text: // Version: v0.13-65-g778a087
  // Last commit: 778a087 (2013-07-21 19:10:35 -0700)
  
  
  (function() {
  var define, requireModule;
  
  (function() {
    var registry = {}, seen = {};
  
    define = function(name, deps, callback) {
      registry[name] = { deps: deps, callback: callback };
    };
  
    requireModule = function(name) {
      if (seen[name]) { return seen[name]; }
      seen[name] = {};
  
      var mod, deps, callback, reified , exports;
  
      mod = registry[name];
  
      if (!mod) {
        throw new Error("Module '" + name + "' not found.");
      }
  
      deps = mod.deps;
      callback = mod.callback;
      reified = [];
      exports;
  
      for (var i=0, l=deps.length; i<l; i++) {
        if (deps[i] === 'exports') {
          reified.push(exports = {});
        } else {
          reified.push(requireModule(deps[i]));
        }
      }
  
      var value = callback.apply(this, reified);
      return seen[name] = exports || value;
    };
  })();
  (function() {
  /**
    @module data
    @main data
  */
  
  /**
    All Ember Data methods and functions are defined inside of this namespace. 
  
    @class DS
    @static
  */
  
  window.DS = Ember.Namespace.create({
    VERSION: '0.13'
  });
  
  })();
  
  
  
  (function() {
  var set = Ember.set;
  
  /**
    This code registers an injection for Ember.Application.
  
    If an Ember.js developer defines a subclass of DS.Store on their application,
    this code will automatically instantiate it and make it available on the
    router.
  
    Additionally, after an application's controllers have been injected, they will
    each have the store made available to them.
  
    For example, imagine an Ember.js application with the following classes:
  
    App.Store = DS.Store.extend({
      adapter: 'App.MyCustomAdapter'
    });
  
    App.PostsController = Ember.ArrayController.extend({
      // ...
    });
  
    When the application is initialized, `App.Store` will automatically be
    instantiated, and the instance of `App.PostsController` will have its `store`
    property set to that instance.
  
    Note that this code will only be run if the `ember-application` package is
    loaded. If Ember Data is being used in an environment other than a
    typical application (e.g., node.js where only `ember-runtime` is available),
    this code will be ignored.
  */
  
  Ember.onLoad('Ember.Application', function(Application) {
    Application.initializer({
      name: "store",
  
      initialize: function(container, application) {
        application.register('store:main', application.Store);
  
        // Eagerly generate the store so defaultStore is populated.
        // TODO: Do this in a finisher hook
        container.lookup('store:main');
      }
    });
  
    Application.initializer({
      name: "injectStore",
  
      initialize: function(container, application) {
        application.inject('controller', 'store', 'store:main');
        application.inject('route', 'store', 'store:main');
      }
    });
  });
  
  })();
  
  
  
  (function() {
  /**
   * Date.parse with progressive enhancement for ISO 8601 <https://github.com/csnover/js-iso8601>
   * © 2011 Colin Snover <http://zetafleet.com>
   * Released under MIT license.
   */
  
  Ember.Date = Ember.Date || {};
  
  var origParse = Date.parse, numericKeys = [ 1, 4, 5, 6, 7, 10, 11 ];
  Ember.Date.parse = function (date) {
      var timestamp, struct, minutesOffset = 0;
  
      // ES5 §15.9.4.2 states that the string should attempt to be parsed as a Date Time String Format string
      // before falling back to any implementation-specific date parsing, so that’s what we do, even if native
      // implementations could be faster
      //              1 YYYY                2 MM       3 DD           4 HH    5 mm       6 ss        7 msec        8 Z 9 ±    10 tzHH    11 tzmm
      if ((struct = /^(\d{4}|[+\-]\d{6})(?:-(\d{2})(?:-(\d{2}))?)?(?:T(\d{2}):(\d{2})(?::(\d{2})(?:\.(\d{3}))?)?(?:(Z)|([+\-])(\d{2})(?::(\d{2}))?)?)?$/.exec(date))) {
          // avoid NaN timestamps caused by “undefined” values being passed to Date.UTC
          for (var i = 0, k; (k = numericKeys[i]); ++i) {
              struct[k] = +struct[k] || 0;
          }
  
          // allow undefined days and months
          struct[2] = (+struct[2] || 1) - 1;
          struct[3] = +struct[3] || 1;
  
          if (struct[8] !== 'Z' && struct[9] !== undefined) {
              minutesOffset = struct[10] * 60 + struct[11];
  
              if (struct[9] === '+') {
                  minutesOffset = 0 - minutesOffset;
              }
          }
  
          timestamp = Date.UTC(struct[1], struct[2], struct[3], struct[4], struct[5] + minutesOffset, struct[6], struct[7]);
      }
      else {
          timestamp = origParse ? origParse(date) : NaN;
      }
  
      return timestamp;
  };
  
  if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.Date) {
    Date.parse = Ember.Date.parse;
  }
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  var Evented = Ember.Evented,              // ember-runtime/mixins/evented
      Deferred = Ember.DeferredMixin,       // ember-runtime/mixins/evented
      run = Ember.run,                      // ember-metal/run-loop
      get = Ember.get;                      // ember-metal/accessors
  
  var LoadPromise = Ember.Mixin.create(Evented, Deferred, {
    init: function() {
      this._super.apply(this, arguments);
  
      this.one('didLoad', this, function() {
        this.resolve(this);
      });
  
      this.one('becameError', this, function() {
        this.reject(this);
      });
  
      if (get(this, 'isLoaded')) {
        this.trigger('didLoad');
      }
    }
  });
  
  DS.LoadPromise = LoadPromise;
  
  })();
  
  
  
  (function() {
  /**
  */
  
  var get = Ember.get, set = Ember.set;
  
  var LoadPromise = DS.LoadPromise; // system/mixins/load_promise
  
  /**
    A record array is an array that contains records of a certain type. The record
    array materializes records as needed when they are retrieved for the first
    time. You should not create record arrays yourself. Instead, an instance of
    DS.RecordArray or its subclasses will be returned by your application's store
    in response to queries.
  
    @module data
    @submodule data-record-array
    @main data-record-array
  
    @class RecordArray
    @namespace DS
    @extends Ember.ArrayProxy
    @uses Ember.Evented
    @uses DS.LoadPromise
  */
  
  DS.RecordArray = Ember.ArrayProxy.extend(LoadPromise, {
    /**
      The model type contained by this record array.
  
      @type DS.Model
    */
    type: null,
  
    // The array of client ids backing the record array. When a
    // record is requested from the record array, the record
    // for the client id at the same index is materialized, if
    // necessary, by the store.
    content: null,
  
    isLoaded: false,
    isUpdating: false,
  
    // The store that created this record array.
    store: null,
  
    objectAtContent: function(index) {
      var content = get(this, 'content'),
          reference = content.objectAt(index),
          store = get(this, 'store');
  
      if (reference) {
        return store.recordForReference(reference);
      }
    },
  
    materializedObjectAt: function(index) {
      var reference = get(this, 'content').objectAt(index);
      if (!reference) { return; }
  
      if (get(this, 'store').recordIsMaterialized(reference)) {
        return this.objectAt(index);
      }
    },
  
    update: function() {
      if (get(this, 'isUpdating')) { return; }
  
      var store = get(this, 'store'),
          type = get(this, 'type');
  
      store.fetchAll(type, this);
    },
  
    addReference: function(reference) {
      get(this, 'content').addObject(reference);
    },
  
    removeReference: function(reference) {
      get(this, 'content').removeObject(reference);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-record-array
  */
  
  var get = Ember.get;
  
  /**
    @class FilteredRecordArray
    @namespace DS
    @extends DS.RecordArray
    @constructor
  */
  DS.FilteredRecordArray = DS.RecordArray.extend({
    filterFunction: null,
    isLoaded: true,
  
    replace: function() {
      var type = get(this, 'type').toString();
      throw new Error("The result of a client-side filter (on " + type + ") is immutable.");
    },
  
    updateFilter: Ember.observer(function() {
      var manager = get(this, 'manager');
      manager.updateFilter(this, get(this, 'type'), get(this, 'filterFunction'));
    }, 'filterFunction')
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-record-array
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    @class AdapterPopulatedRecordArray
    @namespace DS
    @extends DS.RecordArray
    @constructor
  */
  DS.AdapterPopulatedRecordArray = DS.RecordArray.extend({
    query: null,
  
    replace: function() {
      var type = get(this, 'type').toString();
      throw new Error("The result of a server query (on " + type + ") is immutable.");
    },
  
    load: function(references) {
      this.setProperties({
        content: Ember.A(references),
        isLoaded: true
      });
  
      // TODO: does triggering didLoad event should be the last action of the runLoop?
      Ember.run.once(this, 'trigger', 'didLoad');
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-record-array
  */
  
  var get = Ember.get, set = Ember.set;
  var map = Ember.EnumerableUtils.map;
  
  /**
    A ManyArray is a RecordArray that represents the contents of a has-many
    relationship.
  
    The ManyArray is instantiated lazily the first time the relationship is
    requested.
  
    ### Inverses
  
    Often, the relationships in Ember Data applications will have
    an inverse. For example, imagine the following models are
    defined:
  
        App.Post = DS.Model.extend({
          comments: DS.hasMany('App.Comment')
        });
  
        App.Comment = DS.Model.extend({
          post: DS.belongsTo('App.Post')
        });
  
    If you created a new instance of `App.Post` and added
    a `App.Comment` record to its `comments` has-many
    relationship, you would expect the comment's `post`
    property to be set to the post that contained
    the has-many.
  
    We call the record to which a relationship belongs the
    relationship's _owner_.
  
    @class ManyArray
    @namespace DS
    @extends DS.RecordArray
    @constructor
  */
  DS.ManyArray = DS.RecordArray.extend({
    init: function() {
      this._super.apply(this, arguments);
      this._changesToSync = Ember.OrderedSet.create();
    },
  
    /**
      @private
  
      The record to which this relationship belongs.
  
      @property {DS.Model}
    */
    owner: null,
  
    /**
      @private
  
      `true` if the relationship is polymorphic, `false` otherwise.
  
      @property {Boolean}
    */
    isPolymorphic: false,
  
    // LOADING STATE
  
    isLoaded: false,
  
    loadingRecordsCount: function(count) {
      this.loadingRecordsCount = count;
    },
  
    loadedRecord: function() {
      this.loadingRecordsCount--;
      if (this.loadingRecordsCount === 0) {
        set(this, 'isLoaded', true);
        this.trigger('didLoad');
      }
    },
  
    fetch: function() {
      var references = get(this, 'content'),
          store = get(this, 'store'),
          owner = get(this, 'owner');
  
      store.fetchUnloadedReferences(references, owner);
    },
  
    // Overrides Ember.Array's replace method to implement
    replaceContent: function(index, removed, added) {
      // Map the array of record objects into an array of  client ids.
      added = map(added, function(record) {
        Ember.assert("You can only add records of " + (get(this, 'type') && get(this, 'type').toString()) + " to this relationship.", !get(this, 'type') || (get(this, 'type').detectInstance(record)) );
        return get(record, '_reference');
      }, this);
  
      this._super(index, removed, added);
    },
  
    arrangedContentDidChange: function() {
      this.fetch();
    },
  
    arrayContentWillChange: function(index, removed, added) {
      var owner = get(this, 'owner'),
          name = get(this, 'name');
  
      if (!owner._suspendedRelationships) {
        // This code is the first half of code that continues inside
        // of arrayContentDidChange. It gets or creates a change from
        // the child object, adds the current owner as the old
        // parent if this is the first time the object was removed
        // from a ManyArray, and sets `newParent` to null.
        //
        // Later, if the object is added to another ManyArray,
        // the `arrayContentDidChange` will set `newParent` on
        // the change.
        for (var i=index; i<index+removed; i++) {
          var reference = get(this, 'content').objectAt(i);
  
          var change = DS.RelationshipChange.createChange(owner.get('_reference'), reference, get(this, 'store'), {
            parentType: owner.constructor,
            changeType: "remove",
            kind: "hasMany",
            key: name
          });
  
          this._changesToSync.add(change);
        }
      }
  
      return this._super.apply(this, arguments);
    },
  
    arrayContentDidChange: function(index, removed, added) {
      this._super.apply(this, arguments);
  
      var owner = get(this, 'owner'),
          name = get(this, 'name'),
          store = get(this, 'store');
  
      if (!owner._suspendedRelationships) {
        // This code is the second half of code that started in
        // `arrayContentWillChange`. It gets or creates a change
        // from the child object, and adds the current owner as
        // the new parent.
        for (var i=index; i<index+added; i++) {
          var reference = get(this, 'content').objectAt(i);
  
          var change = DS.RelationshipChange.createChange(owner.get('_reference'), reference, store, {
            parentType: owner.constructor,
            changeType: "add",
            kind:"hasMany",
            key: name
          });
          change.hasManyName = name;
  
          this._changesToSync.add(change);
        }
  
        // We wait until the array has finished being
        // mutated before syncing the OneToManyChanges created
        // in arrayContentWillChange, so that the array
        // membership test in the sync() logic operates
        // on the final results.
        this._changesToSync.forEach(function(change) {
          change.sync();
        });
        DS.OneToManyChange.ensureSameTransaction(this._changesToSync, store);
        this._changesToSync.clear();
      }
    },
  
    // Create a child record within the owner
    createRecord: function(hash, transaction) {
      var owner = get(this, 'owner'),
          store = get(owner, 'store'),
          type = get(this, 'type'),
          record;
  
      Ember.assert("You can not create records of " + (get(this, 'type') && get(this, 'type').toString()) + " on this polymorphic relationship.", !get(this, 'isPolymorphic'));
  
      transaction = transaction || get(owner, 'transaction');
  
      record = store.createRecord.call(store, type, hash, transaction);
      this.pushObject(record);
  
      return record;
    }
  
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-record-array
  */
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set, forEach = Ember.EnumerableUtils.forEach;
  
  /**
    @module data
    @submodule data-transaction
  */
  
  /**
    A transaction allows you to collect multiple records into a unit of work
    that can be committed or rolled back as a group.
  
    For example, if a record has local modifications that have not yet
    been saved, calling `commit()` on its transaction will cause those
    modifications to be sent to the adapter to be saved. Calling
    `rollback()` on its transaction would cause all of the modifications to
    be discarded and the record to return to the last known state before
    changes were made.
  
    If a newly created record's transaction is rolled back, it will
    immediately transition to the deleted state.
  
    If you do not explicitly create a transaction, a record is assigned to
    an implicit transaction called the default transaction. In these cases,
    you can treat your application's instance of `DS.Store` as a transaction
    and call the `commit()` and `rollback()` methods on the store itself.
  
    Once a record has been successfully committed or rolled back, it will
    be moved back to the implicit transaction. Because it will now be in
    a clean state, it can be moved to a new transaction if you wish.
  
    ### Creating a Transaction
  
    To create a new transaction, call the `transaction()` method of your
    application's `DS.Store` instance:
  
        var transaction = App.store.transaction();
  
    This will return a new instance of `DS.Transaction` with no records
    yet assigned to it.
  
    ### Adding Existing Records
  
    Add records to a transaction using the `add()` method:
  
        record = App.store.find(App.Person, 1);
        transaction.add(record);
  
    Note that only records whose `isDirty` flag is `false` may be added
    to a transaction. Once modifications to a record have been made
    (its `isDirty` flag is `true`), it is not longer able to be added to
    a transaction.
  
    ### Creating New Records
  
    Because newly created records are dirty from the time they are created,
    and because dirty records can not be added to a transaction, you must
    use the `createRecord()` method to assign new records to a transaction.
  
    For example, instead of this:
  
      var transaction = store.transaction();
      var person = App.Person.createRecord({ name: "Steve" });
  
      // won't work because person is dirty
      transaction.add(person);
  
    Call `createRecord()` on the transaction directly:
  
      var transaction = store.transaction();
      transaction.createRecord(App.Person, { name: "Steve" });
  
    ### Asynchronous Commits
  
    Typically, all of the records in a transaction will be committed
    together. However, new records that have a dependency on other new
    records need to wait for their parent record to be saved and assigned an
    ID. In that case, the child record will continue to live in the
    transaction until its parent is saved, at which time the transaction will
    attempt to commit again.
  
    For this reason, you should not re-use transactions once you have committed
    them. Always make a new transaction and move the desired records to it before
    calling commit.
  */
  
  DS.Transaction = Ember.Object.extend({
    /**
      @private
  
      Creates the bucket data structure used to segregate records by
      type.
    */
    init: function() {
      set(this, 'records', Ember.OrderedSet.create());
    },
  
    /**
      Creates a new record of the given type and assigns it to the transaction
      on which the method was called.
  
      This is useful as only clean records can be added to a transaction and
      new records created using other methods immediately become dirty.
  
      @param {DS.Model} type the model type to create
      @param {Object} hash the data hash to assign the new record
    */
    createRecord: function(type, hash) {
      var store = get(this, 'store');
  
      return store.createRecord(type, hash, this);
    },
  
    isEqualOrDefault: function(other) {
      if (this === other || other === get(this, 'store.defaultTransaction')) {
        return true;
      }
    },
  
    isDefault: Ember.computed(function() {
      return this === get(this, 'store.defaultTransaction');
    }).volatile(),
  
    /**
      Adds an existing record to this transaction. Only records without
      modificiations (i.e., records whose `isDirty` property is `false`)
      can be added to a transaction.
  
      @param {DS.Model} record the record to add to the transaction
    */
    add: function(record) {
      Ember.assert("You must pass a record into transaction.add()", record instanceof DS.Model);
  
      var store = get(this, 'store');
      var adapter = get(store, '_adapter');
      var serializer = get(adapter, 'serializer');
      serializer.eachEmbeddedRecord(record, function(embeddedRecord, embeddedType) {
        if (embeddedType === 'load') { return; }
  
        this.add(embeddedRecord);
      }, this);
  
      this.adoptRecord(record);
    },
  
    relationships: Ember.computed(function() {
      var relationships = Ember.OrderedSet.create(),
          records = get(this, 'records'),
          store = get(this, 'store');
  
      forEach(records, function(record) {
        var reference = get(record, '_reference');
        var changes = store.relationshipChangesFor(reference);
        for(var i = 0; i < changes.length; i++) {
          relationships.add(changes[i]);
        }
      });
  
      return relationships;
    }).volatile(),
  
    commitDetails: Ember.computed(function() {
      var commitDetails = Ember.MapWithDefault.create({
        defaultValue: function() {
          return {
            created: Ember.OrderedSet.create(),
            updated: Ember.OrderedSet.create(),
            deleted: Ember.OrderedSet.create()
          };
        }
      });
  
      var records = get(this, 'records'),
          store = get(this, 'store');
  
      forEach(records, function(record) {
        if(!get(record, 'isDirty')) return;
        record.send('willCommit');
        var adapter = store.adapterForType(record.constructor);
        commitDetails.get(adapter)[get(record, 'dirtyType')].add(record);
      });
  
      return commitDetails;
    }).volatile(),
  
    /**
      Commits the transaction, which causes all of the modified records that
      belong to the transaction to be sent to the adapter to be saved.
  
      Once you call `commit()` on a transaction, you should not re-use it.
  
      When a record is saved, it will be removed from this transaction and
      moved back to the store's default transaction.
    */
    commit: function() {
      var store = get(this, 'store');
  
      if (get(this, 'isDefault')) {
        set(store, 'defaultTransaction', store.transaction());
      }
  
      this.removeCleanRecords();
  
      var commitDetails = get(this, 'commitDetails'),
          relationships = get(this, 'relationships');
  
      forEach(commitDetails, function(adapter, commitDetails) {
        Ember.assert("You tried to commit records but you have no adapter", adapter);
        Ember.assert("You tried to commit records but your adapter does not implement `commit`", adapter.commit);
  
        adapter.commit(store, commitDetails);
      });
  
      // Once we've committed the transaction, there is no need to
      // keep the OneToManyChanges around. Destroy them so they
      // can be garbage collected.
      relationships.forEach(function(relationship) {
        relationship.destroy();
      });
    },
  
    /**
      Rolling back a transaction resets the records that belong to
      that transaction.
  
      Updated records have their properties reset to the last known
      value from the persistence layer. Deleted records are reverted
      to a clean, non-deleted state. Newly created records immediately
      become deleted, and are not sent to the adapter to be persisted.
  
      After the transaction is rolled back, any records that belong
      to it will return to the store's default transaction, and the
      current transaction should not be used again.
    */
    rollback: function() {
      // Destroy all relationship changes and compute
      // all references affected
      var references = Ember.OrderedSet.create();
      var relationships = get(this, 'relationships');
      relationships.forEach(function(r) {
        references.add(r.firstRecordReference);
        references.add(r.secondRecordReference);
        r.destroy();
      });
  
      var records = get(this, 'records');
      forEach(records, function(record) {
        if (!record.get('isDirty')) return;
        record.send('rollback');
      });
  
      // Now that all records in the transaction are guaranteed to be
      // clean, migrate them all to the store's default transaction.
      this.removeCleanRecords();
  
      // Remaining associated references are not part of the transaction, but
      // can still have hasMany's which have not been reloaded
      references.forEach(function(r) {
        if (r && r.record) {
          var record = r.record;
          record.suspendRelationshipObservers(function() {
            record.reloadHasManys();
          });
        }
      }, this);
    },
  
    /**
      @private
  
      Removes a record from this transaction and back to the store's
      default transaction.
  
      Note: This method is private for now, but should probably be exposed
      in the future once we have stricter error checking (for example, in the
      case of the record being dirty).
  
      @param {DS.Model} record
    */
    remove: function(record) {
      var defaultTransaction = get(this, 'store.defaultTransaction');
      defaultTransaction.adoptRecord(record);
    },
  
    /**
      @private
  
      Removes all of the records in the transaction's clean bucket.
    */
    removeCleanRecords: function() {
      var records = get(this, 'records');
      forEach(records, function(record) {
        if(!record.get('isDirty')) {
          this.remove(record);
        }
      }, this);
    },
  
    /**
      @private
  
      This method moves a record into a different transaction without the normal
      checks that ensure that the user is not doing something weird, like moving
      a dirty record into a new transaction.
  
      It is designed for internal use, such as when we are moving a clean record
      into a new transaction when the transaction is committed.
  
      This method must not be called unless the record is clean.
  
      @param {DS.Model} record
    */
    adoptRecord: function(record) {
      var oldTransaction = get(record, 'transaction');
  
      if (oldTransaction) {
        oldTransaction.removeRecord(record);
      }
  
      get(this, 'records').add(record);
      set(record, 'transaction', this);
    },
  
    /**
     @private
  
     Removes the record without performing the normal checks
     to ensure that the record is re-added to the store's
     default transaction.
    */
    removeRecord: function(record) {
      get(this, 'records').remove(record);
    }
  
  });
  
  DS.Transaction.reopenClass({
    ensureSameTransaction: function(records){
      var transactions = Ember.A();
      forEach( records, function(record){
        if (record){ transactions.pushObject(get(record, 'transaction')); }
      });
  
      var transaction = transactions.reduce(function(prev, t) {
        if (!get(t, 'isDefault')) {
          if (prev === null) { return t; }
          Ember.assert("All records in a changed relationship must be in the same transaction. You tried to change the relationship between records when one is in " + t + " and the other is in " + prev, t === prev);
        }
  
        return prev;
      }, null);
  
      if (transaction) {
        forEach( records, function(record){
          if (record){ transaction.add(record); }
        });
      } else {
        transaction = transactions.objectAt(0);
      }
      return transaction;
     }
  });
  
  })();
  
  
  
  (function() {
  var get = Ember.get;
  
  /**
    The Mappable mixin is designed for classes that would like to
    behave as a map for configuration purposes.
  
    For example, the DS.Adapter class can behave like a map, with
    more semantic API, via the `map` API:
  
      DS.Adapter.map('App.Person', { firstName: { key: 'FIRST' } });
  
    Class configuration via a map-like API has a few common requirements
    that differentiate it from the standard Ember.Map implementation.
  
    First, values often are provided as strings that should be normalized
    into classes the first time the configuration options are used.
  
    Second, the values configured on parent classes should also be taken
    into account.
  
    Finally, setting the value of a key sometimes should merge with the
    previous value, rather than replacing it.
  
    This mixin provides a instance method, `createInstanceMapFor`, that
    will reify all of the configuration options set on an instance's
    constructor and provide it for the instance to use.
  
    Classes can implement certain hooks that allow them to customize
    the requirements listed above:
  
    * `resolveMapConflict` - called when a value is set for an existing
      value
    * `transformMapKey` - allows a key name (for example, a global path
      to a class) to be normalized
    * `transformMapValue` - allows a value (for example, a class that
      should be instantiated) to be normalized
  
    Classes that implement this mixin should also implement a class
    method built using the `generateMapFunctionFor` method:
  
      DS.Adapter.reopenClass({
        map: DS.Mappable.generateMapFunctionFor('attributes', function(key, newValue, map) {
          var existingValue = map.get(key);
  
          for (var prop in newValue) {
            if (!newValue.hasOwnProperty(prop)) { continue; }
            existingValue[prop] = newValue[prop];
          }
        })
      });
  
    The function passed to `generateMapFunctionFor` is invoked every time a
    new value is added to the map.
  
    @class _Mappable
    @private
    @namespace DS
    @extends Ember.Mixin
  **/
  
  var resolveMapConflict = function(oldValue, newValue) {
    return oldValue;
  };
  
  var transformMapKey = function(key, value) {
    return key;
  };
  
  var transformMapValue = function(key, value) {
    return value;
  };
  
  DS._Mappable = Ember.Mixin.create({
    createInstanceMapFor: function(mapName) {
      var instanceMeta = getMappableMeta(this);
  
      instanceMeta.values = instanceMeta.values || {};
  
      if (instanceMeta.values[mapName]) { return instanceMeta.values[mapName]; }
  
      var instanceMap = instanceMeta.values[mapName] = new Ember.Map();
  
      var klass = this.constructor;
  
      while (klass && klass !== DS.Store) {
        this._copyMap(mapName, klass, instanceMap);
        klass = klass.superclass;
      }
  
      instanceMeta.values[mapName] = instanceMap;
      return instanceMap;
    },
  
    _copyMap: function(mapName, klass, instanceMap) {
      var classMeta = getMappableMeta(klass);
  
      var classMap = classMeta[mapName];
      if (classMap) {
        classMap.forEach(eachMap, this);
      }
  
      function eachMap(key, value) {
        var transformedKey = (klass.transformMapKey || transformMapKey)(key, value);
        var transformedValue = (klass.transformMapValue || transformMapValue)(key, value);
  
        var oldValue = instanceMap.get(transformedKey);
        var newValue = transformedValue;
  
        if (oldValue) {
          newValue = (this.constructor.resolveMapConflict || resolveMapConflict)(oldValue, newValue);
        }
  
        instanceMap.set(transformedKey, newValue);
      }
    }
  
  
  });
  
  DS._Mappable.generateMapFunctionFor = function(mapName, transform) {
    return function(key, value) {
      var meta = getMappableMeta(this);
  
      var map = meta[mapName] || Ember.MapWithDefault.create({
        defaultValue: function() { return {}; }
      });
  
      transform.call(this, key, value, map);
  
      meta[mapName] = map;
    };
  };
  
  function getMappableMeta(obj) {
    var meta = Ember.meta(obj, true),
        keyName = 'DS.Mappable',
        value = meta[keyName];
  
    if (!value) { meta[keyName] = {}; }
  
    if (!meta.hasOwnProperty(keyName)) {
      meta[keyName] = Ember.create(meta[keyName]);
    }
  
    return meta[keyName];
  }
  
  })();
  
  
  
  (function() {
  /*globals Ember*/
  /*jshint eqnull:true*/
  /**
    @module data
    @submodule data-store
  */
  
  var get = Ember.get, set = Ember.set;
  var once = Ember.run.once;
  var isNone = Ember.isNone;
  var forEach = Ember.EnumerableUtils.forEach;
  var indexOf = Ember.EnumerableUtils.indexOf;
  var map = Ember.EnumerableUtils.map;
  
  // These values are used in the data cache when clientIds are
  // needed but the underlying data has not yet been loaded by
  // the server.
  var UNLOADED = 'unloaded';
  var LOADING = 'loading';
  var MATERIALIZED = { materialized: true };
  var CREATED = { created: true };
  
  // Implementors Note:
  //
  //   The variables in this file are consistently named according to the following
  //   scheme:
  //
  //   * +id+ means an identifier managed by an external source, provided inside
  //     the data provided by that source. These are always coerced to be strings
  //     before being used internally.
  //   * +clientId+ means a transient numerical identifier generated at runtime by
  //     the data store. It is important primarily because newly created objects may
  //     not yet have an externally generated id.
  //   * +reference+ means a record reference object, which holds metadata about a
  //     record, even if it has not yet been fully materialized.
  //   * +type+ means a subclass of DS.Model.
  
  // Used by the store to normalize IDs entering the store.  Despite the fact
  // that developers may provide IDs as numbers (e.g., `store.find(Person, 1)`),
  // it is important that internally we use strings, since IDs may be serialized
  // and lose type information.  For example, Ember's router may put a record's
  // ID into the URL, and if we later try to deserialize that URL and find the
  // corresponding record, we will not know if it is a string or a number.
  var coerceId = function(id) {
    return id == null ? null : id+'';
  };
  
  
  /**
    The store contains all of the data for records loaded from the server.
    It is also responsible for creating instances of DS.Model that wrap
    the individual data for a record, so that they can be bound to in your
    Handlebars templates.
  
    Define your application's store like this:
  
         MyApp.Store = DS.Store.extend();
  
    Most Ember.js applications will only have a single `DS.Store` that is
    automatically created by their `Ember.Application`.
  
    You can retrieve models from the store in several ways. To retrieve a record
    for a specific id, use `DS.Model`'s `find()` method:
  
         var person = App.Person.find(123);
  
    If your application has multiple `DS.Store` instances (an unusual case), you can
    specify which store should be used:
  
        var person = store.find(App.Person, 123);
  
    In general, you should retrieve models using the methods on `DS.Model`; you should
    rarely need to interact with the store directly.
  
    By default, the store will talk to your backend using a standard REST mechanism.
    You can customize how the store talks to your backend by specifying a custom adapter:
  
         MyApp.store = DS.Store.create({
           adapter: 'MyApp.CustomAdapter'
         });
  
    You can learn more about writing a custom adapter by reading the `DS.Adapter`
    documentation.
  
    @class Store
    @namespace DS
    @extends Ember.Object
    @uses DS._Mappable
    @constructor
  */
  DS.Store = Ember.Object.extend(DS._Mappable, {
  
    /**
      Many methods can be invoked without specifying which store should be used.
      In those cases, the first store created will be used as the default. If
      an application has multiple stores, it should specify which store to use
      when performing actions, such as finding records by ID.
  
      The init method registers this store as the default if none is specified.
    */
    init: function() {
      if (!get(DS, 'defaultStore') || get(this, 'isDefaultStore')) {
        set(DS, 'defaultStore', this);
      }
  
      // internal bookkeeping; not observable
      this.typeMaps = {};
      this.recordArrayManager = DS.RecordArrayManager.create({
        store: this
      });
      this.relationshipChanges = {};
  
      set(this, 'currentTransaction', this.transaction());
      set(this, 'defaultTransaction', this.transaction());
    },
  
    /**
      Returns a new transaction scoped to this store. This delegates
      responsibility for invoking the adapter's commit mechanism to
      a transaction.
  
      Transaction are responsible for tracking changes to records
      added to them, and supporting `commit` and `rollback`
      functionality. Committing a transaction invokes the store's
      adapter, while rolling back a transaction reverses all
      changes made to records added to the transaction.
  
      A store has an implicit (default) transaction, which tracks changes
      made to records not explicitly added to a transaction.
  
      @see {DS.Transaction}
      @returns DS.Transaction
    */
    transaction: function() {
      return DS.Transaction.create({ store: this });
    },
  
    /**
      @private
  
      Instructs the store to materialize the data for a given record.
  
      To materialize a record, the store first retrieves the opaque data that was
      passed to either `load()` or `loadMany()`. Then, the data and the record
      are passed to the adapter's `materialize()` method, which allows the adapter
      to translate arbitrary data structures from the adapter into the normalized
      form the record expects.
  
      The adapter's `materialize()` method will invoke `materializeAttribute()`,
      `materializeHasMany()` and `materializeBelongsTo()` on the record to
      populate it with normalized values.
  
      @param {DS.Model} record
    */
    materializeData: function(record) {
      var reference = get(record, '_reference'),
          data = reference.data,
          adapter = this.adapterForType(record.constructor);
  
      reference.data = MATERIALIZED;
  
      record.setupData();
  
      if (data !== CREATED) {
        // Instructs the adapter to extract information from the
        // opaque data and materialize the record's attributes and
        // relationships.
        adapter.materialize(record, data, reference.prematerialized);
      }
    },
  
    /**
      The adapter to use to communicate to a backend server or other persistence layer.
  
      This can be specified as an instance, a class, or a property path that specifies
      where the adapter can be located.
  
      @property {DS.Adapter|String}
    */
    adapter: Ember.computed(function(){
      if (!Ember.testing) {
        Ember.debug("A custom DS.Adapter was not provided as the 'Adapter' property of your application's Store. The default (DS.RESTAdapter) will be used.");
      }
  
      return 'DS.RESTAdapter';
    }).property(),
  
  
    /**
      @private
  
      Returns a JSON representation of the record using the adapter's
      serialization strategy. This method exists primarily to enable
      a record, which has access to its store (but not the store's
      adapter) to provide a `serialize()` convenience.
  
      The available options are:
  
      * `includeId`: `true` if the record's ID should be included in
        the JSON representation
  
      @param {DS.Model} record the record to serialize
      @param {Object} options an options hash
    */
    serialize: function(record, options) {
      return this.adapterForType(record.constructor).serialize(record, options);
    },
  
    /**
      @private
  
      This property returns the adapter, after resolving a possible
      property path.
  
      If the supplied `adapter` was a class, or a String property
      path resolved to a class, this property will instantiate the
      class.
  
      This property is cacheable, so the same instance of a specified
      adapter class should be used for the lifetime of the store.
  
      @returns DS.Adapter
    */
    _adapter: Ember.computed(function() {
      var adapter = get(this, 'adapter');
      if (typeof adapter === 'string') {
        adapter = get(this, adapter, false) || get(Ember.lookup, adapter);
      }
  
      if (DS.Adapter.detect(adapter)) {
        adapter = adapter.create();
      }
  
      return adapter;
    }).property('adapter'),
  
    /**
      @private
  
      A monotonically increasing number to be used to uniquely identify
      data and records.
  
      It starts at 1 so other parts of the code can test for truthiness
      when provided a `clientId` instead of having to explicitly test
      for undefined.
    */
    clientIdCounter: 1,
  
    // .....................
    // . CREATE NEW RECORD .
    // .....................
  
    /**
      Create a new record in the current store. The properties passed
      to this method are set on the newly created record.
  
      Note: The third `transaction` property is for internal use only.
      If you want to create a record inside of a given transaction,
      use `transaction.createRecord()` instead of `store.createRecord()`.
  
      @method createRecord
      @param {subclass of DS.Model} type
      @param {Object} properties a hash of properties to set on the
        newly created record.
      @returns DS.Model
    */
    createRecord: function(type, properties, transaction) {
      properties = properties || {};
  
      // Create a new instance of the model `type` and put it
      // into the specified `transaction`. If no transaction is
      // specified, the default transaction will be used.
      var record = type._create({
        store: this
      });
  
      transaction = transaction || get(this, 'defaultTransaction');
  
      // adoptRecord is an internal API that allows records to move
      // into a transaction without assertions designed for app
      // code. It is used here to ensure that regardless of new
      // restrictions on the use of the public `transaction.add()`
      // API, we will always be able to insert new records into
      // their transaction.
      transaction.adoptRecord(record);
  
      // `id` is a special property that may not be a `DS.attr`
      var id = properties.id;
  
      // If the passed properties do not include a primary key,
      // give the adapter an opportunity to generate one. Typically,
      // client-side ID generators will use something like uuid.js
      // to avoid conflicts.
  
      if (isNone(id)) {
        var adapter = this.adapterForType(type);
  
        if (adapter && adapter.generateIdForRecord) {
          id = coerceId(adapter.generateIdForRecord(this, record));
          properties.id = id;
        }
      }
  
      // Coerce ID to a string
      id = coerceId(id);
  
      // Create a new `clientId` and associate it with the
      // specified (or generated) `id`. Since we don't have
      // any data for the server yet (by definition), store
      // the sentinel value CREATED as the data for this
      // clientId. If we see this value later, we will skip
      // materialization.
      var reference = this.createReference(type, id);
      reference.data = CREATED;
  
      // Now that we have a reference, attach it to the record we
      // just created.
      set(record, '_reference', reference);
      reference.record = record;
  
      // Move the record out of its initial `empty` state into
      // the `loaded` state.
      record.loadedData();
  
      record.setupData();
  
      // Set the properties specified on the record.
      record.setProperties(properties);
  
      // Resolve record promise
      Ember.run(record, 'resolve', record);
  
      return record;
    },
  
    // .................
    // . DELETE RECORD .
    // .................
  
    /**
      For symmetry, a record can be deleted via the store.
  
      @param {DS.Model} record
    */
    deleteRecord: function(record) {
      record.deleteRecord();
    },
  
    /**
      For symmetry, a record can be unloaded via the store.
  
      @param {DS.Model} record
    */
    unloadRecord: function(record) {
      record.unloadRecord();
    },
  
    // ................
    // . FIND RECORDS .
    // ................
  
    /**
      This is the main entry point into finding records. The first parameter to
      this method is always a subclass of `DS.Model`.
  
      You can use the `find` method on a subclass of `DS.Model` directly if your
      application only has one store. For example, instead of
      `store.find(App.Person, 1)`, you could say `App.Person.find(1)`.
  
      ---
  
      To find a record by ID, pass the `id` as the second parameter:
  
          store.find(App.Person, 1);
          App.Person.find(1);
  
      If the record with that `id` had not previously been loaded, the store will
      return an empty record immediately and ask the adapter to find the data by
      calling the adapter's `find` method.
  
      The `find` method will always return the same object for a given type and
      `id`. To check whether the adapter has populated a record, you can check
      its `isLoaded` property.
  
      ---
  
      To find all records for a type, call `find` with no additional parameters:
  
          store.find(App.Person);
          App.Person.find();
  
      This will return a `RecordArray` representing all known records for the
      given type and kick off a request to the adapter's `findAll` method to load
      any additional records for the type.
  
      The `RecordArray` returned by `find()` is live. If any more records for the
      type are added at a later time through any mechanism, it will automatically
      update to reflect the change.
  
      ---
  
      To find a record by a query, call `find` with a hash as the second
      parameter:
  
          store.find(App.Person, { page: 1 });
          App.Person.find({ page: 1 });
  
      This will return a `RecordArray` immediately, but it will always be an
      empty `RecordArray` at first. It will call the adapter's `findQuery`
      method, which will populate the `RecordArray` once the server has returned
      results.
  
      You can check whether a query results `RecordArray` has loaded by checking
      its `isLoaded` property.
  
      @method find
      @param {DS.Model} type
      @param {Object|String|Integer|null} id
    */
    find: function(type, id) {
      if (id === undefined) {
        return this.findAll(type);
      }
  
      // We are passed a query instead of an id.
      if (Ember.typeOf(id) === 'object') {
        return this.findQuery(type, id);
      }
  
      return this.findById(type, coerceId(id));
    },
  
    /**
      @private
  
      This method returns a record for a given type and id combination.
  
      If the store has never seen this combination of type and id before, it
      creates a new `clientId` with the LOADING sentinel and asks the adapter to
      load the data.
  
      If the store has seen the combination, this method delegates to
      `getByReference`.
    */
    findById: function(type, id) {
      var reference;
  
      if (this.hasReferenceForId(type, id)) {
        reference = this.referenceForId(type, id);
  
        if (reference.data !== UNLOADED) {
          return this.recordForReference(reference);
        }
      }
  
      if (!reference) {
        reference = this.createReference(type, id);
      }
  
      reference.data = LOADING;
  
      // create a new instance of the model type in the
      // 'isLoading' state
      var record = this.materializeRecord(reference);
  
      if (reference.data === LOADING) {
        // let the adapter set the data, possibly async
        var adapter = this.adapterForType(type),
            store = this;
  
        Ember.assert("You tried to find a record but you have no adapter (for " + type + ")", adapter);
        Ember.assert("You tried to find a record but your adapter does not implement `find`", adapter.find);
  
        var thenable = adapter.find(this, type, id);
  
        if (thenable && thenable.then) {
          thenable.then(null /* for future use */, function(error) {
            store.recordWasError(record);
          });
        }
      }
  
      return record;
    },
  
    reloadRecord: function(record) {
      var type = record.constructor,
          adapter = this.adapterForType(type),
          store = this,
          id = get(record, 'id');
  
      Ember.assert("You cannot update a record without an ID", id);
      Ember.assert("You tried to update a record but you have no adapter (for " + type + ")", adapter);
      Ember.assert("You tried to update a record but your adapter does not implement `find`", adapter.find);
  
      var thenable = adapter.find(this, type, id);
  
      if (thenable && thenable.then) {
        thenable.then(null /* for future use */, function(error) {
          store.recordWasError(record);
        });
      }
    },
  
    /**
      @private
  
      This method returns a record for a given record refeence.
  
      If no record for the reference has yet been materialized, this method will
      materialize a new `DS.Model` instance. This allows adapters to eagerly load
      large amounts of data into the store, and avoid incurring the cost of
      creating models until they are requested.
  
      In short, it's a convenient way to get a record for a known
      record reference, materializing it if necessary.
  
      @param {Object} reference
      @returns {DS.Model}
    */
    recordForReference: function(reference) {
      var record = reference.record;
  
      if (!record) {
        // create a new instance of the model type in the
        // 'isLoading' state
        record = this.materializeRecord(reference);
      }
  
      return record;
    },
  
    /**
      @private
  
      Given an array of `reference`s, determines which of those
      `clientId`s has not yet been loaded.
  
      In preparation for loading, this method also marks any unloaded
      `clientId`s as loading.
    */
    unloadedReferences: function(references) {
      var unloadedReferences = [];
  
      for (var i=0, l=references.length; i<l; i++) {
        var reference = references[i];
  
        if (reference.data === UNLOADED) {
          unloadedReferences.push(reference);
          reference.data = LOADING;
        }
      }
  
      return unloadedReferences;
    },
  
    /**
      @private
  
      This method is the entry point that relationships use to update
      themselves when their underlying data changes.
  
      First, it determines which of its `reference`s are still unloaded,
      then invokes `findMany` on the adapter.
    */
    fetchUnloadedReferences: function(references, owner) {
      var unloadedReferences = this.unloadedReferences(references);
      this.fetchMany(unloadedReferences, owner);
    },
  
    /**
      @private
  
      This method takes a list of `reference`s, groups the `reference`s by type,
      converts the `reference`s into IDs, and then invokes the adapter's `findMany`
      method.
  
      The `reference`s are grouped by type to invoke `findMany` on adapters
      for each unique type in `reference`s.
  
      It is used both by a brand new relationship (via the `findMany`
      method) or when the data underlying an existing relationship
      changes (via the `fetchUnloadedReferences` method).
    */
    fetchMany: function(references, owner) {
      if (!references.length) { return; }
  
      // Group By Type
      var referencesByTypeMap = Ember.MapWithDefault.create({
        defaultValue: function() { return Ember.A(); }
      });
      forEach(references, function(reference) {
        referencesByTypeMap.get(reference.type).push(reference);
      });
  
      forEach(referencesByTypeMap, function(type) {
        var references = referencesByTypeMap.get(type),
            ids = map(references, function(reference) { return reference.id; });
  
        var adapter = this.adapterForType(type);
  
        Ember.assert("You tried to load many records but you have no adapter (for " + type + ")", adapter);
        Ember.assert("You tried to load many records but your adapter does not implement `findMany`", adapter.findMany);
  
        adapter.findMany(this, type, ids, owner);
      }, this);
    },
  
    hasReferenceForId: function(type, id) {
      id = coerceId(id);
  
      return !!this.typeMapFor(type).idToReference[id];
    },
  
    referenceForId: function(type, id) {
      id = coerceId(id);
  
      // Check to see if we have seen this type/id pair before.
      var reference = this.typeMapFor(type).idToReference[id];
  
      // If not, create a reference for it but don't populate it
      // with any data yet.
      if (!reference) {
        reference = this.createReference(type, id);
        reference.data = UNLOADED;
      }
  
      return reference;
    },
  
    /**
      @private
  
      `findMany` is the entry point that relationships use to generate a
      new `ManyArray` for the list of IDs specified by the server for
      the relationship.
  
      Its responsibilities are:
  
      * convert the IDs into clientIds
      * determine which of the clientIds still need to be loaded
      * create a new ManyArray whose content is *all* of the clientIds
      * notify the ManyArray of the number of its elements that are
        already loaded
      * insert the unloaded references into the `loadingRecordArrays`
        bookkeeping structure, which will allow the `ManyArray` to know
        when all of its loading elements are loaded from the server.
      * ask the adapter to load the unloaded elements, by invoking
        findMany with the still-unloaded IDs.
    */
    findMany: function(type, idsOrReferencesOrOpaque, record, relationship) {
      // 1. Determine which of the client ids need to be loaded
      // 2. Create a new ManyArray whose content is ALL of the clientIds
      // 3. Decrement the ManyArray's counter by the number of loaded clientIds
      // 4. Put the ManyArray into our bookkeeping data structure, keyed on
      //    the needed clientIds
      // 5. Ask the adapter to load the records for the unloaded clientIds (but
      //    convert them back to ids)
  
      if (!Ember.isArray(idsOrReferencesOrOpaque)) {
        var adapter = this.adapterForType(type);
  
        if (adapter && adapter.findHasMany) {
          adapter.findHasMany(this, record, relationship, idsOrReferencesOrOpaque);
        } else if (!isNone(idsOrReferencesOrOpaque)) {
          Ember.assert("You tried to load many records but you have no adapter (for " + type + ")", adapter);
          Ember.assert("You tried to load many records but your adapter does not implement `findHasMany`", adapter.findHasMany);
        }
  
        return this.recordArrayManager.createManyArray(type, Ember.A());
      }
  
      // Coerce server IDs into Record Reference
      var references = map(idsOrReferencesOrOpaque, function(reference) {
        if (typeof reference !== 'object' && reference !== null) {
          return this.referenceForId(type, reference);
        }
  
        return reference;
      }, this);
  
      var unloadedReferences = this.unloadedReferences(references),
          manyArray = this.recordArrayManager.createManyArray(type, Ember.A(references)),
          reference, i, l;
  
      // Start the decrementing counter on the ManyArray at the number of
      // records we need to load from the adapter
      manyArray.loadingRecordsCount(unloadedReferences.length);
  
      if (unloadedReferences.length) {
        for (i=0, l=unloadedReferences.length; i<l; i++) {
          reference = unloadedReferences[i];
  
          // keep track of the record arrays that a given loading record
          // is part of. This way, if the same record is in multiple
          // ManyArrays, all of their loading records counters will be
          // decremented when the adapter provides the data.
          this.recordArrayManager.registerWaitingRecordArray(manyArray, reference);
        }
  
        this.fetchMany(unloadedReferences, record);
      } else {
        // all requested records are available
        manyArray.set('isLoaded', true);
  
        Ember.run.once(function() {
          manyArray.trigger('didLoad');
        });
      }
  
      return manyArray;
    },
  
    /**
      This method delegates a query to the adapter. This is the one place where
      adapter-level semantics are exposed to the application.
  
      Exposing queries this way seems preferable to creating an abstract query
      language for all server-side queries, and then require all adapters to
      implement them.
  
      @private
      @method findQuery
      @param {Class} type
      @param {Object} query an opaque query to be used by the adapter
      @return {DS.AdapterPopulatedRecordArray}
    */
    findQuery: function(type, query) {
      var array = DS.AdapterPopulatedRecordArray.create({ type: type, query: query, content: Ember.A([]), store: this });
      var adapter = this.adapterForType(type);
  
      Ember.assert("You tried to load a query but you have no adapter (for " + type + ")", adapter);
      Ember.assert("You tried to load a query but your adapter does not implement `findQuery`", adapter.findQuery);
  
      adapter.findQuery(this, type, query, array);
  
      return array;
    },
  
    /**
      @private
  
      This method returns an array of all records adapter can find.
      It triggers the adapter's `findAll` method to give it an opportunity to populate
      the array with records of that type.
  
      @param {Class} type
      @return {DS.AdapterPopulatedRecordArray}
    */
    findAll: function(type) {
      return this.fetchAll(type, this.all(type));
    },
  
    /**
      @private
    */
    fetchAll: function(type, array) {
      var adapter = this.adapterForType(type),
          sinceToken = this.typeMapFor(type).metadata.since;
  
      set(array, 'isUpdating', true);
  
      Ember.assert("You tried to load all records but you have no adapter (for " + type + ")", adapter);
      Ember.assert("You tried to load all records but your adapter does not implement `findAll`", adapter.findAll);
  
      adapter.findAll(this, type, sinceToken);
  
      return array;
    },
  
    /**
    */
    metaForType: function(type, property, data) {
      var target = this.typeMapFor(type).metadata;
      set(target, property, data);
    },
  
    /**
    */
    didUpdateAll: function(type) {
      var findAllCache = this.typeMapFor(type).findAllCache;
      set(findAllCache, 'isUpdating', false);
    },
  
    /**
      This method returns a filtered array that contains all of the known records
      for a given type.
  
      Note that because it's just a filter, it will have any locally
      created records of the type.
  
      Also note that multiple calls to `all` for a given type will always
      return the same RecordArray.
  
      @method all
      @param {Class} type
      @return {DS.RecordArray}
    */
    all: function(type) {
      var typeMap = this.typeMapFor(type),
          findAllCache = typeMap.findAllCache;
  
      if (findAllCache) { return findAllCache; }
  
      var array = DS.RecordArray.create({
        type: type,
        content: Ember.A([]),
        store: this,
        isLoaded: true
      });
  
      this.recordArrayManager.registerFilteredRecordArray(array, type);
  
      typeMap.findAllCache = array;
      return array;
    },
  
    /**
      Takes a type and filter function, and returns a live RecordArray that
      remains up to date as new records are loaded into the store or created
      locally.
  
      The callback function takes a materialized record, and returns true
      if the record should be included in the filter and false if it should
      not.
  
      The filter function is called once on all records for the type when
      it is created, and then once on each newly loaded or created record.
  
      If any of a record's properties change, or if it changes state, the
      filter function will be invoked again to determine whether it should
      still be in the array.
  
      Note that the existence of a filter on a type will trigger immediate
      materialization of all loaded data for a given type, so you might
      not want to use filters for a type if you are loading many records
      into the store, many of which are not active at any given time.
  
      In this scenario, you might want to consider filtering the raw
      data before loading it into the store.
  
      @method filter
      @param {Class} type
      @param {Function} filter
      @return {DS.FilteredRecordArray}
    */
    filter: function(type, query, filter) {
      // allow an optional server query
      if (arguments.length === 3) {
        this.findQuery(type, query);
      } else if (arguments.length === 2) {
        filter = query;
      }
  
      var array = DS.FilteredRecordArray.create({
        type: type,
        content: Ember.A([]),
        store: this,
        manager: this.recordArrayManager,
        filterFunction: filter
      });
  
      this.recordArrayManager.registerFilteredRecordArray(array, type, filter);
  
      return array;
    },
  
    /**
      This method returns if a certain record is already loaded
      in the store. Use this function to know beforehand if a find()
      will result in a request or that it will be a cache hit.
  
      @param {Class} type
      @param {string} id
      @return {boolean}
    */
    recordIsLoaded: function(type, id) {
      if (!this.hasReferenceForId(type, id)) { return false; }
      return typeof this.referenceForId(type, id).data === 'object';
    },
  
    // ............
    // . UPDATING .
    // ............
  
    /**
      @private
  
      If the adapter updates attributes or acknowledges creation
      or deletion, the record will notify the store to update its
      membership in any filters.
  
      To avoid thrashing, this method is invoked only once per
      run loop per record.
  
      @param {Class} type
      @param {Number|String} clientId
      @param {DS.Model} record
    */
    dataWasUpdated: function(type, reference, record) {
      // Because data updates are invoked at the end of the run loop,
      // it is possible that a record might be deleted after its data
      // has been modified and this method was scheduled to be called.
      //
      // If that's the case, the record would have already been removed
      // from all record arrays; calling updateRecordArrays would just
      // add it back. If the record is deleted, just bail. It shouldn't
      // give us any more trouble after this.
  
      if (get(record, 'isDeleted')) { return; }
  
      if (typeof reference.data === "object") {
        this.recordArrayManager.referenceDidChange(reference);
      }
    },
  
    // ..............
    // . PERSISTING .
    // ..............
  
    /**
      This method delegates saving to the store's implicit
      transaction.
  
      Calling this method is essentially a request to persist
      any changes to records that were not explicitly added to
      a transaction.
    */
    save: function() {
      once(this, 'commitDefaultTransaction');
    },
    commit: Ember.aliasMethod('save'),
  
    commitDefaultTransaction: function() {
      get(this, 'defaultTransaction').commit();
    },
  
    scheduleSave: function(record) {
      get(this, 'currentTransaction').add(record);
      once(this, 'flushSavedRecords');
    },
  
    flushSavedRecords: function() {
      get(this, 'currentTransaction').commit();
      set(this, 'currentTransaction', this.transaction());
    },
  
    /**
      Adapters should call this method if they would like to acknowledge
      that all changes related to a record (other than relationship
      changes) have persisted.
  
      Because relationship changes affect multiple records, the adapter
      is responsible for acknowledging the change to the relationship
      directly (using `store.didUpdateRelationship`) when all aspects
      of the relationship change have persisted.
  
      It can be called for created, deleted or updated records.
  
      If the adapter supplies new data, that data will become the new
      canonical data for the record. That will result in blowing away
      all local changes and rematerializing the record with the new
      data (the "sledgehammer" approach).
  
      Alternatively, if the adapter does not supply new data, the record
      will collapse all local changes into its saved data. Subsequent
      rollbacks of the record will roll back to this point.
  
      If an adapter is acknowledging receipt of a newly created record
      that did not generate an id in the client, it *must* either
      provide data or explicitly invoke `store.didReceiveId` with
      the server-provided id.
  
      Note that an adapter may not supply new data when acknowledging
      a deleted record.
  
      @see DS.Store#didUpdateRelationship
  
      @param {DS.Model} record the in-flight record
      @param {Object} data optional data (see above)
    */
    didSaveRecord: function(record, data) {
      if (data) {
        this.updateId(record, data);
        this.updateRecordData(record, data);
      } else {
        this.didUpdateAttributes(record);
      }
  
      record.adapterDidCommit();
    },
  
    /**
      For convenience, if an adapter is performing a bulk commit, it can also
      acknowledge all of the records at once.
  
      If the adapter supplies an array of data, they must be in the same order as
      the array of records passed in as the first parameter.
  
      @param {#forEach} list a list of records whose changes the
        adapter is acknowledging. You can pass any object that
        has an ES5-like `forEach` method, including the
        `OrderedSet` objects passed into the adapter at commit
        time.
      @param {Array[Object]} dataList an Array of data. This
        parameter must be an integer-indexed Array-like.
    */
    didSaveRecords: function(list, dataList) {
      var i = 0;
      forEach(list, function(record) {
        this.didSaveRecord(record, dataList && dataList[i++]);
      }, this);
    },
  
    /**
      This method allows the adapter to specify that a record
      could not be saved because it had backend-supplied validation
      errors.
  
      The errors object must have keys that correspond to the
      attribute names. Once each of the specified attributes have
      changed, the record will automatically move out of the
      invalid state and be ready to commit again.
  
      TODO: We should probably automate the process of converting
      server names to attribute names using the existing serializer
      infrastructure.
  
      @param {DS.Model} record
      @param {Object} errors
    */
    recordWasInvalid: function(record, errors) {
      record.adapterDidInvalidate(errors);
    },
  
    /**
       This method allows the adapter to specify that a record
       could not be saved because the server returned an unhandled
       error.
  
       @param {DS.Model} record
    */
    recordWasError: function(record) {
      record.adapterDidError();
    },
  
    /**
      This is a lower-level API than `didSaveRecord` that allows an
      adapter to acknowledge the persistence of a single attribute.
  
      This is useful if an adapter needs to make multiple asynchronous
      calls to fully persist a record. The record will keep track of
      which attributes and relationships are still outstanding and
      automatically move into the `saved` state once the adapter has
      acknowledged everything.
  
      If a value is provided, it clobbers the locally specified value.
      Otherwise, the local value becomes the record's last known
      saved value (which is used when rolling back a record).
  
      Note that the specified attributeName is the normalized name
      specified in the definition of the `DS.Model`, not a key in
      the server-provided data.
  
      Also note that the adapter is responsible for performing any
      transformations on the value using the serializer API.
  
      @param {DS.Model} record
      @param {String} attributeName
      @param {Object} value
    */
    didUpdateAttribute: function(record, attributeName, value) {
      record.adapterDidUpdateAttribute(attributeName, value);
    },
  
    /**
      This method allows an adapter to acknowledge persistence
      of all attributes of a record but not relationships or
      other factors.
  
      It loops through the record's defined attributes and
      notifies the record that they are all acknowledged.
  
      This method does not take optional values, because
      the adapter is unlikely to have a hash of normalized
      keys and transformed values, and instead of building
      one up, it should just call `didUpdateAttribute` as
      needed.
  
      This method is intended as a middle-ground between
      `didSaveRecord`, which acknowledges all changes to
      a record, and `didUpdateAttribute`, which allows an
      adapter fine-grained control over updates.
  
      @param {DS.Model} record
    */
    didUpdateAttributes: function(record) {
      record.eachAttribute(function(attributeName) {
        this.didUpdateAttribute(record, attributeName);
      }, this);
    },
  
    /**
      This allows an adapter to acknowledge that it has saved all
      necessary aspects of a relationship change.
  
      This is separated from acknowledging the record itself
      (via `didSaveRecord`) because a relationship change can
      involve as many as three separate records. Records should
      only move out of the in-flight state once the server has
      acknowledged all of their relationships, and this differs
      based upon the adapter's semantics.
  
      There are three basic scenarios by which an adapter can
      save a relationship.
  
      ### Foreign Key
  
      An adapter can save all relationship changes by updating
      a foreign key on the child record. If it does this, it
      should acknowledge the changes when the child record is
      saved.
  
          record.eachRelationship(function(name, meta) {
            if (meta.kind === 'belongsTo') {
              store.didUpdateRelationship(record, name);
            }
          });
  
          store.didSaveRecord(record, data);
  
      ### Embedded in Parent
  
      An adapter can save one-to-many relationships by embedding
      IDs (or records) in the parent object. In this case, the
      relationship is not considered acknowledged until both the
      old parent and new parent have acknowledged the change.
  
      In this case, the adapter should keep track of the old
      parent and new parent, and acknowledge the relationship
      change once both have acknowledged. If one of the two
      sides does not exist (e.g. the new parent does not exist
      because of nulling out the belongs-to relationship),
      the adapter should acknowledge the relationship once
      the other side has acknowledged.
  
      ### Separate Entity
  
      An adapter can save relationships as separate entities
      on the server. In this case, they should acknowledge
      the relationship as saved once the server has
      acknowledged the entity.
  
      @see DS.Store#didSaveRecord
  
      @param {DS.Model} record
      @param {DS.Model} relationshipName
    */
    didUpdateRelationship: function(record, relationshipName) {
      var clientId = get(record, '_reference').clientId;
  
      var relationship = this.relationshipChangeFor(clientId, relationshipName);
      //TODO(Igor)
      if (relationship) { relationship.adapterDidUpdate(); }
    },
  
    /**
      This allows an adapter to acknowledge all relationship changes
      for a given record.
  
      Like `didUpdateAttributes`, this is intended as a middle ground
      between `didSaveRecord` and fine-grained control via the
      `didUpdateRelationship` API.
    */
    didUpdateRelationships: function(record) {
      var changes = this.relationshipChangesFor(get(record, '_reference'));
  
      for (var name in changes) {
        if (!changes.hasOwnProperty(name)) { continue; }
        changes[name].adapterDidUpdate();
      }
    },
  
    /**
      When acknowledging the creation of a locally created record,
      adapters must supply an id (if they did not implement
      `generateIdForRecord` to generate an id locally).
  
      If an adapter does not use `didSaveRecord` and supply a hash
      (for example, if it needs to make multiple HTTP requests to
      create and then update the record), it will need to invoke
      `didReceiveId` with the backend-supplied id.
  
      When not using `didSaveRecord`, an adapter will need to
      invoke:
  
      * didReceiveId (unless the id was generated locally)
      * didCreateRecord
      * didUpdateAttribute(s)
      * didUpdateRelationship(s)
  
      @param {DS.Model} record
      @param {Number|String} id
    */
    didReceiveId: function(record, id) {
      var typeMap = this.typeMapFor(record.constructor),
          clientId = get(record, 'clientId'),
          oldId = get(record, 'id');
  
      Ember.assert("An adapter cannot assign a new id to a record that already has an id. " + record + " had id: " + oldId + " and you tried to update it with " + id + ". This likely happened because your server returned data in response to a find or update that had a different id than the one you sent.", oldId === undefined || id === oldId);
  
      typeMap.idToCid[id] = clientId;
      this.clientIdToId[clientId] = id;
    },
  
    /**
      @private
  
      This method re-indexes the data by its clientId in the store
      and then notifies the record that it should rematerialize
      itself.
  
      @param {DS.Model} record
      @param {Object} data
    */
    updateRecordData: function(record, data) {
      get(record, '_reference').data = data;
      record.didChangeData();
    },
  
    /**
      @private
  
      If an adapter invokes `didSaveRecord` with data, this method
      extracts the id from the supplied data (using the adapter's
      `extractId()` method) and indexes the clientId with that id.
  
      @param {DS.Model} record
      @param {Object} data
    */
    updateId: function(record, data) {
      var type = record.constructor,
          typeMap = this.typeMapFor(type),
          reference = get(record, '_reference'),
          oldId = get(record, 'id'),
          id = this.preprocessData(type, data);
  
      Ember.assert("An adapter cannot assign a new id to a record that already has an id. " + record + " had id: " + oldId + " and you tried to update it with " + id + ". This likely happened because your server returned data in response to a find or update that had a different id than the one you sent.", oldId === null || id === oldId);
  
      typeMap.idToReference[id] = reference;
      reference.id = id;
    },
  
    /**
      @private
  
      This method receives opaque data provided by the adapter and
      preprocesses it, returning an ID.
  
      The actual preprocessing takes place in the adapter. If you would
      like to change the default behavior, you should override the
      appropriate hooks in `DS.Serializer`.
  
      @see {DS.Serializer}
      @return {String} id the id represented by the data
    */
    preprocessData: function(type, data) {
      return this.adapterForType(type).extractId(type, data);
    },
  
    /** @private
     Returns a map of IDs to client IDs for a given type.
    */
    typeMapFor: function(type) {
      var typeMaps = get(this, 'typeMaps'),
          guid = Ember.guidFor(type),
          typeMap;
  
      typeMap = typeMaps[guid];
  
      if (typeMap) { return typeMap; }
  
      typeMap = {
        idToReference: {},
        references: [],
        metadata: {}
      };
  
      typeMaps[guid] = typeMap;
  
      return typeMap;
    },
  
    // ................
    // . LOADING DATA .
    // ................
  
    /**
      Load new data into the store for a given id and type combination.
      If data for that record had been loaded previously, the new information
      overwrites the old.
  
      If the record you are loading data for has outstanding changes that have not
      yet been saved, an exception will be thrown.
  
      @param {DS.Model} type
      @param {String|Number} id
      @param {Object} data the data to load
    */
    load: function(type, data, prematerialized) {
      var id;
  
      if (typeof data === 'number' || typeof data === 'string') {
        id = data;
        data = prematerialized;
        prematerialized = null;
      }
  
      if (prematerialized && prematerialized.id) {
        id = prematerialized.id;
      } else if (id === undefined) {
        id = this.preprocessData(type, data);
      }
  
      id = coerceId(id);
  
      var reference = this.referenceForId(type, id);
  
      if (reference.record) {
       once(reference.record, 'loadedData');
      }
  
      reference.data = data;
      reference.prematerialized = prematerialized;
  
      this.recordArrayManager.referenceDidChange(reference);
  
      return reference;
    },
  
    loadMany: function(type, ids, dataList) {
      if (dataList === undefined) {
        dataList = ids;
        ids = map(dataList, function(data) {
          return this.preprocessData(type, data);
        }, this);
      }
  
      return map(ids, function(id, i) {
        return this.load(type, id, dataList[i]);
      }, this);
    },
  
    loadHasMany: function(record, key, ids) {
      //It looks sad to have to do the conversion in the store
      var type = record.get(key + '.type'),
          tuples = map(ids, function(id) {
            return {id: id, type: type};
          });
      record.materializeHasMany(key, tuples);
  
      // Update any existing many arrays that use the previous IDs,
      // if necessary.
      record.hasManyDidChange(key);
  
      var relationship = record.cacheFor(key);
  
      // TODO (tomdale) this assumes that loadHasMany *always* means
      // that the records for the provided IDs are loaded.
      if (relationship) {
        set(relationship, 'isLoaded', true);
        relationship.trigger('didLoad');
      }
    },
  
    /** @private
  
      Creates a new reference for a given type & ID pair. Metadata about the
      record can be stored in the reference without having to create a full-blown
      DS.Model instance.
  
      @param {DS.Model} type
      @param {String|Number} id
      @returns {Reference}
    */
    createReference: function(type, id) {
      var typeMap = this.typeMapFor(type),
          idToReference = typeMap.idToReference;
  
      Ember.assert('The id ' + id + ' has already been used with another record of type ' + type.toString() + '.', !id || !idToReference[id]);
  
      var reference = {
        id: id,
        clientId: this.clientIdCounter++,
        type: type
      };
  
      // if we're creating an item, this process will be done
      // later, once the object has been persisted.
      if (id) {
        idToReference[id] = reference;
      }
  
      typeMap.references.push(reference);
  
      return reference;
    },
  
    // ..........................
    // . RECORD MATERIALIZATION .
    // ..........................
  
    materializeRecord: function(reference) {
      var record = reference.type._create({
        id: reference.id,
        store: this,
        _reference: reference
      });
  
      reference.record = record;
  
      get(this, 'defaultTransaction').adoptRecord(record);
  
      record.loadingData();
  
      if (typeof reference.data === 'object') {
        record.loadedData();
      }
  
      return record;
    },
  
    dematerializeRecord: function(record) {
      var reference = get(record, '_reference'),
          type = reference.type,
          id = reference.id,
          typeMap = this.typeMapFor(type);
  
      record.updateRecordArrays();
  
      if (id) { delete typeMap.idToReference[id]; }
  
      var loc = indexOf(typeMap.references, reference);
      typeMap.references.splice(loc, 1);
    },
  
    willDestroy: function() {
      if (get(DS, 'defaultStore') === this) {
        set(DS, 'defaultStore', null);
      }
    },
  
    // ........................
    // . RELATIONSHIP CHANGES .
    // ........................
  
    addRelationshipChangeFor: function(clientReference, childKey, parentReference, parentKey, change) {
      var clientId = clientReference.clientId,
          parentClientId = parentReference ? parentReference.clientId : parentReference;
      var key = childKey + parentKey;
      var changes = this.relationshipChanges;
      if (!(clientId in changes)) {
        changes[clientId] = {};
      }
      if (!(parentClientId in changes[clientId])) {
        changes[clientId][parentClientId] = {};
      }
      if (!(key in changes[clientId][parentClientId])) {
        changes[clientId][parentClientId][key] = {};
      }
      changes[clientId][parentClientId][key][change.changeType] = change;
    },
  
    removeRelationshipChangeFor: function(clientReference, childKey, parentReference, parentKey, type) {
      var clientId = clientReference.clientId,
          parentClientId = parentReference ? parentReference.clientId : parentReference;
      var changes = this.relationshipChanges;
      var key = childKey + parentKey;
      if (!(clientId in changes) || !(parentClientId in changes[clientId]) || !(key in changes[clientId][parentClientId])){
        return;
      }
      delete changes[clientId][parentClientId][key][type];
    },
  
    relationshipChangeFor: function(clientReference, childKey, parentReference, parentKey, type) {
      var clientId = clientReference.clientId,
          parentClientId = parentReference ? parentReference.clientId : parentReference;
      var changes = this.relationshipChanges;
      var key = childKey + parentKey;
      if (!(clientId in changes) || !(parentClientId in changes[clientId])){
        return;
      }
      if(type){
        return changes[clientId][parentClientId][key][type];
      }
      else{
        //TODO(Igor) what if both present
        return changes[clientId][parentClientId][key]["add"] || changes[clientId][parentClientId][key]["remove"];
      }
    },
  
    relationshipChangePairsFor: function(reference){
      var toReturn = [];
  
      if( !reference ) { return toReturn; }
  
      //TODO(Igor) What about the other side
      var changesObject = this.relationshipChanges[reference.clientId];
      for (var objKey in changesObject){
        if(changesObject.hasOwnProperty(objKey)){
          for (var changeKey in changesObject[objKey]){
            if(changesObject[objKey].hasOwnProperty(changeKey)){
              toReturn.push(changesObject[objKey][changeKey]);
            }
          }
        }
      }
      return toReturn;
    },
  
    relationshipChangesFor: function(reference) {
      var toReturn = [];
  
      if( !reference ) { return toReturn; }
  
      var relationshipPairs = this.relationshipChangePairsFor(reference);
      forEach(relationshipPairs, function(pair){
        var addedChange = pair["add"];
        var removedChange = pair["remove"];
        if(addedChange){
          toReturn.push(addedChange);
        }
        if(removedChange){
          toReturn.push(removedChange);
        }
      });
      return toReturn;
    },
    // ......................
    // . PER-TYPE ADAPTERS
    // ......................
  
    adapterForType: function(type) {
      this._adaptersMap = this.createInstanceMapFor('adapters');
  
      var adapter = this._adaptersMap.get(type);
      if (adapter) { return adapter; }
  
      return this.get('_adapter');
    },
  
    // ..............................
    // . RECORD CHANGE NOTIFICATION .
    // ..............................
  
    recordAttributeDidChange: function(reference, attributeName, newValue, oldValue) {
      var record = reference.record,
          dirtySet = new Ember.OrderedSet(),
          adapter = this.adapterForType(record.constructor);
  
      if (adapter.dirtyRecordsForAttributeChange) {
        adapter.dirtyRecordsForAttributeChange(dirtySet, record, attributeName, newValue, oldValue);
      }
  
      dirtySet.forEach(function(record) {
        record.adapterDidDirty();
      });
    },
  
    recordBelongsToDidChange: function(dirtySet, child, relationship) {
      var adapter = this.adapterForType(child.constructor);
  
      if (adapter.dirtyRecordsForBelongsToChange) {
        adapter.dirtyRecordsForBelongsToChange(dirtySet, child, relationship);
      }
  
      // adapterDidDirty is called by the RelationshipChange that created
      // the dirtySet.
    },
  
    recordHasManyDidChange: function(dirtySet, parent, relationship) {
      var adapter = this.adapterForType(parent.constructor);
  
      if (adapter.dirtyRecordsForHasManyChange) {
        adapter.dirtyRecordsForHasManyChange(dirtySet, parent, relationship);
      }
  
      // adapterDidDirty is called by the RelationshipChange that created
      // the dirtySet.
    }
  });
  
  DS.Store.reopenClass({
    registerAdapter: DS._Mappable.generateMapFunctionFor('adapters', function(type, adapter, map) {
      map.set(type, adapter);
    }),
  
    transformMapKey: function(key) {
      if (typeof key === 'string') {
        var transformedKey;
        transformedKey = get(Ember.lookup, key);
        Ember.assert("Could not find model at path " + key, transformedKey);
        return transformedKey;
      } else {
        return key;
      }
    },
  
    transformMapValue: function(key, value) {
      if (Ember.Object.detect(value)) {
        return value.create();
      }
  
      return value;
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-model
  */
  
  var get = Ember.get, set = Ember.set,
      once = Ember.run.once, arrayMap = Ember.ArrayPolyfills.map;
  
  /**
    This file encapsulates the various states that a record can transition
    through during its lifecycle.
  
    ### State Manager
  
    A record's state manager explicitly tracks what state a record is in
    at any given time. For instance, if a record is newly created and has
    not yet been sent to the adapter to be saved, it would be in the
    `created.uncommitted` state.  If a record has had local modifications
    made to it that are in the process of being saved, the record would be
    in the `updated.inFlight` state. (These state paths will be explained
    in more detail below.)
  
    Events are sent by the record or its store to the record's state manager.
    How the state manager reacts to these events is dependent on which state
    it is in. In some states, certain events will be invalid and will cause
    an exception to be raised.
  
    States are hierarchical. For example, a record can be in the
    `deleted.start` state, then transition into the `deleted.inFlight` state.
    If a child state does not implement an event handler, the state manager
    will attempt to invoke the event on all parent states until the root state is
    reached. The state hierarchy of a record is described in terms of a path
    string. You can determine a record's current state by getting its manager's
    current state path:
  
        record.get('stateManager.currentPath');
        //=> "created.uncommitted"
  
    The `DS.Model` states are themselves stateless. What we mean is that,
    though each instance of a record also has a unique instance of a
    `DS.StateManager`, the hierarchical states that each of *those* points
    to is a shared data structure. For performance reasons, instead of each
    record getting its own copy of the hierarchy of states, each state
    manager points to this global, immutable shared instance. How does a
    state know which record it should be acting on?  We pass a reference to
    the current state manager as the first parameter to every method invoked
    on a state.
  
    The state manager passed as the first parameter is where you should stash
    state about the record if needed; you should never store data on the state
    object itself. If you need access to the record being acted on, you can
    retrieve the state manager's `record` property. For example, if you had
    an event handler `myEvent`:
  
        myEvent: function(manager) {
          var record = manager.get('record');
          record.doSomething();
        }
  
    For more information about state managers in general, see the Ember.js
    documentation on `Ember.StateManager`.
  
    ### Events, Flags, and Transitions
  
    A state may implement zero or more events, flags, or transitions.
  
    #### Events
  
    Events are named functions that are invoked when sent to a record. The
    state manager will first look for a method with the given name on the
    current state. If no method is found, it will search the current state's
    parent, and then its grandparent, and so on until reaching the top of
    the hierarchy. If the root is reached without an event handler being found,
    an exception will be raised. This can be very helpful when debugging new
    features.
  
    Here's an example implementation of a state with a `myEvent` event handler:
  
        aState: DS.State.create({
          myEvent: function(manager, param) {
            console.log("Received myEvent with "+param);
          }
        })
  
    To trigger this event:
  
        record.send('myEvent', 'foo');
        //=> "Received myEvent with foo"
  
    Note that an optional parameter can be sent to a record's `send()` method,
    which will be passed as the second parameter to the event handler.
  
    Events should transition to a different state if appropriate. This can be
    done by calling the state manager's `transitionTo()` method with a path to the
    desired state. The state manager will attempt to resolve the state path
    relative to the current state. If no state is found at that path, it will
    attempt to resolve it relative to the current state's parent, and then its
    parent, and so on until the root is reached. For example, imagine a hierarchy
    like this:
  
        * created
          * start <-- currentState
          * inFlight
        * updated
          * inFlight
  
    If we are currently in the `start` state, calling
    `transitionTo('inFlight')` would transition to the `created.inFlight` state,
    while calling `transitionTo('updated.inFlight')` would transition to
    the `updated.inFlight` state.
  
    Remember that *only events* should ever cause a state transition. You should
    never call `transitionTo()` from outside a state's event handler. If you are
    tempted to do so, create a new event and send that to the state manager.
  
    #### Flags
  
    Flags are Boolean values that can be used to introspect a record's current
    state in a more user-friendly way than examining its state path. For example,
    instead of doing this:
  
        var statePath = record.get('stateManager.currentPath');
        if (statePath === 'created.inFlight') {
          doSomething();
        }
  
    You can say:
  
        if (record.get('isNew') && record.get('isSaving')) {
          doSomething();
        }
  
    If your state does not set a value for a given flag, the value will
    be inherited from its parent (or the first place in the state hierarchy
    where it is defined).
  
    The current set of flags are defined below. If you want to add a new flag,
    in addition to the area below, you will also need to declare it in the
    `DS.Model` class.
  
    #### Transitions
  
    Transitions are like event handlers but are called automatically upon
    entering or exiting a state. To implement a transition, just call a method
    either `enter` or `exit`:
  
        myState: DS.State.create({
          // Gets called automatically when entering
          // this state.
          enter: function(manager) {
            console.log("Entered myState");
          }
        })
  
    Note that enter and exit events are called once per transition. If the
    current state changes, but changes to another child state of the parent,
    the transition event on the parent will not be triggered.
  
    @class States
    @namespace DS
    @extends Ember.State
  */
  
  var stateProperty = Ember.computed(function(key) {
    var parent = get(this, 'parentState');
    if (parent) {
      return get(parent, key);
    }
  }).property();
  
  var hasDefinedProperties = function(object) {
    // Ignore internal property defined by simulated `Ember.create`.
    var names = Ember.keys(object);
    var i, l, name;
    for (i = 0, l = names.length; i < l; i++ ) {
      name = names[i];
      if (object.hasOwnProperty(name) && object[name]) { return true; }
    }
  
    return false;
  };
  
  var didChangeData = function(manager) {
    var record = get(manager, 'record');
    record.materializeData();
  };
  
  var willSetProperty = function(manager, context) {
    context.oldValue = get(get(manager, 'record'), context.name);
  
    var change = DS.AttributeChange.createChange(context);
    get(manager, 'record')._changesToSync[context.name] = change;
  };
  
  var didSetProperty = function(manager, context) {
    var change = get(manager, 'record')._changesToSync[context.name];
    change.value = get(get(manager, 'record'), context.name);
    change.sync();
  };
  
  DS.State = Ember.State.extend({
    isLoading: stateProperty,
    isLoaded: stateProperty,
    isReloading: stateProperty,
    isDirty: stateProperty,
    isSaving: stateProperty,
    isDeleted: stateProperty,
    isError: stateProperty,
    isNew: stateProperty,
    isValid: stateProperty,
  
    // For states that are substates of a
    // DirtyState (updated or created), it is
    // useful to be able to determine which
    // type of dirty state it is.
    dirtyType: stateProperty
  });
  
  // Implementation notes:
  //
  // Each state has a boolean value for all of the following flags:
  //
  // * isLoaded: The record has a populated `data` property. When a
  //   record is loaded via `store.find`, `isLoaded` is false
  //   until the adapter sets it. When a record is created locally,
  //   its `isLoaded` property is always true.
  // * isDirty: The record has local changes that have not yet been
  //   saved by the adapter. This includes records that have been
  //   created (but not yet saved) or deleted.
  // * isSaving: The record's transaction has been committed, but
  //   the adapter has not yet acknowledged that the changes have
  //   been persisted to the backend.
  // * isDeleted: The record was marked for deletion. When `isDeleted`
  //   is true and `isDirty` is true, the record is deleted locally
  //   but the deletion was not yet persisted. When `isSaving` is
  //   true, the change is in-flight. When both `isDirty` and
  //   `isSaving` are false, the change has persisted.
  // * isError: The adapter reported that it was unable to save
  //   local changes to the backend. This may also result in the
  //   record having its `isValid` property become false if the
  //   adapter reported that server-side validations failed.
  // * isNew: The record was created on the client and the adapter
  //   did not yet report that it was successfully saved.
  // * isValid: No client-side validations have failed and the
  //   adapter did not report any server-side validation failures.
  
  // The dirty state is a abstract state whose functionality is
  // shared between the `created` and `updated` states.
  //
  // The deleted state shares the `isDirty` flag with the
  // subclasses of `DirtyState`, but with a very different
  // implementation.
  //
  // Dirty states have three child states:
  //
  // `uncommitted`: the store has not yet handed off the record
  //   to be saved.
  // `inFlight`: the store has handed off the record to be saved,
  //   but the adapter has not yet acknowledged success.
  // `invalid`: the record has invalid information and cannot be
  //   send to the adapter yet.
  var DirtyState = DS.State.extend({
    initialState: 'uncommitted',
  
    // FLAGS
    isDirty: true,
  
    // SUBSTATES
  
    // When a record first becomes dirty, it is `uncommitted`.
    // This means that there are local pending changes, but they
    // have not yet begun to be saved, and are not invalid.
    uncommitted: DS.State.extend({
  
      // EVENTS
      willSetProperty: willSetProperty,
      didSetProperty: didSetProperty,
  
      becomeDirty: Ember.K,
  
      willCommit: function(manager) {
        manager.transitionTo('inFlight');
      },
  
      becameClean: function(manager) {
        var record = get(manager, 'record');
  
        record.withTransaction(function(t) {
          t.remove(record);
        });
        manager.transitionTo('loaded.materializing');
      },
  
      becameInvalid: function(manager) {
        manager.transitionTo('invalid');
      },
  
      rollback: function(manager) {
        get(manager, 'record').rollback();
      }
    }),
  
    // Once a record has been handed off to the adapter to be
    // saved, it is in the 'in flight' state. Changes to the
    // record cannot be made during this window.
    inFlight: DS.State.extend({
      // FLAGS
      isSaving: true,
  
      // TRANSITIONS
      enter: function(manager) {
        var record = get(manager, 'record');
  
        record.becameInFlight();
      },
  
      // EVENTS
  
      materializingData: function(manager) {
        set(manager, 'lastDirtyType', get(this, 'dirtyType'));
        manager.transitionTo('materializing');
      },
  
      didCommit: function(manager) {
        var dirtyType = get(this, 'dirtyType'),
            record = get(manager, 'record');
  
        record.withTransaction(function(t) {
          t.remove(record);
        });
  
        manager.transitionTo('saved');
        manager.send('invokeLifecycleCallbacks', dirtyType);
      },
  
      didChangeData: didChangeData,
  
      becameInvalid: function(manager, errors) {
        var record = get(manager, 'record');
  
        set(record, 'errors', errors);
  
        manager.transitionTo('invalid');
        manager.send('invokeLifecycleCallbacks');
      },
  
      becameError: function(manager) {
        manager.transitionTo('error');
        manager.send('invokeLifecycleCallbacks');
      }
    }),
  
    // A record is in the `invalid` state when its client-side
    // invalidations have failed, or if the adapter has indicated
    // the the record failed server-side invalidations.
    invalid: DS.State.extend({
      // FLAGS
      isValid: false,
  
      exit: function(manager) {
         var record = get(manager, 'record');
  
         record.withTransaction(function (t) {
           t.remove(record);
         });
       },
  
      // EVENTS
      deleteRecord: function(manager) {
        manager.transitionTo('deleted');
        get(manager, 'record').clearRelationships();
      },
  
      willSetProperty: willSetProperty,
  
      didSetProperty: function(manager, context) {
        var record = get(manager, 'record'),
            errors = get(record, 'errors'),
            key = context.name;
  
        set(errors, key, null);
  
        if (!hasDefinedProperties(errors)) {
          manager.send('becameValid');
        }
  
        didSetProperty(manager, context);
      },
  
      becomeDirty: Ember.K,
  
      rollback: function(manager) {
        manager.send('becameValid');
        manager.send('rollback');
      },
  
      becameValid: function(manager) {
        manager.transitionTo('uncommitted');
      },
  
      invokeLifecycleCallbacks: function(manager) {
        var record = get(manager, 'record');
        record.trigger('becameInvalid', record);
      }
    })
  });
  
  // The created and updated states are created outside the state
  // chart so we can reopen their substates and add mixins as
  // necessary.
  
  var createdState = DirtyState.create({
    dirtyType: 'created',
  
    // FLAGS
    isNew: true
  });
  
  var updatedState = DirtyState.create({
    dirtyType: 'updated'
  });
  
  createdState.states.uncommitted.reopen({
    deleteRecord: function(manager) {
      var record = get(manager, 'record');
  
      record.clearRelationships();
      manager.transitionTo('deleted.saved');
    }
  });
  
  createdState.states.uncommitted.reopen({
    rollback: function(manager) {
      this._super(manager);
      manager.transitionTo('deleted.saved');
    }
  });
  
  updatedState.states.uncommitted.reopen({
    deleteRecord: function(manager) {
      var record = get(manager, 'record');
  
      manager.transitionTo('deleted');
      record.clearRelationships();
    }
  });
  
  var states = {
    rootState: Ember.State.create({
      // FLAGS
      isLoading: false,
      isLoaded: false,
      isReloading: false,
      isDirty: false,
      isSaving: false,
      isDeleted: false,
      isError: false,
      isNew: false,
      isValid: true,
  
      // SUBSTATES
  
      // A record begins its lifecycle in the `empty` state.
      // If its data will come from the adapter, it will
      // transition into the `loading` state. Otherwise, if
      // the record is being created on the client, it will
      // transition into the `created` state.
      empty: DS.State.create({
        // EVENTS
        loadingData: function(manager) {
          manager.transitionTo('loading');
        },
  
        loadedData: function(manager) {
          manager.transitionTo('loaded.created');
        }
      }),
  
      // A record enters this state when the store askes
      // the adapter for its data. It remains in this state
      // until the adapter provides the requested data.
      //
      // Usually, this process is asynchronous, using an
      // XHR to retrieve the data.
      loading: DS.State.create({
        // FLAGS
        isLoading: true,
  
        // EVENTS
        loadedData: didChangeData,
  
        materializingData: function(manager) {
          manager.transitionTo('loaded.materializing.firstTime');
        },
  
        becameError: function(manager) {
          manager.transitionTo('error');
          manager.send('invokeLifecycleCallbacks');
        }
      }),
  
      // A record enters this state when its data is populated.
      // Most of a record's lifecycle is spent inside substates
      // of the `loaded` state.
      loaded: DS.State.create({
        initialState: 'saved',
  
        // FLAGS
        isLoaded: true,
  
        // SUBSTATES
  
        materializing: DS.State.create({
          // EVENTS
          willSetProperty: Ember.K,
          didSetProperty: Ember.K,
  
          didChangeData: didChangeData,
  
          finishedMaterializing: function(manager) {
            manager.transitionTo('loaded.saved');
          },
  
          // SUBSTATES
          firstTime: DS.State.create({
            // FLAGS
            isLoaded: false,
  
            exit: function(manager) {
              var record = get(manager, 'record');
  
              once(function() {
                record.trigger('didLoad');
              });
            }
          })
        }),
  
        reloading: DS.State.create({
          // FLAGS
          isReloading: true,
  
          // TRANSITIONS
          enter: function(manager) {
            var record = get(manager, 'record'),
                store = get(record, 'store');
  
            store.reloadRecord(record);
          },
  
          exit: function(manager) {
            var record = get(manager, 'record');
  
            once(record, 'trigger', 'didReload');
          },
  
          // EVENTS
          loadedData: didChangeData,
  
          materializingData: function(manager) {
            manager.transitionTo('loaded.materializing');
          }
        }),
  
        // If there are no local changes to a record, it remains
        // in the `saved` state.
        saved: DS.State.create({
          // EVENTS
          willSetProperty: willSetProperty,
          didSetProperty: didSetProperty,
  
          didChangeData: didChangeData,
          loadedData: didChangeData,
  
          reloadRecord: function(manager) {
            manager.transitionTo('loaded.reloading');
          },
  
          materializingData: function(manager) {
            manager.transitionTo('loaded.materializing');
          },
  
          becomeDirty: function(manager) {
            manager.transitionTo('updated');
          },
  
          deleteRecord: function(manager) {
            manager.transitionTo('deleted');
            get(manager, 'record').clearRelationships();
          },
  
          unloadRecord: function(manager) {
            var record = get(manager, 'record');
  
            // clear relationships before moving to deleted state
            // otherwise it fails
            record.clearRelationships();
            manager.transitionTo('deleted.saved');
          },
  
          didCommit: function(manager) {
            var record = get(manager, 'record');
  
            record.withTransaction(function(t) {
              t.remove(record);
            });
  
            manager.send('invokeLifecycleCallbacks', get(manager, 'lastDirtyType'));
          },
  
          invokeLifecycleCallbacks: function(manager, dirtyType) {
            var record = get(manager, 'record');
            if (dirtyType === 'created') {
              record.trigger('didCreate', record);
            } else {
              record.trigger('didUpdate', record);
            }
  
            record.trigger('didCommit', record);
          }
        }),
  
        // A record is in this state after it has been locally
        // created but before the adapter has indicated that
        // it has been saved.
        created: createdState,
  
        // A record is in this state if it has already been
        // saved to the server, but there are new local changes
        // that have not yet been saved.
        updated: updatedState
      }),
  
      // A record is in this state if it was deleted from the store.
      deleted: DS.State.create({
        initialState: 'uncommitted',
        dirtyType: 'deleted',
  
        // FLAGS
        isDeleted: true,
        isLoaded: true,
        isDirty: true,
  
        // TRANSITIONS
        setup: function(manager) {
          var record = get(manager, 'record'),
              store = get(record, 'store');
  
          store.recordArrayManager.remove(record);
        },
  
        // SUBSTATES
  
        // When a record is deleted, it enters the `start`
        // state. It will exit this state when the record's
        // transaction starts to commit.
        uncommitted: DS.State.create({
  
          // EVENTS
          willCommit: function(manager) {
            manager.transitionTo('inFlight');
          },
  
          rollback: function(manager) {
            get(manager, 'record').rollback();
          },
  
          becomeDirty: Ember.K,
  
          becameClean: function(manager) {
            var record = get(manager, 'record');
  
            record.withTransaction(function(t) {
              t.remove(record);
            });
            manager.transitionTo('loaded.materializing');
          }
        }),
  
        // After a record's transaction is committing, but
        // before the adapter indicates that the deletion
        // has saved to the server, a record is in the
        // `inFlight` substate of `deleted`.
        inFlight: DS.State.create({
          // FLAGS
          isSaving: true,
  
          // TRANSITIONS
          enter: function(manager) {
            var record = get(manager, 'record');
  
            record.becameInFlight();
          },
  
          // EVENTS
          didCommit: function(manager) {
            var record = get(manager, 'record');
  
            record.withTransaction(function(t) {
              t.remove(record);
            });
  
            manager.transitionTo('saved');
  
            manager.send('invokeLifecycleCallbacks');
          }
        }),
  
        // Once the adapter indicates that the deletion has
        // been saved, the record enters the `saved` substate
        // of `deleted`.
        saved: DS.State.create({
          // FLAGS
          isDirty: false,
  
          setup: function(manager) {
            var record = get(manager, 'record'),
                store = get(record, 'store');
  
            store.dematerializeRecord(record);
          },
  
          invokeLifecycleCallbacks: function(manager) {
            var record = get(manager, 'record');
            record.trigger('didDelete', record);
            record.trigger('didCommit', record);
          }
        })
      }),
  
      // If the adapter indicates that there was an unknown
      // error saving a record, the record enters the `error`
      // state.
      error: DS.State.create({
        isError: true,
  
        // EVENTS
  
        invokeLifecycleCallbacks: function(manager) {
          var record = get(manager, 'record');
          record.trigger('becameError', record);
        }
      })
    })
  };
  
  DS.StateManager = Ember.StateManager.extend({
    record: null,
    initialState: 'rootState',
    states: states,
    unhandledEvent: function(manager, originalEvent) {
      var record = manager.get('record'),
          contexts = [].slice.call(arguments, 2),
          errorMessage;
      errorMessage  = "Attempted to handle event `" + originalEvent + "` ";
      errorMessage += "on " + record.toString() + " while in state ";
      errorMessage += get(manager, 'currentState.path') + ". Called with ";
      errorMessage += arrayMap.call(contexts, function(context){
                        return Ember.inspect(context);
                      }).join(', ');
      throw new Ember.Error(errorMessage);
    }
  });
  
  })();
  
  
  
  (function() {
  var LoadPromise = DS.LoadPromise; // system/mixins/load_promise
  
  var get = Ember.get, set = Ember.set, map = Ember.EnumerableUtils.map;
  
  var retrieveFromCurrentState = Ember.computed(function(key, value) {
    return get(get(this, 'stateManager.currentState'), key);
  }).property('stateManager.currentState').readOnly();
  
  /**
  
    The model class that all Ember Data records descend from.
  
    @module data
    @submodule data-model
    @main data-model
  
    @class Model
    @namespace DS
    @extends Ember.Object
    @constructor
  */
  
  DS.Model = Ember.Object.extend(Ember.Evented, LoadPromise, {
    isLoading: retrieveFromCurrentState,
    isLoaded: retrieveFromCurrentState,
    isReloading: retrieveFromCurrentState,
    isDirty: retrieveFromCurrentState,
    isSaving: retrieveFromCurrentState,
    isDeleted: retrieveFromCurrentState,
    isError: retrieveFromCurrentState,
    isNew: retrieveFromCurrentState,
    isValid: retrieveFromCurrentState,
    dirtyType: retrieveFromCurrentState,
  
    clientId: null,
    id: null,
    transaction: null,
    stateManager: null,
    errors: null,
  
    /**
      Create a JSON representation of the record, using the serialization
      strategy of the store's adapter.
  
      @method serialize
      @param {Object} options Available options:
  
      * `includeId`: `true` if the record's ID should be included in the
        JSON representation.
  
      @returns {Object} an object whose values are primitive JSON values only
    */
    serialize: function(options) {
      var store = get(this, 'store');
      return store.serialize(this, options);
    },
  
    /**
      Use {{#crossLink "DS.JSONSerializer"}}DS.JSONSerializer{{/crossLink}} to
      get the JSON representation of a record.
  
      @method toJSON
      @param {Object} options Available options:
  
      * `includeId`: `true` if the record's ID should be included in the
        JSON representation.
  
      @returns {Object} A JSON representation of the object.
    */
    toJSON: function(options) {
      var serializer = DS.JSONSerializer.create();
      return serializer.serialize(this, options);
    },
  
    /**
      Fired when the record is loaded from the server.
  
      @event didLoad
    */
    didLoad: Ember.K,
  
    /**
      Fired when the record is reloaded from the server.
  
      @event didReload
    */
    didReload: Ember.K,
  
    /**
      Fired when the record is updated.
  
      @event didUpdate
    */
    didUpdate: Ember.K,
  
    /**
      Fired when the record is created.
  
      @event didCreate
    */
    didCreate: Ember.K,
  
    /**
      Fired when the record is deleted.
  
      @event didDelete
    */
    didDelete: Ember.K,
  
    /**
      Fired when the record becomes invalid.
  
      @event becameInvalid
    */
    becameInvalid: Ember.K,
  
    /**
      Fired when the record enters the error state.
  
      @event becameError
    */
    becameError: Ember.K,
  
    data: Ember.computed(function() {
      if (!this._data) {
        this.setupData();
      }
  
      return this._data;
    }).property(),
  
    materializeData: function() {
      this.send('materializingData');
  
      get(this, 'store').materializeData(this);
  
      this.suspendRelationshipObservers(function() {
        this.notifyPropertyChange('data');
      });
    },
  
    _data: null,
  
    init: function() {
      this._super();
  
      var stateManager = DS.StateManager.create({ record: this });
      set(this, 'stateManager', stateManager);
  
      this._setup();
  
      stateManager.goToState('empty');
    },
  
    _setup: function() {
      this._changesToSync = {};
    },
  
    send: function(name, context) {
      return get(this, 'stateManager').send(name, context);
    },
  
    withTransaction: function(fn) {
      var transaction = get(this, 'transaction');
      if (transaction) { fn(transaction); }
    },
  
    loadingData: function() {
      this.send('loadingData');
    },
  
    loadedData: function() {
      this.send('loadedData');
    },
  
    didChangeData: function() {
      this.send('didChangeData');
    },
  
    deleteRecord: function() {
      this.send('deleteRecord');
    },
  
    unloadRecord: function() {
      Ember.assert("You can only unload a loaded, non-dirty record.", !get(this, 'isDirty'));
  
      this.send('unloadRecord');
    },
  
    clearRelationships: function() {
      this.eachRelationship(function(name, relationship) {
        if (relationship.kind === 'belongsTo') {
          set(this, name, null);
        } else if (relationship.kind === 'hasMany') {
          this.clearHasMany(relationship);
        }
      }, this);
    },
  
    updateRecordArrays: function() {
      var store = get(this, 'store');
      if (store) {
        store.dataWasUpdated(this.constructor, get(this, '_reference'), this);
      }
    },
  
    /**
      If the adapter did not return a hash in response to a commit,
      merge the changed attributes and relationships into the existing
      saved data.
    */
    adapterDidCommit: function() {
      var attributes = get(this, 'data').attributes;
  
      get(this.constructor, 'attributes').forEach(function(name, meta) {
        attributes[name] = get(this, name);
      }, this);
  
      this.send('didCommit');
      this.updateRecordArraysLater();
    },
  
    adapterDidDirty: function() {
      this.send('becomeDirty');
      this.updateRecordArraysLater();
    },
  
    dataDidChange: Ember.observer(function() {
      this.reloadHasManys();
      this.send('finishedMaterializing');
    }, 'data'),
  
    reloadHasManys: function() {
      var relationships = get(this.constructor, 'relationshipsByName');
      this.updateRecordArraysLater();
      relationships.forEach(function(name, relationship) {
        if (relationship.kind === 'hasMany') {
          this.hasManyDidChange(relationship.key);
        }
      }, this);
    },
  
    hasManyDidChange: function(key) {
      var cachedValue = this.cacheFor(key);
  
      if (cachedValue) {
        var type = get(this.constructor, 'relationshipsByName').get(key).type;
        var store = get(this, 'store');
        var ids = this._data.hasMany[key] || [];
  
        var references = map(ids, function(id) {
          if (typeof id === 'object') {
            if( id.clientId ) {
              // if it was already a reference, return the reference
              return id;
            } else {
              // <id, type> tuple for a polymorphic association.
              return store.referenceForId(id.type, id.id);
            }
          }
          return store.referenceForId(type, id);
        });
  
        set(cachedValue, 'content', Ember.A(references));
      }
    },
  
    updateRecordArraysLater: function() {
      Ember.run.once(this, this.updateRecordArrays);
    },
  
    setupData: function() {
      this._data = {
        attributes: {},
        belongsTo: {},
        hasMany: {},
        id: null
      };
    },
  
    materializeId: function(id) {
      set(this, 'id', id);
    },
  
    materializeAttributes: function(attributes) {
      Ember.assert("Must pass a hash of attributes to materializeAttributes", !!attributes);
      this._data.attributes = attributes;
    },
  
    materializeAttribute: function(name, value) {
      this._data.attributes[name] = value;
    },
  
    materializeHasMany: function(name, tuplesOrReferencesOrOpaque) {
      var tuplesOrReferencesOrOpaqueType = typeof tuplesOrReferencesOrOpaque;
  
      if (tuplesOrReferencesOrOpaque && tuplesOrReferencesOrOpaqueType !== 'string' && tuplesOrReferencesOrOpaque.length > 1) {
        Ember.assert('materializeHasMany expects tuples, references or opaque token, not ' + tuplesOrReferencesOrOpaque[0], tuplesOrReferencesOrOpaque[0].hasOwnProperty('id') && tuplesOrReferencesOrOpaque[0].type);
      }
  
      if( tuplesOrReferencesOrOpaqueType === "string" ) {
        this._data.hasMany[name] = tuplesOrReferencesOrOpaque;
      } else {
        var references = tuplesOrReferencesOrOpaque;
  
        if (tuplesOrReferencesOrOpaque && Ember.isArray(tuplesOrReferencesOrOpaque)) {
          references = this._convertTuplesToReferences(tuplesOrReferencesOrOpaque);
        }
  
        this._data.hasMany[name] = references;
      }
    },
  
    materializeBelongsTo: function(name, tupleOrReference) {
      if (tupleOrReference) { Ember.assert('materializeBelongsTo expects a tuple or a reference, not a ' + tupleOrReference, !tupleOrReference || (tupleOrReference.hasOwnProperty('id') && tupleOrReference.hasOwnProperty('type'))); }
  
      this._data.belongsTo[name] = tupleOrReference;
    },
  
    _convertTuplesToReferences: function(tuplesOrReferences) {
      return map(tuplesOrReferences, function(tupleOrReference) {
        return this._convertTupleToReference(tupleOrReference);
      }, this);
    },
  
    _convertTupleToReference: function(tupleOrReference) {
      var store = get(this, 'store');
      if(tupleOrReference.clientId) {
        return tupleOrReference;
      } else {
        return store.referenceForId(tupleOrReference.type, tupleOrReference.id);
      }
    },
  
    rollback: function() {
      this._setup();
      this.send('becameClean');
  
      this.suspendRelationshipObservers(function() {
        this.notifyPropertyChange('data');
      });
    },
  
    toStringExtension: function() {
      return get(this, 'id');
    },
  
    /**
      @private
  
      The goal of this method is to temporarily disable specific observers
      that take action in response to application changes.
  
      This allows the system to make changes (such as materialization and
      rollback) that should not trigger secondary behavior (such as setting an
      inverse relationship or marking records as dirty).
  
      The specific implementation will likely change as Ember proper provides
      better infrastructure for suspending groups of observers, and if Array
      observation becomes more unified with regular observers.
    */
    suspendRelationshipObservers: function(callback, binding) {
      var observers = get(this.constructor, 'relationshipNames').belongsTo;
      var self = this;
  
      try {
        this._suspendedRelationships = true;
        Ember._suspendObservers(self, observers, null, 'belongsToDidChange', function() {
          Ember._suspendBeforeObservers(self, observers, null, 'belongsToWillChange', function() {
            callback.call(binding || self);
          });
        });
      } finally {
        this._suspendedRelationships = false;
      }
    },
  
    becameInFlight: function() {
    },
  
    /**
      @private
  
    */
    resolveOn: function(successEvent) {
      var model = this;
  
      return new Ember.RSVP.Promise(function(resolve, reject) {
        function success() {
          this.off('becameError', error);
          this.off('becameInvalid', error);
          resolve(this);
        }
        function error() {
          this.off(successEvent, success);
          reject(this);
        }
  
        model.one(successEvent, success);
        model.one('becameError', error);
        model.one('becameInvalid', error);
      });
    },
  
    /**
      Save the record.
  
      @method save
    */
    save: function() {
      this.get('store').scheduleSave(this);
  
      return this.resolveOn('didCommit');
    },
  
    /**
      Reload the record from the adapter.
  
      This will only work if the record has already finished loading
      and has not yet been modified (`isLoaded` but not `isDirty`,
      or `isSaving`).
  
      @method reload
    */
    reload: function() {
      this.send('reloadRecord');
  
      return this.resolveOn('didReload');
    },
  
    // FOR USE DURING COMMIT PROCESS
  
    adapterDidUpdateAttribute: function(attributeName, value) {
  
      // If a value is passed in, update the internal attributes and clear
      // the attribute cache so it picks up the new value. Otherwise,
      // collapse the current value into the internal attributes because
      // the adapter has acknowledged it.
      if (value !== undefined) {
        get(this, 'data.attributes')[attributeName] = value;
        this.notifyPropertyChange(attributeName);
      } else {
        value = get(this, attributeName);
        get(this, 'data.attributes')[attributeName] = value;
      }
  
      this.updateRecordArraysLater();
    },
  
    adapterDidInvalidate: function(errors) {
      this.send('becameInvalid', errors);
    },
  
    adapterDidError: function() {
      this.send('becameError');
    },
  
    /**
      @private
  
      Override the default event firing from Ember.Evented to
      also call methods with the given name.
    */
    trigger: function(name) {
      Ember.tryInvoke(this, name, [].slice.call(arguments, 1));
      this._super.apply(this, arguments);
    }
  });
  
  // Helper function to generate store aliases.
  // This returns a function that invokes the named alias
  // on the default store, but injects the class as the
  // first parameter.
  var storeAlias = function(methodName) {
    return function() {
      var store = get(DS, 'defaultStore'),
          args = [].slice.call(arguments);
  
      args.unshift(this);
      Ember.assert("Your application does not have a 'Store' property defined. Attempts to call '" + methodName + "' on model classes will fail. Please provide one as with 'YourAppName.Store = DS.Store.extend()'", !!store);
      return store[methodName].apply(store, args);
    };
  };
  
  DS.Model.reopenClass({
  
    /** @private
      Alias DS.Model's `create` method to `_create`. This allows us to create DS.Model
      instances from within the store, but if end users accidentally call `create()`
      (instead of `createRecord()`), we can raise an error.
    */
    _create: DS.Model.create,
  
    /** @private
  
      Override the class' `create()` method to raise an error. This prevents end users
      from inadvertently calling `create()` instead of `createRecord()`. The store is
      still able to create instances by calling the `_create()` method.
    */
    create: function() {
      throw new Ember.Error("You should not call `create` on a model. Instead, call `createRecord` with the attributes you would like to set.");
    },
  
    /**
      See {{#crossLink "DS.Store/find:method"}}`DS.Store.find()`{{/crossLink}}.
  
      @method find
      @param {Object|String|Array|null} query A query to find records by.
  
    */
    find: storeAlias('find'),
  
    /**
      See {{#crossLink "DS.Store/all:method"}}`DS.Store.all()`{{/crossLink}}.
  
      @method all
      @return {DS.RecordArray}
    */
    all: storeAlias('all'),
  
    /**
      See {{#crossLink "DS.Store/findQuery:method"}}`DS.Store.findQuery()`{{/crossLink}}.
  
      @method query
      @param {Object} query an opaque query to be used by the adapter
      @return {DS.AdapterPopulatedRecordArray}
    */
    query: storeAlias('findQuery'),
  
    /**
      See {{#crossLink "DS.Store/filter:method"}}`DS.Store.filter()`{{/crossLink}}.
  
      @method filter
      @param {Function} filter
      @return {DS.FilteredRecordArray}
    */
    filter: storeAlias('filter'),
  
    /**
      See {{#crossLink "DS.Store/createRecord:method"}}`DS.Store.createRecord()`{{/crossLink}}.
  
      @method createRecord
      @param {Object} properties a hash of properties to set on the
        newly created record.
      @returns DS.Model
    */
    createRecord: storeAlias('createRecord')
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-model
  */
  
  var get = Ember.get;
  
  DS.Model.reopenClass({
    attributes: Ember.computed(function() {
      var map = Ember.Map.create();
  
      this.eachComputedProperty(function(name, meta) {
        if (meta.isAttribute) {
          Ember.assert("You may not set `id` as an attribute on your model. Please remove any lines that look like: `id: DS.attr('<type>')` from " + this.toString(), name !== 'id');
  
          meta.name = name;
          map.set(name, meta);
        }
      });
  
      return map;
    })
  });
  
  
  DS.Model.reopen({
    eachAttribute: function(callback, binding) {
      get(this.constructor, 'attributes').forEach(function(name, meta) {
        callback.call(binding, name, meta);
      }, binding);
    },
  
    attributeWillChange: Ember.beforeObserver(function(record, key) {
      var reference = get(record, '_reference'),
          store = get(record, 'store');
  
      record.send('willSetProperty', { reference: reference, store: store, name: key });
    }),
  
    attributeDidChange: Ember.observer(function(record, key) {
      record.send('didSetProperty', { name: key });
    })
  });
  
  function getAttr(record, options, key) {
    var attributes = get(record, 'data').attributes;
    var value = attributes[key];
  
    if (value === undefined) {
      if (typeof options.defaultValue === "function") {
        value = options.defaultValue();
      } else {
        value = options.defaultValue;
      }
    }
  
    return value;
  }
  
  DS.attr = function(type, options) {
    options = options || {};
  
    var meta = {
      type: type,
      isAttribute: true,
      options: options
    };
  
    return Ember.computed(function(key, value, oldValue) {
      if (arguments.length > 1) {
        Ember.assert("You may not set `id` as an attribute on your model. Please remove any lines that look like: `id: DS.attr('<type>')` from " + this.constructor.toString(), key !== 'id');
      } else {
        value = getAttr(this, options, key);
      }
  
      return value;
    // `data` is never set directly. However, it may be
    // invalidated from the state manager's setData
    // event.
    }).property('data').meta(meta);
  };
  
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-model
  */
  
  })();
  
  
  
  (function() {
  /**
    An AttributeChange object is created whenever a record's
    attribute changes value. It is used to track changes to a
    record between transaction commits.
  */
  
  var AttributeChange = DS.AttributeChange = function(options) {
    this.reference = options.reference;
    this.store = options.store;
    this.name = options.name;
    this.oldValue = options.oldValue;
  };
  
  AttributeChange.createChange = function(options) {
    return new AttributeChange(options);
  };
  
  AttributeChange.prototype = {
    sync: function() {
      this.store.recordAttributeDidChange(this.reference, this.name, this.value, this.oldValue);
  
      // TODO: Use this object in the commit process
      this.destroy();
    },
  
    /**
     If the AttributeChange is destroyed (either by being rolled back
     or being committed), remove it from the list of pending changes
     on the record.
    */
    destroy: function() {
      var record = this.reference.record;
  
      delete record._changesToSync[this.name];
    }
  };
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set;
  var forEach = Ember.EnumerableUtils.forEach;
  
  DS.RelationshipChange = function(options) {
    this.parentReference = options.parentReference;
    this.childReference = options.childReference;
    this.firstRecordReference = options.firstRecordReference;
    this.firstRecordKind = options.firstRecordKind;
    this.firstRecordName = options.firstRecordName;
    this.secondRecordReference = options.secondRecordReference;
    this.secondRecordKind = options.secondRecordKind;
    this.secondRecordName = options.secondRecordName;
    this.changeType = options.changeType;
    this.store = options.store;
  
    this.committed = {};
  };
  
  DS.RelationshipChangeAdd = function(options){
    DS.RelationshipChange.call(this, options);
  };
  
  DS.RelationshipChangeRemove = function(options){
    DS.RelationshipChange.call(this, options);
  };
  
  /** @private */
  DS.RelationshipChange.create = function(options) {
    return new DS.RelationshipChange(options);
  };
  
  /** @private */
  DS.RelationshipChangeAdd.create = function(options) {
    return new DS.RelationshipChangeAdd(options);
  };
  
  /** @private */
  DS.RelationshipChangeRemove.create = function(options) {
    return new DS.RelationshipChangeRemove(options);
  };
  
  DS.OneToManyChange = {};
  DS.OneToNoneChange = {};
  DS.ManyToNoneChange = {};
  DS.OneToOneChange = {};
  DS.ManyToManyChange = {};
  
  DS.RelationshipChange._createChange = function(options){
    if(options.changeType === "add"){
      return DS.RelationshipChangeAdd.create(options);
    }
    if(options.changeType === "remove"){
      return DS.RelationshipChangeRemove.create(options);
    }
  };
  
  
  DS.RelationshipChange.determineRelationshipType = function(recordType, knownSide){
    var knownKey = knownSide.key, key, otherKind;
    var knownKind = knownSide.kind;
  
    var inverse = recordType.inverseFor(knownKey);
  
    if (inverse){
      key = inverse.name;
      otherKind = inverse.kind;
    }
  
    if (!inverse){
      return knownKind === "belongsTo" ? "oneToNone" : "manyToNone";
    }
    else{
      if(otherKind === "belongsTo"){
        return knownKind === "belongsTo" ? "oneToOne" : "manyToOne";
      }
      else{
        return knownKind === "belongsTo" ? "oneToMany" : "manyToMany";
      }
    } 
   
  };
  
  DS.RelationshipChange.createChange = function(firstRecordReference, secondRecordReference, store, options){
    // Get the type of the child based on the child's client ID
    var firstRecordType = firstRecordReference.type, changeType;
    changeType = DS.RelationshipChange.determineRelationshipType(firstRecordType, options);
    if (changeType === "oneToMany"){
      return DS.OneToManyChange.createChange(firstRecordReference, secondRecordReference, store, options);
    }
    else if (changeType === "manyToOne"){
      return DS.OneToManyChange.createChange(secondRecordReference, firstRecordReference, store, options);
    }
    else if (changeType === "oneToNone"){
      return DS.OneToNoneChange.createChange(firstRecordReference, secondRecordReference, store, options);
    }
    else if (changeType === "manyToNone"){
      return DS.ManyToNoneChange.createChange(firstRecordReference, secondRecordReference, store, options);
    }
    else if (changeType === "oneToOne"){
      return DS.OneToOneChange.createChange(firstRecordReference, secondRecordReference, store, options);
    }
    else if (changeType === "manyToMany"){
      return DS.ManyToManyChange.createChange(firstRecordReference, secondRecordReference, store, options);
    }
  };
  
  /** @private */
  DS.OneToNoneChange.createChange = function(childReference, parentReference, store, options) {
    var key = options.key;
    var change = DS.RelationshipChange._createChange({
        parentReference: parentReference,
        childReference: childReference,
        firstRecordReference: childReference,
        store: store,
        changeType: options.changeType,
        firstRecordName: key,
        firstRecordKind: "belongsTo"
    });
  
    store.addRelationshipChangeFor(childReference, key, parentReference, null, change);
  
    return change;
  };
  
  /** @private */
  DS.ManyToNoneChange.createChange = function(childReference, parentReference, store, options) {
    var key = options.key;
    var change = DS.RelationshipChange._createChange({
        parentReference: childReference,
        childReference: parentReference,
        secondRecordReference: childReference,
        store: store,
        changeType: options.changeType,
        secondRecordName: options.key,
        secondRecordKind: "hasMany"
    });
  
    store.addRelationshipChangeFor(childReference, key, parentReference, null, change);
    return change;
  };
  
  
  /** @private */
  DS.ManyToManyChange.createChange = function(childReference, parentReference, store, options) {
    // If the name of the belongsTo side of the relationship is specified,
    // use that
    // If the type of the parent is specified, look it up on the child's type
    // definition.
    var key = options.key;
  
    var change = DS.RelationshipChange._createChange({
        parentReference: parentReference,
        childReference: childReference,
        firstRecordReference: childReference,
        secondRecordReference: parentReference,
        firstRecordKind: "hasMany",
        secondRecordKind: "hasMany",
        store: store,
        changeType: options.changeType,
        firstRecordName:  key
    });
  
    store.addRelationshipChangeFor(childReference, key, parentReference, null, change);
  
  
    return change;
  };
  
  /** @private */
  DS.OneToOneChange.createChange = function(childReference, parentReference, store, options) {
    var key;
  
    // If the name of the belongsTo side of the relationship is specified,
    // use that
    // If the type of the parent is specified, look it up on the child's type
    // definition.
    if (options.parentType) {
      key = options.parentType.inverseFor(options.key).name;
    } else if (options.key) {
      key = options.key;
    } else {
      Ember.assert("You must pass either a parentType or belongsToName option to OneToManyChange.forChildAndParent", false);
    }
  
    var change = DS.RelationshipChange._createChange({
        parentReference: parentReference,
        childReference: childReference,
        firstRecordReference: childReference,
        secondRecordReference: parentReference,
        firstRecordKind: "belongsTo",
        secondRecordKind: "belongsTo",
        store: store,
        changeType: options.changeType,
        firstRecordName:  key
    });
  
    store.addRelationshipChangeFor(childReference, key, parentReference, null, change);
  
  
    return change;
  };
  
  DS.OneToOneChange.maintainInvariant = function(options, store, childReference, key){
    if (options.changeType === "add" && store.recordIsMaterialized(childReference)) {
      var child = store.recordForReference(childReference);
      var oldParent = get(child, key);
      if (oldParent){
        var correspondingChange = DS.OneToOneChange.createChange(childReference, oldParent.get('_reference'), store, {
            parentType: options.parentType,
            hasManyName: options.hasManyName,
            changeType: "remove",
            key: options.key
          });
        store.addRelationshipChangeFor(childReference, key, options.parentReference , null, correspondingChange);
       correspondingChange.sync();
      }
    }
  };
  
  /** @private */
  DS.OneToManyChange.createChange = function(childReference, parentReference, store, options) {
    var key;
  
    // If the name of the belongsTo side of the relationship is specified,
    // use that
    // If the type of the parent is specified, look it up on the child's type
    // definition.
    if (options.parentType) {
      key = options.parentType.inverseFor(options.key).name;
      DS.OneToManyChange.maintainInvariant( options, store, childReference, key );
    } else if (options.key) {
      key = options.key;
    } else {
      Ember.assert("You must pass either a parentType or belongsToName option to OneToManyChange.forChildAndParent", false);
    }
  
    var change = DS.RelationshipChange._createChange({
        parentReference: parentReference,
        childReference: childReference,
        firstRecordReference: childReference,
        secondRecordReference: parentReference,
        firstRecordKind: "belongsTo",
        secondRecordKind: "hasMany",
        store: store,
        changeType: options.changeType,
        firstRecordName:  key
    });
  
    store.addRelationshipChangeFor(childReference, key, parentReference, change.getSecondRecordName(), change);
  
  
    return change;
  };
  
  
  DS.OneToManyChange.maintainInvariant = function(options, store, childReference, key){
    var child = childReference.record;
  
    if (options.changeType === "add" && child) {
      var oldParent = get(child, key);
      if (oldParent){
        var correspondingChange = DS.OneToManyChange.createChange(childReference, oldParent.get('_reference'), store, {
            parentType: options.parentType,
            hasManyName: options.hasManyName,
            changeType: "remove",
            key: options.key
          });
        store.addRelationshipChangeFor(childReference, key, options.parentReference, correspondingChange.getSecondRecordName(), correspondingChange);
        correspondingChange.sync();
      }
    }
  };
  
  DS.OneToManyChange.ensureSameTransaction = function(changes){
    var records = Ember.A();
    forEach(changes, function(change){
      records.addObject(change.getSecondRecord());
      records.addObject(change.getFirstRecord());
    });
  
    return DS.Transaction.ensureSameTransaction(records);
  };
  
  DS.RelationshipChange.prototype = {
  
    getSecondRecordName: function() {
      var name = this.secondRecordName, parent;
  
      if (!name) {
        parent = this.secondRecordReference;
        if (!parent) { return; }
  
        var childType = this.firstRecordReference.type;
        var inverse = childType.inverseFor(this.firstRecordName);
        this.secondRecordName = inverse.name;
      }
  
      return this.secondRecordName;
    },
  
    /**
      Get the name of the relationship on the belongsTo side.
  
      @return {String}
    */
    getFirstRecordName: function() {
      var name = this.firstRecordName;
      return name;
    },
  
    /** @private */
    destroy: function() {
      var childReference = this.childReference,
          belongsToName = this.getFirstRecordName(),
          hasManyName = this.getSecondRecordName(),
          store = this.store;
  
      store.removeRelationshipChangeFor(childReference, belongsToName, this.parentReference, hasManyName, this.changeType);
    },
  
    /** @private */
    getByReference: function(reference) {
      // return null or undefined if the original reference was null or undefined
      if (!reference) { return reference; }
  
      if (reference.record) {
        return reference.record;
      }
    },
  
    getSecondRecord: function(){
      return this.getByReference(this.secondRecordReference);
    },
  
    /** @private */
    getFirstRecord: function() {
      return this.getByReference(this.firstRecordReference);
    },
  
    /**
      @private
  
      Make sure that all three parts of the relationship change are part of
      the same transaction. If any of the three records is clean and in the
      default transaction, and the rest are in a different transaction, move
      them all into that transaction.
    */
    ensureSameTransaction: function() {
      var child = this.getFirstRecord(),
        parentRecord = this.getSecondRecord();
  
      var transaction = DS.Transaction.ensureSameTransaction([child, parentRecord]);
  
      this.transaction = transaction;
      return transaction;
    },
  
    callChangeEvents: function(){
      var child = this.getFirstRecord(),
          parentRecord = this.getSecondRecord();
  
      var dirtySet = new Ember.OrderedSet();
  
      // TODO: This implementation causes a race condition in key-value
      // stores. The fix involves buffering changes that happen while
      // a record is loading. A similar fix is required for other parts
      // of ember-data, and should be done as new infrastructure, not
      // a one-off hack. [tomhuda]
      if (parentRecord && get(parentRecord, 'isLoaded')) {
        this.store.recordHasManyDidChange(dirtySet, parentRecord, this);
      }
  
      if (child) {
        this.store.recordBelongsToDidChange(dirtySet, child, this);
      }
  
      dirtySet.forEach(function(record) {
        record.adapterDidDirty();
      });
    },
  
    coalesce: function(){
      var relationshipPairs = this.store.relationshipChangePairsFor(this.firstRecordReference);
      forEach(relationshipPairs, function(pair){
        var addedChange = pair["add"];
        var removedChange = pair["remove"];
        if(addedChange && removedChange) {
          addedChange.destroy();
          removedChange.destroy();
        }
      });
    }
  };
  
  DS.RelationshipChangeAdd.prototype = Ember.create(DS.RelationshipChange.create({}));
  DS.RelationshipChangeRemove.prototype = Ember.create(DS.RelationshipChange.create({}));
  
  DS.RelationshipChangeAdd.prototype.changeType = "add";
  DS.RelationshipChangeAdd.prototype.sync = function() {
    var secondRecordName = this.getSecondRecordName(),
        firstRecordName = this.getFirstRecordName(),
        firstRecord = this.getFirstRecord(),
        secondRecord = this.getSecondRecord();
  
    //Ember.assert("You specified a hasMany (" + hasManyName + ") on " + (!belongsToName && (newParent || oldParent || this.lastParent).constructor) + " but did not specify an inverse belongsTo on " + child.constructor, belongsToName);
    //Ember.assert("You specified a belongsTo (" + belongsToName + ") on " + child.constructor + " but did not specify an inverse hasMany on " + (!hasManyName && (newParent || oldParent || this.lastParentRecord).constructor), hasManyName);
  
    this.ensureSameTransaction();
  
    this.callChangeEvents();
  
    if (secondRecord && firstRecord) {
      if(this.secondRecordKind === "belongsTo"){
        secondRecord.suspendRelationshipObservers(function(){
          set(secondRecord, secondRecordName, firstRecord);
        });
  
       }
       else if(this.secondRecordKind === "hasMany"){
        secondRecord.suspendRelationshipObservers(function(){
          get(secondRecord, secondRecordName).addObject(firstRecord);
        });
      }
    }
  
    if (firstRecord && secondRecord && get(firstRecord, firstRecordName) !== secondRecord) {
      if(this.firstRecordKind === "belongsTo"){
        firstRecord.suspendRelationshipObservers(function(){
          set(firstRecord, firstRecordName, secondRecord);
        });
      }
      else if(this.firstRecordKind === "hasMany"){
        firstRecord.suspendRelationshipObservers(function(){
          get(firstRecord, firstRecordName).addObject(secondRecord);
        });
      }
    }
  
    this.coalesce();
  };
  
  DS.RelationshipChangeRemove.prototype.changeType = "remove";
  DS.RelationshipChangeRemove.prototype.sync = function() {
    var secondRecordName = this.getSecondRecordName(),
        firstRecordName = this.getFirstRecordName(),
        firstRecord = this.getFirstRecord(),
        secondRecord = this.getSecondRecord();
  
    //Ember.assert("You specified a hasMany (" + hasManyName + ") on " + (!belongsToName && (newParent || oldParent || this.lastParent).constructor) + " but did not specify an inverse belongsTo on " + child.constructor, belongsToName);
    //Ember.assert("You specified a belongsTo (" + belongsToName + ") on " + child.constructor + " but did not specify an inverse hasMany on " + (!hasManyName && (newParent || oldParent || this.lastParentRecord).constructor), hasManyName);
  
    this.ensureSameTransaction(firstRecord, secondRecord, secondRecordName, firstRecordName);
  
    this.callChangeEvents();
  
    if (secondRecord && firstRecord) {
      if(this.secondRecordKind === "belongsTo"){
        secondRecord.suspendRelationshipObservers(function(){
          set(secondRecord, secondRecordName, null);
        });
      }
      else if(this.secondRecordKind === "hasMany"){
        secondRecord.suspendRelationshipObservers(function(){
          get(secondRecord, secondRecordName).removeObject(firstRecord);
        });
      }
    }
  
    if (firstRecord && get(firstRecord, firstRecordName)) {
      if(this.firstRecordKind === "belongsTo"){
        firstRecord.suspendRelationshipObservers(function(){
          set(firstRecord, firstRecordName, null);
        });
       }
       else if(this.firstRecordKind === "hasMany"){
         firstRecord.suspendRelationshipObservers(function(){
          get(firstRecord, firstRecordName).removeObject(secondRecord);
        });
      }
    }
  
    this.coalesce();
  };
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-changes
  */
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set,
      isNone = Ember.isNone;
  
  DS.belongsTo = function(type, options) {
    Ember.assert("The first argument DS.belongsTo must be a model type or string, like DS.belongsTo(App.Person)", !!type && (typeof type === 'string' || DS.Model.detect(type)));
  
    options = options || {};
  
    var meta = { type: type, isRelationship: true, options: options, kind: 'belongsTo' };
  
    return Ember.computed(function(key, value) {
      if (typeof type === 'string') {
        type = get(this, type, false) || get(Ember.lookup, type);
      }
  
      if (arguments.length === 2) {
        Ember.assert("You can only add a record of " + type.toString() + " to this relationship", !value || type.detectInstance(value));
        return value === undefined ? null : value;
      }
  
      var data = get(this, 'data').belongsTo,
          store = get(this, 'store'), belongsTo;
  
      belongsTo = data[key];
  
      // TODO (tomdale) The value of the belongsTo in the data hash can be
      // one of:
      // 1. null/undefined
      // 2. a record reference
      // 3. a tuple returned by the serializer's polymorphism code
      //
      // We should really normalize #3 to be the same as #2 to reduce the
      // complexity here.
  
      if (isNone(belongsTo)) {
        return null;
      }
  
      // The data has been normalized to a record reference, so
      // just ask the store for the record for that reference,
      // materializing it if necessary.
      if (belongsTo.clientId) {
        return store.recordForReference(belongsTo);
      }
  
      // The data has been normalized into a type/id pair by the
      // serializer's polymorphism code.
      return store.findById(belongsTo.type, belongsTo.id);
    }).property('data').meta(meta);
  };
  
  /**
    These observers observe all `belongsTo` relationships on the record. See
    `relationships/ext` to see how these observers get their dependencies.
  
  */
  
  DS.Model.reopen({
    /** @private */
    belongsToWillChange: Ember.beforeObserver(function(record, key) {
      if (get(record, 'isLoaded')) {
        var oldParent = get(record, key);
  
        var childReference = get(record, '_reference'),
            store = get(record, 'store');
        if (oldParent){
          var change = DS.RelationshipChange.createChange(childReference, get(oldParent, '_reference'), store, { key: key, kind:"belongsTo", changeType: "remove" });
          change.sync();
          this._changesToSync[key] = change;
        }
      }
    }),
  
    /** @private */
    belongsToDidChange: Ember.immediateObserver(function(record, key) {
      if (get(record, 'isLoaded')) {
        var newParent = get(record, key);
        if(newParent){
          var childReference = get(record, '_reference'),
              store = get(record, 'store');
          var change = DS.RelationshipChange.createChange(childReference, get(newParent, '_reference'), store, { key: key, kind:"belongsTo", changeType: "add" });
          change.sync();
          if(this._changesToSync[key]){
            DS.OneToManyChange.ensureSameTransaction([change, this._changesToSync[key]], store);
          }
        }
      }
      delete this._changesToSync[key];
    })
  });
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set, forEach = Ember.EnumerableUtils.forEach;
  var hasRelationship = function(type, options) {
    options = options || {};
  
    var meta = { type: type, isRelationship: true, options: options, kind: 'hasMany' };
  
    return Ember.computed(function(key, value) {
      var data = get(this, 'data').hasMany,
          store = get(this, 'store'),
          ids, relationship;
  
      if (typeof type === 'string') {
        type = get(this, type, false) || get(Ember.lookup, type);
      }
  
      //ids can be references or opaque token
      //(e.g. `{url: '/relationship'}`) that will be passed to the adapter
      ids = data[key];
  
      relationship = store.findMany(type, ids, this, meta);
      set(relationship, 'owner', this);
      set(relationship, 'name', key);
      set(relationship, 'isPolymorphic', options.polymorphic);
  
      return relationship;
    }).property().meta(meta);
  };
  
  DS.hasMany = function(type, options) {
    Ember.assert("The type passed to DS.hasMany must be defined", !!type);
    return hasRelationship(type, options);
  };
  
  function clearUnmaterializedHasMany(record, relationship) {
    var data = get(record, 'data').hasMany;
  
    var references = data[relationship.key];
  
    if (!references) { return; }
  
    var inverse = record.constructor.inverseFor(relationship.key);
  
    if (inverse) {
      forEach(references, function(reference) {
        var childRecord;
  
        if (childRecord = reference.record) {
          record.suspendRelationshipObservers(function() {
            set(childRecord, inverse.name, null);
          });
        }
      });
    }
  }
  
  DS.Model.reopen({
    clearHasMany: function(relationship) {
      var hasMany = this.cacheFor(relationship.name);
  
      if (hasMany) {
        hasMany.clear();
      } else {
        clearUnmaterializedHasMany(this, relationship);
      }
    }
  });
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set;
  
  /**
    @private
  
    This file defines several extensions to the base `DS.Model` class that
    add support for one-to-many relationships.
  */
  
  DS.Model.reopen({
    // This Ember.js hook allows an object to be notified when a property
    // is defined.
    //
    // In this case, we use it to be notified when an Ember Data user defines a
    // belongs-to relationship. In that case, we need to set up observers for
    // each one, allowing us to track relationship changes and automatically
    // reflect changes in the inverse has-many array.
    //
    // This hook passes the class being set up, as well as the key and value
    // being defined. So, for example, when the user does this:
    //
    //   DS.Model.extend({
    //     parent: DS.belongsTo(App.User)
    //   });
    //
    // This hook would be called with "parent" as the key and the computed
    // property returned by `DS.belongsTo` as the value.
    didDefineProperty: function(proto, key, value) {
      // Check if the value being set is a computed property.
      if (value instanceof Ember.Descriptor) {
  
        // If it is, get the metadata for the relationship. This is
        // populated by the `DS.belongsTo` helper when it is creating
        // the computed property.
        var meta = value.meta();
  
        if (meta.isRelationship && meta.kind === 'belongsTo') {
          Ember.addObserver(proto, key, null, 'belongsToDidChange');
          Ember.addBeforeObserver(proto, key, null, 'belongsToWillChange');
        }
  
        if (meta.isAttribute) {
          Ember.addObserver(proto, key, null, 'attributeDidChange');
          Ember.addBeforeObserver(proto, key, null, 'attributeWillChange');
        }
  
        meta.parentType = proto.constructor;
      }
    }
  });
  
  /**
    These DS.Model extensions add class methods that provide relationship
    introspection abilities about relationships.
  
    A note about the computed properties contained here:
  
    **These properties are effectively sealed once called for the first time.**
    To avoid repeatedly doing expensive iteration over a model's fields, these
    values are computed once and then cached for the remainder of the runtime of
    your application.
  
    If your application needs to modify a class after its initial definition
    (for example, using `reopen()` to add additional attributes), make sure you
    do it before using your model with the store, which uses these properties
    extensively.
  */
  
  DS.Model.reopenClass({
    /**
      For a given relationship name, returns the model type of the relationship.
  
      For example, if you define a model like this:
  
          App.Post = DS.Model.extend({
            comments: DS.hasMany(App.Comment)
          });
  
      Calling `App.Post.typeForRelationship('comments')` will return `App.Comment`.
  
      @param {String} name the name of the relationship
      @return {subclass of DS.Model} the type of the relationship, or undefined
    */
    typeForRelationship: function(name) {
      var relationship = get(this, 'relationshipsByName').get(name);
      return relationship && relationship.type;
    },
  
    inverseFor: function(name) {
      var inverseType = this.typeForRelationship(name);
  
      if (!inverseType) { return null; }
  
      var options = this.metaForProperty(name).options;
      var inverseName, inverseKind;
  
      if (options.inverse) {
        inverseName = options.inverse;
        inverseKind = Ember.get(inverseType, 'relationshipsByName').get(inverseName).kind;
      } else {
        var possibleRelationships = findPossibleInverses(this, inverseType);
  
        if (possibleRelationships.length === 0) { return null; }
  
        Ember.assert("You defined the '" + name + "' relationship on " + this + ", but multiple possible inverse relationships of type " + this + " were found on " + inverseType + ".", possibleRelationships.length === 1);
  
        inverseName = possibleRelationships[0].name;
        inverseKind = possibleRelationships[0].kind;
      }
  
      function findPossibleInverses(type, inverseType, possibleRelationships) {
        possibleRelationships = possibleRelationships || [];
  
        var relationshipMap = get(inverseType, 'relationships');
        if (!relationshipMap) { return; }
  
        var relationships = relationshipMap.get(type);
        if (relationships) {
          possibleRelationships.push.apply(possibleRelationships, relationshipMap.get(type));
        }
  
        if (type.superclass) {
          findPossibleInverses(type.superclass, inverseType, possibleRelationships);
        }
  
        return possibleRelationships;
      }
  
      return {
        type: inverseType,
        name: inverseName,
        kind: inverseKind
      };
    },
  
    /**
      The model's relationships as a map, keyed on the type of the
      relationship. The value of each entry is an array containing a descriptor
      for each relationship with that type, describing the name of the relationship
      as well as the type.
  
      For example, given the following model definition:
  
          App.Blog = DS.Model.extend({
            users: DS.hasMany(App.User),
            owner: DS.belongsTo(App.User),
            posts: DS.hasMany(App.Post)
          });
  
      This computed property would return a map describing these
      relationships, like this:
  
          var relationships = Ember.get(App.Blog, 'relationships');
          relationships.get(App.User);
          //=> [ { name: 'users', kind: 'hasMany' },
          //     { name: 'owner', kind: 'belongsTo' } ]
          relationships.get(App.Post);
          //=> [ { name: 'posts', kind: 'hasMany' } ]
  
      @type Ember.Map
      @readOnly
    */
    relationships: Ember.computed(function() {
      var map = new Ember.MapWithDefault({
        defaultValue: function() { return []; }
      });
  
      // Loop through each computed property on the class
      this.eachComputedProperty(function(name, meta) {
  
        // If the computed property is a relationship, add
        // it to the map.
        if (meta.isRelationship) {
          if (typeof meta.type === 'string') {
            meta.type = Ember.get(Ember.lookup, meta.type);
          }
  
          var relationshipsForType = map.get(meta.type);
  
          relationshipsForType.push({ name: name, kind: meta.kind });
        }
      });
  
      return map;
    }),
  
    /**
      A hash containing lists of the model's relationships, grouped
      by the relationship kind. For example, given a model with this
      definition:
  
          App.Blog = DS.Model.extend({
            users: DS.hasMany(App.User),
            owner: DS.belongsTo(App.User),
  
            posts: DS.hasMany(App.Post)
          });
  
      This property would contain the following:
  
         var relationshipNames = Ember.get(App.Blog, 'relationshipNames');
         relationshipNames.hasMany;
         //=> ['users', 'posts']
         relationshipNames.belongsTo;
         //=> ['owner']
  
      @type Object
      @readOnly
    */
    relationshipNames: Ember.computed(function() {
      var names = { hasMany: [], belongsTo: [] };
  
      this.eachComputedProperty(function(name, meta) {
        if (meta.isRelationship) {
          names[meta.kind].push(name);
        }
      });
  
      return names;
    }),
  
    /**
      An array of types directly related to a model. Each type will be
      included once, regardless of the number of relationships it has with
      the model.
  
      For example, given a model with this definition:
  
          App.Blog = DS.Model.extend({
            users: DS.hasMany(App.User),
            owner: DS.belongsTo(App.User),
            posts: DS.hasMany(App.Post)
          });
  
      This property would contain the following:
  
         var relatedTypes = Ember.get(App.Blog, 'relatedTypes');
         //=> [ App.User, App.Post ]
  
      @type Ember.Array
      @readOnly
    */
    relatedTypes: Ember.computed(function() {
      var type,
          types = Ember.A([]);
  
      // Loop through each computed property on the class,
      // and create an array of the unique types involved
      // in relationships
      this.eachComputedProperty(function(name, meta) {
        if (meta.isRelationship) {
          type = meta.type;
  
          if (typeof type === 'string') {
            type = get(this, type, false) || get(Ember.lookup, type);
          }
  
          Ember.assert("You specified a hasMany (" + meta.type + ") on " + meta.parentType + " but " + meta.type + " was not found.",  type);
  
          if (!types.contains(type)) {
            Ember.assert("Trying to sideload " + name + " on " + this.toString() + " but the type doesn't exist.", !!type);
            types.push(type);
          }
        }
      });
  
      return types;
    }),
  
    /**
      A map whose keys are the relationships of a model and whose values are
      relationship descriptors.
  
      For example, given a model with this
      definition:
  
          App.Blog = DS.Model.extend({
            users: DS.hasMany(App.User),
            owner: DS.belongsTo(App.User),
  
            posts: DS.hasMany(App.Post)
          });
  
      This property would contain the following:
  
         var relationshipsByName = Ember.get(App.Blog, 'relationshipsByName');
         relationshipsByName.get('users');
         //=> { key: 'users', kind: 'hasMany', type: App.User }
         relationshipsByName.get('owner');
         //=> { key: 'owner', kind: 'belongsTo', type: App.User }
  
      @type Ember.Map
      @readOnly
    */
    relationshipsByName: Ember.computed(function() {
      var map = Ember.Map.create(), type;
  
      this.eachComputedProperty(function(name, meta) {
        if (meta.isRelationship) {
          meta.key = name;
          type = meta.type;
  
          if (typeof type === 'string') {
            type = get(this, type, false) || get(Ember.lookup, type);
            meta.type = type;
          }
  
          map.set(name, meta);
        }
      });
  
      return map;
    }),
  
    /**
      A map whose keys are the fields of the model and whose values are strings
      describing the kind of the field. A model's fields are the union of all of its
      attributes and relationships.
  
      For example:
  
          App.Blog = DS.Model.extend({
            users: DS.hasMany(App.User),
            owner: DS.belongsTo(App.User),
  
            posts: DS.hasMany(App.Post),
  
            title: DS.attr('string')
          });
  
          var fields = Ember.get(App.Blog, 'fields');
          fields.forEach(function(field, kind) {
            console.log(field, kind);
          });
  
          // prints:
          // users, hasMany
          // owner, belongsTo
          // posts, hasMany
          // title, attribute
  
      @type Ember.Map
      @readOnly
    */
    fields: Ember.computed(function() {
      var map = Ember.Map.create();
  
      this.eachComputedProperty(function(name, meta) {
        if (meta.isRelationship) {
          map.set(name, meta.kind);
        } else if (meta.isAttribute) {
          map.set(name, 'attribute');
        }
      });
  
      return map;
    }),
  
    /**
      Given a callback, iterates over each of the relationships in the model,
      invoking the callback with the name of each relationship and its relationship
      descriptor.
  
      @param {Function} callback the callback to invoke
      @param {any} binding the value to which the callback's `this` should be bound
    */
    eachRelationship: function(callback, binding) {
      get(this, 'relationshipsByName').forEach(function(name, relationship) {
        callback.call(binding, name, relationship);
      });
    },
  
    /**
      Given a callback, iterates over each of the types related to a model,
      invoking the callback with the related type's class. Each type will be
      returned just once, regardless of how many different relationships it has
      with a model.
  
      @param {Function} callback the callback to invoke
      @param {any} binding the value to which the callback's `this` should be bound
    */
    eachRelatedType: function(callback, binding) {
      get(this, 'relatedTypes').forEach(function(type) {
        callback.call(binding, type);
      });
    }
  });
  
  DS.Model.reopen({
    /**
      Given a callback, iterates over each of the relationships in the model,
      invoking the callback with the name of each relationship and its relationship
      descriptor.
  
      @param {Function} callback the callback to invoke
      @param {any} binding the value to which the callback's `this` should be bound
    */
    eachRelationship: function(callback, binding) {
      this.constructor.eachRelationship(callback, binding);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-relationships
  */
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set;
  var once = Ember.run.once;
  var forEach = Ember.EnumerableUtils.forEach;
  
  DS.RecordArrayManager = Ember.Object.extend({
    init: function() {
      this.filteredRecordArrays = Ember.MapWithDefault.create({
        defaultValue: function() { return []; }
      });
  
      this.changedReferences = [];
    },
  
    referenceDidChange: function(reference) {
      this.changedReferences.push(reference);
      once(this, this.updateRecordArrays);
    },
  
    recordArraysForReference: function(reference) {
      reference.recordArrays = reference.recordArrays || Ember.OrderedSet.create();
      return reference.recordArrays;
    },
  
    /**
      @private
  
      This method is invoked whenever data is loaded into the store
      by the adapter or updated by the adapter, or when an attribute
      changes on a record.
  
      It updates all filters that a record belongs to.
  
      To avoid thrashing, it only runs once per run loop per record.
  
      @param {Class} type
      @param {Number|String} clientId
    */
    updateRecordArrays: function() {
      forEach(this.changedReferences, function(reference) {
        var type = reference.type,
            recordArrays = this.filteredRecordArrays.get(type),
            filter;
  
        forEach(recordArrays, function(array) {
          filter = get(array, 'filterFunction');
          this.updateRecordArray(array, filter, type, reference);
        }, this);
  
        // loop through all manyArrays containing an unloaded copy of this
        // clientId and notify them that the record was loaded.
        var manyArrays = reference.loadingRecordArrays;
  
        if (manyArrays) {
          for (var i=0, l=manyArrays.length; i<l; i++) {
            manyArrays[i].loadedRecord();
          }
  
          reference.loadingRecordArrays = [];
        }
      }, this);
  
      this.changedReferences = [];
    },
  
    /**
      @private
  
      Update an individual filter.
  
      @param {DS.FilteredRecordArray} array
      @param {Function} filter
      @param {Class} type
      @param {Number|String} clientId
    */
    updateRecordArray: function(array, filter, type, reference) {
      var shouldBeInArray, record;
  
      if (!filter) {
        shouldBeInArray = true;
      } else {
        record = this.store.recordForReference(reference);
        shouldBeInArray = filter(record);
      }
  
      var recordArrays = this.recordArraysForReference(reference);
  
      if (shouldBeInArray) {
        recordArrays.add(array);
        array.addReference(reference);
      } else if (!shouldBeInArray) {
        recordArrays.remove(array);
        array.removeReference(reference);
      }
    },
  
    /**
      @private
  
      When a record is deleted, it is removed from all its
      record arrays.
  
      @param {DS.Model} record
    */
    remove: function(record) {
      var reference = get(record, '_reference');
      var recordArrays = reference.recordArrays || [];
  
      forEach(recordArrays, function(array) {
        array.removeReference(reference);
      });
    },
  
    /**
      @private
  
      This method is invoked if the `filterFunction` property is
      changed on a `DS.FilteredRecordArray`.
  
      It essentially re-runs the filter from scratch. This same
      method is invoked when the filter is created in th first place.
    */
    updateFilter: function(array, type, filter) {
      var typeMap = this.store.typeMapFor(type),
          references = typeMap.references,
          reference, data, shouldFilter, record;
  
      for (var i=0, l=references.length; i<l; i++) {
        reference = references[i];
        shouldFilter = false;
  
        data = reference.data;
  
        if (typeof data === 'object') {
          if (record = reference.record) {
            if (!get(record, 'isDeleted')) { shouldFilter = true; }
          } else {
            shouldFilter = true;
          }
  
          if (shouldFilter) {
            this.updateRecordArray(array, filter, type, reference);
          }
        }
      }
    },
  
    /**
      @private
  
      Create a `DS.ManyArray` for a type and list of record references, and index
      the `ManyArray` under each reference. This allows us to efficiently remove
      records from `ManyArray`s when they are deleted.
  
      @param {Class} type
      @param {Array} references
  
      @return {DS.ManyArray}
    */
    createManyArray: function(type, references) {
      var manyArray = DS.ManyArray.create({
        type: type,
        content: references,
        store: this.store
      });
  
      forEach(references, function(reference) {
        var arrays = this.recordArraysForReference(reference);
        arrays.add(manyArray);
      }, this);
  
      return manyArray;
    },
  
    /**
      @private
  
      Register a RecordArray for a given type to be backed by
      a filter function. This will cause the array to update
      automatically when records of that type change attribute
      values or states.
  
      @param {DS.RecordArray} array
      @param {Class} type
      @param {Function} filter
    */
    registerFilteredRecordArray: function(array, type, filter) {
      var recordArrays = this.filteredRecordArrays.get(type);
      recordArrays.push(array);
  
      this.updateFilter(array, type, filter);
    },
  
    // Internally, we maintain a map of all unloaded IDs requested by
    // a ManyArray. As the adapter loads data into the store, the
    // store notifies any interested ManyArrays. When the ManyArray's
    // total number of loading records drops to zero, it becomes
    // `isLoaded` and fires a `didLoad` event.
    registerWaitingRecordArray: function(array, reference) {
      var loadingRecordArrays = reference.loadingRecordArrays || [];
      loadingRecordArrays.push(array);
      reference.loadingRecordArrays = loadingRecordArrays;
    }
  });
  
  })();
  
  
  
  (function() {
  var get = Ember.get, set = Ember.set, map = Ember.ArrayPolyfills.map, isNone = Ember.isNone;
  
  function mustImplement(name) {
    return function() {
      throw new Ember.Error("Your serializer " + this.toString() + " does not implement the required method " + name);
    };
  }
  
  /**
    A serializer is responsible for serializing and deserializing a group of
    records.
  
    `DS.Serializer` is an abstract base class designed to help you build a
    serializer that can read to and write from any serialized form.  While most
    applications will use `DS.JSONSerializer`, which reads and writes JSON, the
    serializer architecture allows your adapter to transmit things like XML,
    strings, or custom binary data.
  
    Typically, your application's `DS.Adapter` is responsible for both creating a
    serializer as well as calling the appropriate methods when it needs to
    materialize data or serialize a record.
  
    The serializer API is designed as a series of layered hooks that you can
    override to customize any of the individual steps of serialization and
    deserialization.
  
    The hooks are organized by the three responsibilities of the serializer:
  
    1. Determining naming conventions
    2. Serializing records into a serialized form
    3. Deserializing records from a serialized form
  
    Because Ember Data lazily materializes records, the deserialization
    step, and therefore the hooks you implement, are split into two phases:
  
    1. Extraction, where the serialized forms for multiple records are
       extracted from a single payload. The IDs of each record are also
       extracted for indexing.
    2. Materialization, where a newly-created record has its attributes
       and relationships initialized based on the serialized form loaded
       by the adapter.
  
    Additionally, a serializer can convert values from their JavaScript
    versions into their serialized versions via a declarative API.
  
    ## Naming Conventions
  
    One of the most common uses of the serializer is to map attribute names
    from the serialized form to your `DS.Model`. For example, in your model,
    you may have an attribute called `firstName`:
  
    ```javascript
    App.Person = DS.Model.extend({
      firstName: DS.attr('string')
    });
    ```
  
    However, because the web API your adapter is communicating with is
    legacy, it calls this attribute `FIRST_NAME`.
  
    You can determine the attribute name used in the serialized form
    by implementing `keyForAttributeName`:
  
    ```javascript
    keyForAttributeName: function(type, name) {
      return name.underscore.toUpperCase();
    }
    ```
  
    If your attribute names are not predictable, you can re-map them
    one-by-one using the adapter's `map` API:
  
    ```javascript
    App.Adapter.map('App.Person', {
      firstName: { key: '*API_USER_FIRST_NAME*' }
    });
    ```
  
    This API will also work for relationships and primary keys. For
    example:
  
    ```javascript
    App.Adapter.map('App.Person', {
      primaryKey: '_id'
    });
    ```
  
    ## Serialization
  
    During the serialization process, a record or records are converted
    from Ember.js objects into their serialized form.
  
    These methods are designed in layers, like a delicious 7-layer
    cake (but with fewer layers).
  
    The main entry point for serialization is the `serialize`
    method, which takes the record and options.
  
    The `serialize` method is responsible for:
  
    * turning the record's attributes (`DS.attr`) into
      attributes on the JSON object.
    * optionally adding the record's ID onto the hash
    * adding relationships (`DS.hasMany` and `DS.belongsTo`)
      to the JSON object.
  
    Depending on the backend, the serializer can choose
    whether to include the `hasMany` or `belongsTo`
    relationships on the JSON hash.
  
    For very custom serialization, you can implement your
    own `serialize` method. In general, however, you will want
    to override the hooks described below.
  
    ### Adding the ID
  
    The default `serialize` will optionally call your serializer's
    `addId` method with the JSON hash it is creating, the
    record's type, and the record's ID. The `serialize` method
    will not call `addId` if the record's ID is undefined.
  
    Your adapter must specifically request ID inclusion by
    passing `{ includeId: true }` as an option to `serialize`.
  
    NOTE: You may not want to include the ID when updating an
    existing record, because your server will likely disallow
    changing an ID after it is created, and the PUT request
    itself will include the record's identification.
  
    By default, `addId` will:
  
    1. Get the primary key name for the record by calling
       the serializer's `primaryKey` with the record's type.
       Unless you override the `primaryKey` method, this
       will be `'id'`.
    2. Assign the record's ID to the primary key in the
       JSON hash being built.
  
    If your backend expects a JSON object with the primary
    key at the root, you can just override the `primaryKey`
    method on your serializer subclass.
  
    Otherwise, you can override the `addId` method for
    more specialized handling.
  
    ### Adding Attributes
  
    By default, the serializer's `serialize` method will call
    `addAttributes` with the JSON object it is creating
    and the record to serialize.
  
    The `addAttributes` method will then call `addAttribute`
    in turn, with the JSON object, the record to serialize,
    the attribute's name and its type.
  
    Finally, the `addAttribute` method will serialize the
    attribute:
  
    1. It will call `keyForAttributeName` to determine
       the key to use in the JSON hash.
    2. It will get the value from the record.
    3. It will call `serializeValue` with the attribute's
       value and attribute type to convert it into a
       JSON-compatible value. For example, it will convert a
       Date into a String.
  
    If your backend expects a JSON object with attributes as
    keys at the root, you can just override the `serializeValue`
    and `keyForAttributeName` methods in your serializer
    subclass and let the base class do the heavy lifting.
  
    If you need something more specialized, you can probably
    override `addAttribute` and let the default `addAttributes`
    handle the nitty gritty.
  
    ### Adding Relationships
  
    By default, `serialize` will call your serializer's
    `addRelationships` method with the JSON object that is
    being built and the record being serialized. The default
    implementation of this method is to loop over all of the
    relationships defined on your record type and:
  
    * If the relationship is a `DS.hasMany` relationship,
      call `addHasMany` with the JSON object, the record
      and a description of the relationship.
    * If the relationship is a `DS.belongsTo` relationship,
      call `addBelongsTo` with the JSON object, the record
      and a description of the relationship.
  
    The relationship description has the following keys:
  
    * `type`: the class of the associated information (the
      first parameter to `DS.hasMany` or `DS.belongsTo`)
    * `kind`: either `hasMany` or `belongsTo`
  
    The relationship description may get additional
    information in the future if more capabilities or
    relationship types are added. However, it will
    remain backwards-compatible, so the mere existence
    of new features should not break existing adapters.
  
    @module data
    @submodule data-serializer
    @main data-serializer
  
    @class Serializer
    @namespace DS
    @extends Ember.Object
    @constructor
  */
  
  DS.Serializer = Ember.Object.extend({
    init: function() {
      this.mappings = Ember.Map.create();
      this.aliases = Ember.Map.create();
      this.configurations = Ember.Map.create();
      this.globalConfigurations = {};
    },
  
    extract: mustImplement('extract'),
    extractMany: mustImplement('extractMany'),
    extractId: mustImplement('extractId'),
    extractAttribute: mustImplement('extractAttribute'),
    extractHasMany: mustImplement('extractHasMany'),
    extractBelongsTo: mustImplement('extractBelongsTo'),
  
    extractRecordRepresentation: function(loader, type, data, shouldSideload) {
      var prematerialized = {}, reference;
  
      if (shouldSideload) {
        reference = loader.sideload(type, data);
      } else {
        reference = loader.load(type, data);
      }
  
      this.eachEmbeddedHasMany(type, function(name, relationship) {
        var embeddedData = this.extractEmbeddedData(data, this.keyFor(relationship));
        if (!isNone(embeddedData)) {
          this.extractEmbeddedHasMany(loader, relationship, embeddedData, reference, prematerialized);
        }
      }, this);
  
      this.eachEmbeddedBelongsTo(type, function(name, relationship) {
        var embeddedData = this.extractEmbeddedData(data, this.keyFor(relationship));
        if (!isNone(embeddedData)) {
          this.extractEmbeddedBelongsTo(loader, relationship, embeddedData, reference, prematerialized);
        }
      }, this);
  
      loader.prematerialize(reference, prematerialized);
  
      return reference;
    },
  
    extractEmbeddedHasMany: function(loader, relationship, array, parent, prematerialized) {
      var references = map.call(array, function(item) {
        if (!item) { return; }
  
        var foundType = this.extractEmbeddedType(relationship, item),
            reference = this.extractRecordRepresentation(loader, foundType, item, true);
  
        // If the embedded record should also be saved back when serializing the parent,
        // make sure we set its parent since it will not have an ID.
        var embeddedType = this.embeddedType(parent.type, relationship.key);
        if (embeddedType === 'always') {
          reference.parent = parent;
        }
  
        // If the embedded children have an inverse belongs-to, set the
        // inverse to the current record in their prematerialized data.
        var parentType = relationship.parentType,
            inverse = parentType.inverseFor(relationship.key);
  
        if (inverse) {
          var inverseName = inverse.name;
          reference.prematerialized[inverseName] = parent;
        }
  
        return reference;
      }, this);
  
      prematerialized[relationship.key] = references;
    },
  
    extractEmbeddedBelongsTo: function(loader, relationship, data, parent, prematerialized) {
      var foundType = this.extractEmbeddedType(relationship, data),
          reference = this.extractRecordRepresentation(loader, foundType, data, true);
      prematerialized[relationship.key] = reference;
  
      // If the embedded record should also be saved back when serializing the parent,
      // make sure we set its parent since it will not have an ID.
      var embeddedType = this.embeddedType(parent.type, relationship.key);
      if (embeddedType === 'always') {
        reference.parent = parent;
      }
    },
  
    /**
      A hook you can use to customize how the record's type is extracted from
      the serialized data.
  
      The `extractEmbeddedType` hook is called with:
  
      * the relationship
      * the serialized representation of the record
  
      By default, it returns the type of the relationship.
  
      @method extractEmbeddedType
      @param {Object} relationship an object representing the relationship
      @param {any} data the serialized representation of the record
    */
    extractEmbeddedType: function(relationship, data) {
      return relationship.type;
    },
  
    /**
      A hook you need to implement in order to extract
      the data associated with an embedded record.
  
      @param {any} data the serialized representation of the record
      @param {String} key the key that represents the embedded record
     */
    extractEmbeddedData: mustImplement(),
  
    //.......................
    //. SERIALIZATION HOOKS
    //.......................
  
    /**
      The main entry point for serializing a record. While you can consider this
      a hook that can be overridden in your serializer, you will have to manually
      handle serialization. For most cases, there are more granular hooks that you
      can override.
  
      If overriding this method, these are the responsibilities that you will need
      to implement yourself:
  
      * If the option hash contains `includeId`, add the record's ID to the serialized form.
        By default, `serialize` calls `addId` if appropriate.
      * If the option hash contains `includeType`, add the record's type to the serialized form.
      * Add the record's attributes to the serialized form. By default, `serialize` calls
        `addAttributes`.
      * Add the record's relationships to the serialized form. By default, `serialize` calls
        `addRelationships`.
  
      @method serialize
      @param {DS.Model} record the record to serialize
      @param {Object} [options] a hash of options
      @returns {any} the serialized form of the record
    */
    serialize: function(record, options) {
      options = options || {};
  
      var serialized = this.createSerializedForm(), id;
  
      if (options.includeId) {
        if (id = get(record, 'id')) {
          this._addId(serialized, record.constructor, id);
        }
      }
  
      if (options.includeType) {
        this.addType(serialized, record.constructor);
      }
  
      this.addAttributes(serialized, record);
      this.addRelationships(serialized, record);
  
      return serialized;
    },
  
    /**
      @private
  
      Given an attribute type and value, convert the value into the
      serialized form using the transform registered for that type.
  
      @method serializeValue
      @param {any} value the value to convert to the serialized form
      @param {String} attributeType the registered type (e.g. `string`
        or `boolean`)
      @returns {any} the serialized form of the value
    */
    serializeValue: function(value, attributeType) {
      var transform = this.transforms ? this.transforms[attributeType] : null;
  
      Ember.assert("You tried to use an attribute type (" + attributeType + ") that has not been registered", transform);
      return transform.serialize(value);
    },
  
    /**
      A hook you can use to normalize IDs before adding them to the
      serialized representation.
  
      Because the store coerces all IDs to strings for consistency,
      this is the opportunity for the serializer to, for example,
      convert numerical IDs back into number form.
  
      Null or undefined ids will resolve to a null value.
  
      @param {String} id the id from the record
      @returns {any} the serialized representation of the id
    */
    serializeId: function(id) {
      if(Ember.isEmpty(id)) { return null; }
      if(isNaN(+id)) { return id; }
      return +id;
    },
  
    /**
      A hook you can use to change how attributes are added to the serialized
      representation of a record.
  
      By default, `addAttributes` simply loops over all of the attributes of the
      passed record, maps the attribute name to the key for the serialized form,
      and invokes any registered transforms on the value. It then invokes the
      more granular `addAttribute` with the key and transformed value.
  
      Since you can override `keyForAttributeName`, `addAttribute`, and register
      custom transforms, you should rarely need to override this hook.
  
      @method addAttributes
      @param {any} data the serialized representation that is being built
      @param {DS.Model} record the record to serialize
    */
    addAttributes: function(data, record) {
      record.eachAttribute(function(name, attribute) {
        this._addAttribute(data, record, name, attribute.type);
      }, this);
    },
  
    /**
      A hook you can use to customize how the key/value pair is added to
      the serialized data.
  
      @method addAttribute
      @param {any} serialized the serialized form being built
      @param {String} key the key to add to the serialized data
      @param {any} value the value to add to the serialized data
    */
    addAttribute: mustImplement('addAttribute'),
  
    /**
      A hook you can use to customize how the record's id is added to
      the serialized data.
  
      The `addId` hook is called with:
  
      * the serialized representation being built
      * the resolved primary key (taking configurations and the
        `primaryKey` hook into consideration)
      * the serialized id (after calling the `serializeId` hook)
  
      @method addId
      @param {any} data the serialized representation that is being built
      @param {String} key the resolved primary key
      @param {id} id the serialized id
    */
    addId: mustImplement('addId'),
  
    /**
      A hook you can use to customize how the record's type is added to
      the serialized data.
  
      The `addType` hook is called with:
  
      * the serialized representation being built
      * the serialized id (after calling the `serializeId` hook)
  
      @method addType
      @param {any} data the serialized representation that is being built
      @param {DS.Model subclass} type the type of the record
    */
    addType: Ember.K,
  
    /**
      Creates an empty hash that will be filled in by the hooks called from the
      `serialize()` method.
  
      @method createSerializedForm
      @return {Object}
    */
    createSerializedForm: function() {
      return {};
    },
  
    /**
      A hook you can use to change how relationships are added to the serialized
      representation of a record.
  
      By default, `addRelationships` loops over all of the relationships of the
      passed record, maps the relationship names to the key for the serialized form,
      and then invokes the public `addBelongsTo` and `addHasMany` hooks.
  
      Since you can override `keyForBelongsTo`, `keyForHasMany`, `addBelongsTo`,
      `addHasMany`, and register mappings, you should rarely need to override this
      hook.
  
      @method addRelationships
      @param {any} data the serialized representation that is being built
      @param {DS.Model} record the record to serialize
    */
    addRelationships: function(data, record) {
      record.eachRelationship(function(name, relationship) {
        if (relationship.kind === 'belongsTo') {
          this._addBelongsTo(data, record, name, relationship);
        } else if (relationship.kind === 'hasMany') {
          this._addHasMany(data, record, name, relationship);
        }
      }, this);
    },
  
    /**
      A hook you can use to add a `belongsTo` relationship to the
      serialized representation.
  
      The specifics of this hook are very adapter-specific, so there
      is no default implementation. You can see `DS.JSONSerializer`
      for an example of an implementation of the `addBelongsTo` hook.
  
      The `belongsTo` relationship object has the following properties:
  
      * **type** a subclass of DS.Model that is the type of the
        relationship. This is the first parameter to DS.belongsTo
      * **options** the options passed to the call to DS.belongsTo
      * **kind** always `belongsTo`
  
      Additional properties may be added in the future.
  
      @method addBelongsTo
      @param {any} data the serialized representation that is being built
      @param {DS.Model} record the record to serialize
      @param {String} key the key for the serialized object
      @param {Object} relationship an object representing the relationship
    */
    addBelongsTo: mustImplement('addBelongsTo'),
  
    /**
      A hook you can use to add a `hasMany` relationship to the
      serialized representation.
  
      The specifics of this hook are very adapter-specific, so there
      is no default implementation. You may not need to implement this,
      for example, if your backend only expects relationships on the
      child of a one to many relationship.
  
      The `hasMany` relationship object has the following properties:
  
      * **type** a subclass of DS.Model that is the type of the
        relationship. This is the first parameter to DS.hasMany
      * **options** the options passed to the call to DS.hasMany
      * **kind** always `hasMany`
  
      Additional properties may be added in the future.
  
      @method addHasMany
      @param {any} data the serialized representation that is being built
      @param {DS.Model} record the record to serialize
      @param {String} key the key for the serialized object
      @param {Object} relationship an object representing the relationship
    */
    addHasMany: mustImplement('addHasMany'),
  
    /**
      NAMING CONVENTIONS
  
      The most commonly overridden APIs of the serializer are
      the naming convention methods:
  
      * `keyForAttributeName`: converts a camelized attribute name
        into a key in the adapter-provided data hash. For example,
        if the model's attribute name was `firstName`, and the
        server used underscored names, you would return `first_name`.
      * `primaryKey`: returns the key that should be used to
        extract the id from the adapter-provided data hash. It is
        also used when serializing a record.
    */
  
    /**
      A hook you can use in your serializer subclass to customize
      how an unmapped attribute name is converted into a key.
  
      By default, this method returns the `name` parameter.
  
      For example, if the attribute names in your JSON are underscored,
      you will want to convert them into JavaScript conventional
      camelcase:
  
      ```javascript
      App.MySerializer = DS.Serializer.extend({
        // ...
  
        keyForAttributeName: function(type, name) {
          return name.camelize();
        }
      });
      ```
  
      @method keyForAttributeName
      @param {DS.Model subclass} type the type of the record with
        the attribute name `name`
      @param {String} name the attribute name to convert into a key
  
      @returns {String} the key
    */
    keyForAttributeName: function(type, name) {
      return name;
    },
  
    /**
      A hook you can use in your serializer to specify a conventional
      primary key.
  
      By default, this method will return the string `id`.
  
      In general, you should not override this hook to specify a special
      primary key for an individual type; use `configure` instead.
  
      For example, if your primary key is always `__id__`:
  
      ```javascript
      App.MySerializer = DS.Serializer.extend({
        // ...
        primaryKey: function(type) {
          return '__id__';
        }
      });
      ```
  
      In another example, if the primary key always includes the
      underscored version of the type before the string `id`:
  
      ```javascript
      App.MySerializer = DS.Serializer.extend({
        // ...
        primaryKey: function(type) {
          // If the type is `BlogPost`, this will return
          // `blog_post_id`.
          var typeString = type.toString().split(".")[1].underscore();
          return typeString + "_id";
        }
      });
      ```
  
      @method primaryKey
      @param {DS.Model subclass} type
      @returns {String} the primary key for the type
    */
    primaryKey: function(type) {
      return "id";
    },
  
    /**
      A hook you can use in your serializer subclass to customize
      how an unmapped `belongsTo` relationship is converted into
      a key.
  
      By default, this method calls `keyForAttributeName`, so if
      your naming convention is uniform across attributes and
      relationships, you can use the default here and override
      just `keyForAttributeName` as needed.
  
      For example, if the `belongsTo` names in your JSON always
      begin with `BT_` (e.g. `BT_posts`), you can strip out the
      `BT_` prefix:"
  
      ```javascript
      App.MySerializer = DS.Serializer.extend({
        // ...
        keyForBelongsTo: function(type, name) {
          return name.match(/^BT_(.*)$/)[1].camelize();
        }
      });
      ```
  
      @method keyForBelongsTo
      @param {DS.Model subclass} type the type of the record with
        the `belongsTo` relationship.
      @param {String} name the relationship name to convert into a key
  
      @returns {String} the key
    */
    keyForBelongsTo: function(type, name) {
      return this.keyForAttributeName(type, name);
    },
  
    /**
      A hook you can use in your serializer subclass to customize
      how an unmapped `hasMany` relationship is converted into
      a key.
  
      By default, this method calls `keyForAttributeName`, so if
      your naming convention is uniform across attributes and
      relationships, you can use the default here and override
      just `keyForAttributeName` as needed.
  
      For example, if the `hasMany` names in your JSON always
      begin with the "table name" for the current type (e.g.
      `post_comments`), you can strip out the prefix:"
  
      ```javascript
      App.MySerializer = DS.Serializer.extend({
        // ...
        keyForHasMany: function(type, name) {
          // if your App.BlogPost has many App.BlogComment, the key from
          // the server would look like: `blog_post_blog_comments`
          //
          // 1. Convert the type into a string and underscore the
          //    second part (App.BlogPost -> blog_post)
          // 2. Extract the part after `blog_post_` (`blog_comments`)
          // 3. Underscore it, to become `blogComments`
          var typeString = type.toString().split(".")[1].underscore();
          return name.match(new RegExp("^" + typeString + "_(.*)$"))[1].camelize();
        }
      });
      ```
  
      @method keyForHasMany
      @param {DS.Model subclass} type the type of the record with
        the `belongsTo` relationship.
      @param {String} name the relationship name to convert into a key
  
      @returns {String} the key
    */
    keyForHasMany: function(type, name) {
      return this.keyForAttributeName(type, name);
    },
  
    //.........................
    //. MATERIALIZATION HOOKS
    //.........................
  
    materialize: function(record, serialized, prematerialized) {
      var id;
      if (Ember.isNone(get(record, 'id'))) {
        if (prematerialized && prematerialized.hasOwnProperty('id')) {
          id = prematerialized.id;
        } else {
          id = this.extractId(record.constructor, serialized);
        }
        record.materializeId(id);
      }
  
      this.materializeAttributes(record, serialized, prematerialized);
      this.materializeRelationships(record, serialized, prematerialized);
    },
  
    deserializeValue: function(value, attributeType) {
      var transform = this.transforms ? this.transforms[attributeType] : null;
  
      Ember.assert("You tried to use an attribute type (" + attributeType + ") that has not been registered", transform);
      return transform.deserialize(value);
    },
  
    materializeAttributes: function(record, serialized, prematerialized) {
      record.eachAttribute(function(name, attribute) {
        if (prematerialized && prematerialized.hasOwnProperty(name)) {
          record.materializeAttribute(name, prematerialized[name]);
        } else {
          this.materializeAttribute(record, serialized, name, attribute.type);
        }
      }, this);
    },
  
    materializeAttribute: function(record, serialized, attributeName, attributeType) {
      var value = this.extractAttribute(record.constructor, serialized, attributeName);
      value = this.deserializeValue(value, attributeType);
  
      record.materializeAttribute(attributeName, value);
    },
  
    materializeRelationships: function(record, serialized, prematerialized) {
      record.eachRelationship(function(name, relationship) {
        if (relationship.kind === 'hasMany') {
          if (prematerialized && prematerialized.hasOwnProperty(name)) {
            var tuplesOrReferencesOrOpaque = this._convertPrematerializedHasMany(relationship.type, prematerialized[name]);
            record.materializeHasMany(name, tuplesOrReferencesOrOpaque);
          } else {
            this.materializeHasMany(name, record, serialized, relationship, prematerialized);
          }
        } else if (relationship.kind === 'belongsTo') {
          if (prematerialized && prematerialized.hasOwnProperty(name)) {
            var tupleOrReference = this._convertTuple(relationship.type, prematerialized[name]);
            record.materializeBelongsTo(name, tupleOrReference);
          } else {
            this.materializeBelongsTo(name, record, serialized, relationship, prematerialized);
          }
        }
      }, this);
    },
  
    materializeHasMany: function(name, record, hash, relationship) {
      var type = record.constructor,
          key = this._keyForHasMany(type, relationship.key),
          idsOrTuples = this.extractHasMany(type, hash, key),
          tuples = idsOrTuples;
  
      if(idsOrTuples && Ember.isArray(idsOrTuples)) {
        tuples = this._convertTuples(relationship.type, idsOrTuples);
      }
  
      record.materializeHasMany(name, tuples);
    },
  
    materializeBelongsTo: function(name, record, hash, relationship) {
      var type = record.constructor,
          key = this._keyForBelongsTo(type, relationship.key),
          idOrTuple,
          tuple = null;
  
      if(relationship.options && relationship.options.polymorphic) {
        idOrTuple = this.extractBelongsToPolymorphic(type, hash, key);
      } else {
        idOrTuple = this.extractBelongsTo(type, hash, key);
      }
  
      if(!isNone(idOrTuple)) {
        tuple = this._convertTuple(relationship.type, idOrTuple);
      }
  
      record.materializeBelongsTo(name, tuple);
    },
  
    _convertPrematerializedHasMany: function(type, prematerializedHasMany) {
      var tuplesOrReferencesOrOpaque;
      if( typeof prematerializedHasMany === 'string' ) {
        tuplesOrReferencesOrOpaque = prematerializedHasMany;
      } else {
        tuplesOrReferencesOrOpaque = this._convertTuples(type, prematerializedHasMany);
      }
      return tuplesOrReferencesOrOpaque;
    },
  
    _convertTuples: function(type, idsOrTuples) {
      return map.call(idsOrTuples, function(idOrTuple) {
        return this._convertTuple(type, idOrTuple);
      }, this);
    },
  
    _convertTuple: function(type, idOrTuple) {
      var foundType;
  
      if (typeof idOrTuple === 'object') {
        if (DS.Model.detect(idOrTuple.type)) {
          return idOrTuple;
        } else {
          foundType = this.typeFromAlias(idOrTuple.type);
          Ember.assert("Unable to resolve type " + idOrTuple.type + ".  You may need to configure your serializer aliases.", !!foundType);
  
          return {id: idOrTuple.id, type: foundType};
        }
      }
      return {id: idOrTuple, type: type};
    },
  
    /**
      @private
  
      This method is called to get the primary key for a given
      type.
  
      If a primary key configuration exists for this type, this
      method will return the configured value. Otherwise, it will
      call the public `primaryKey` hook.
  
      @method _primaryKey
      @param {DS.Model subclass} type
      @returns {String} the primary key for the type
    */
    _primaryKey: function(type) {
      var config = this.configurationForType(type),
          primaryKey = config && config.primaryKey;
  
      if (primaryKey) {
        return primaryKey;
      } else {
        return this.primaryKey(type);
      }
    },
  
    /**
      @private
  
      This method looks up the key for the attribute name and transforms the
      attribute's value using registered transforms.
  
      Specifically:
  
      1. Look up the key for the attribute name. If available, this will use
         any registered mappings. Otherwise, it will invoke the public
         `keyForAttributeName` hook.
      2. Get the value from the record using the `attributeName`.
      3. Transform the value using registered transforms for the `attributeType`.
      4. Invoke the public `addAttribute` hook with the hash, key, and
         transformed value.
  
      @method _addAttribute
      @param {any} data the serialized representation being built
      @param {DS.Model} record the record to serialize
      @param {String} attributeName the name of the attribute on the record
      @param {String} attributeType the type of the attribute (e.g. `string`
        or `boolean`)
    */
    _addAttribute: function(data, record, attributeName, attributeType) {
      var key = this._keyForAttributeName(record.constructor, attributeName);
      var value = get(record, attributeName);
  
      this.addAttribute(data, key, this.serializeValue(value, attributeType));
    },
  
    /**
      @private
  
      This method looks up the primary key for the `type` and invokes
      `serializeId` on the `id`.
  
      It then invokes the public `addId` hook with the primary key and
      the serialized id.
  
      @method _addId
      @param {any} data the serialized representation that is being built
      @param {Ember.Model subclass} type
      @param {any} id the materialized id from the record
    */
    _addId: function(hash, type, id) {
      var primaryKey = this._primaryKey(type);
  
      this.addId(hash, primaryKey, this.serializeId(id));
    },
  
    /**
      @private
  
      This method is called to get a key used in the data from
      an attribute name. It first checks for any mappings before
      calling the public hook `keyForAttributeName`.
  
      @method _keyForAttributeName
      @param {DS.Model subclass} type the type of the record with
        the attribute name `name`
      @param {String} name the attribute name to convert into a key
  
      @returns {String} the key
    */
    _keyForAttributeName: function(type, name) {
      return this._keyFromMappingOrHook('keyForAttributeName', type, name);
    },
  
    /**
      @private
  
      This method is called to get a key used in the data from
      a belongsTo relationship. It first checks for any mappings before
      calling the public hook `keyForBelongsTo`.
  
      @method _keyForBelongsTo
      @param {DS.Model subclass} type the type of the record with
        the `belongsTo` relationship.
      @param {String} name the relationship name to convert into a key
  
      @returns {String} the key
    */
    _keyForBelongsTo: function(type, name) {
      return this._keyFromMappingOrHook('keyForBelongsTo', type, name);
    },
  
    keyFor: function(description) {
      var type = description.parentType,
          name = description.key;
  
      switch (description.kind) {
        case 'belongsTo':
          return this._keyForBelongsTo(type, name);
        case 'hasMany':
          return this._keyForHasMany(type, name);
      }
    },
  
    /**
      @private
  
      This method is called to get a key used in the data from
      a hasMany relationship. It first checks for any mappings before
      calling the public hook `keyForHasMany`.
  
      @method _keyForHasMany
      @param {DS.Model subclass} type the type of the record with
        the `hasMany` relationship.
      @param {String} name the relationship name to convert into a key
  
      @returns {String} the key
    */
    _keyForHasMany: function(type, name) {
      return this._keyFromMappingOrHook('keyForHasMany', type, name);
    },
    /**
      @private
  
      This method converts the relationship name to a key for serialization,
      and then invokes the public `addBelongsTo` hook.
  
      @method _addBelongsTo
      @param {any} data the serialized representation that is being built
      @param {DS.Model} record the record to serialize
      @param {String} name the relationship name
      @param {Object} relationship an object representing the relationship
    */
    _addBelongsTo: function(data, record, name, relationship) {
      var key = this._keyForBelongsTo(record.constructor, name);
      this.addBelongsTo(data, record, key, relationship);
    },
  
    /**
      @private
  
      This method converts the relationship name to a key for serialization,
      and then invokes the public `addHasMany` hook.
  
      @method _addHasMany
      @param {any} data the serialized representation that is being built
      @param {DS.Model} record the record to serialize
      @param {String} name the relationship name
      @param {Object} relationship an object representing the relationship
    */
    _addHasMany: function(data, record, name, relationship) {
      var key = this._keyForHasMany(record.constructor, name);
      this.addHasMany(data, record, key, relationship);
    },
  
    /**
      @private
  
      An internal method that handles checking whether a mapping
      exists for a particular attribute or relationship name before
      calling the public hooks.
  
      If a mapping is found, and the mapping has a key defined,
      use that instead of invoking the hook.
  
      @method _keyFromMappingOrHook
      @param {String} publicMethod the public hook to invoke if
        a mapping is not found (e.g. `keyForAttributeName`)
      @param {DS.Model subclass} type the type of the record with
        the attribute or relationship name.
      @param {String} name the attribute or relationship name to
        convert into a key
    */
    _keyFromMappingOrHook: function(publicMethod, type, name) {
      var key = this.mappingOption(type, name, 'key');
  
      if (key) {
        return key;
      } else {
        return this[publicMethod](type, name);
      }
    },
  
    /**
      TRANSFORMS
    */
  
    registerTransform: function(type, transform) {
      this.transforms[type] = transform;
    },
  
    registerEnumTransform: function(type, objects) {
      var transform = {
        deserialize: function(serialized) {
          return Ember.A(objects).objectAt(serialized);
        },
        serialize: function(deserialized) {
          return Ember.EnumerableUtils.indexOf(objects, deserialized);
        },
        values: objects
      };
      this.registerTransform(type, transform);
    },
  
    /**
      MAPPING CONVENIENCE
    */
  
    map: function(type, mappings) {
      this.mappings.set(type, mappings);
    },
  
    configure: function(type, configuration) {
      if (type && !configuration) {
        Ember.merge(this.globalConfigurations, type);
        return;
      }
  
      var config, alias;
  
      if (configuration.alias) {
        alias = configuration.alias;
        this.aliases.set(alias, type);
        delete configuration.alias;
      }
  
      config = Ember.create(this.globalConfigurations);
      Ember.merge(config, configuration);
  
      this.configurations.set(type, config);
    },
  
    typeFromAlias: function(alias) {
      this._completeAliases();
      return this.aliases.get(alias);
    },
  
    mappingForType: function(type) {
      this._reifyMappings();
      return this.mappings.get(type) || {};
    },
  
    configurationForType: function(type) {
      this._reifyConfigurations();
      return this.configurations.get(type) || this.globalConfigurations;
    },
  
    _completeAliases: function() {
      this._pluralizeAliases();
      this._reifyAliases();
    },
  
    _pluralizeAliases: function() {
      if (this._didPluralizeAliases) { return; }
  
      var aliases = this.aliases,
          sideloadMapping = this.aliases.sideloadMapping,
          plural,
          self = this;
  
      aliases.forEach(function(key, type) {
        plural = self.pluralize(key);
        Ember.assert("The '" + key + "' alias has already been defined", !aliases.get(plural));
        aliases.set(plural, type);
      });
  
      // This map is only for backward compatibility with the `sideloadAs` option.
      if (sideloadMapping) {
        sideloadMapping.forEach(function(key, type) {
          Ember.assert("The '" + key + "' alias has already been defined", !aliases.get(key) || (aliases.get(key)===type) );
          aliases.set(key, type);
        });
        delete this.aliases.sideloadMapping;
      }
  
      this._didPluralizeAliases = true;
    },
  
    _reifyAliases: function() {
      if (this._didReifyAliases) { return; }
  
      var aliases = this.aliases,
          reifiedAliases = Ember.Map.create(),
          foundType;
  
      aliases.forEach(function(key, type) {
        if (typeof type === 'string') {
          foundType = Ember.get(Ember.lookup, type);
          Ember.assert("Could not find model at path " + key, type);
  
          reifiedAliases.set(key, foundType);
        } else {
          reifiedAliases.set(key, type);
        }
      });
  
      this.aliases = reifiedAliases;
      this._didReifyAliases = true;
    },
  
    _reifyMappings: function() {
      if (this._didReifyMappings) { return; }
  
      var mappings = this.mappings,
          reifiedMappings = Ember.Map.create();
  
      mappings.forEach(function(key, mapping) {
        if (typeof key === 'string') {
          var type = Ember.get(Ember.lookup, key);
          Ember.assert("Could not find model at path " + key, type);
  
          reifiedMappings.set(type, mapping);
        } else {
          reifiedMappings.set(key, mapping);
        }
      });
  
      this.mappings = reifiedMappings;
  
      this._didReifyMappings = true;
    },
  
    _reifyConfigurations: function() {
      if (this._didReifyConfigurations) { return; }
  
      var configurations = this.configurations,
          reifiedConfigurations = Ember.Map.create();
  
      configurations.forEach(function(key, mapping) {
        if (typeof key === 'string' && key !== 'plurals') {
          var type = Ember.get(Ember.lookup, key);
          Ember.assert("Could not find model at path " + key, type);
  
          reifiedConfigurations.set(type, mapping);
        } else {
          reifiedConfigurations.set(key, mapping);
        }
      });
  
      this.configurations = reifiedConfigurations;
  
      this._didReifyConfigurations = true;
    },
  
    mappingOption: function(type, name, option) {
      var mapping = this.mappingForType(type)[name];
  
      return mapping && mapping[option];
    },
  
    configOption: function(type, option) {
      var config = this.configurationForType(type);
  
      return config[option];
    },
  
    // EMBEDDED HELPERS
  
    embeddedType: function(type, name) {
      return this.mappingOption(type, name, 'embedded');
    },
  
    eachEmbeddedRecord: function(record, callback, binding) {
      this.eachEmbeddedBelongsToRecord(record, callback, binding);
      this.eachEmbeddedHasManyRecord(record, callback, binding);
    },
  
    eachEmbeddedBelongsToRecord: function(record, callback, binding) {
      this.eachEmbeddedBelongsTo(record.constructor, function(name, relationship, embeddedType) {
        var embeddedRecord = get(record, name);
        if (embeddedRecord) { callback.call(binding, embeddedRecord, embeddedType); }
      });
    },
  
    eachEmbeddedHasManyRecord: function(record, callback, binding) {
      this.eachEmbeddedHasMany(record.constructor, function(name, relationship, embeddedType) {
        var array = get(record, name);
        for (var i=0, l=get(array, 'length'); i<l; i++) {
          callback.call(binding, array.objectAt(i), embeddedType);
        }
      });
    },
  
    eachEmbeddedHasMany: function(type, callback, binding) {
      this.eachEmbeddedRelationship(type, 'hasMany', callback, binding);
    },
  
    eachEmbeddedBelongsTo: function(type, callback, binding) {
      this.eachEmbeddedRelationship(type, 'belongsTo', callback, binding);
    },
  
    eachEmbeddedRelationship: function(type, kind, callback, binding) {
      type.eachRelationship(function(name, relationship) {
        var embeddedType = this.embeddedType(type, name);
  
        if (embeddedType) {
          if (relationship.kind === kind) {
            callback.call(binding, name, relationship, embeddedType);
          }
        }
      }, this);
    },
  
    // HELPERS
  
    // define a plurals hash in your subclass to define
    // special-case pluralization
    pluralize: function(name) {
      var plurals = this.configurations.get('plurals');
      return (plurals && plurals[name]) || name + "s";
    },
  
    // use the same plurals hash to determine
    // special-case singularization
    singularize: function(name) {
      var plurals = this.configurations.get('plurals');
      if (plurals) {
        for (var i in plurals) {
          if (plurals[i] === name) {
            return i;
          }
        }
      }
      if (name.lastIndexOf('s') === name.length - 1) {
        return name.substring(0, name.length - 1);
      } else {
        return name;
      }
    }
  });
  
  
  })();
  
  
  
  (function() {
  var isNone = Ember.isNone, isEmpty = Ember.isEmpty;
  
  /**
    @module data
    @submodule data-transforms
  */
  
  /**
    DS.Transforms is a hash of transforms used by DS.Serializer.
  
    @class JSONTransforms
    @static
    @namespace DS
  */
  DS.JSONTransforms = {
    string: {
      deserialize: function(serialized) {
        return isNone(serialized) ? null : String(serialized);
      },
  
      serialize: function(deserialized) {
        return isNone(deserialized) ? null : String(deserialized);
      }
    },
  
    number: {
      deserialize: function(serialized) {
        return isEmpty(serialized) ? null : Number(serialized);
      },
  
      serialize: function(deserialized) {
        return isEmpty(deserialized) ? null : Number(deserialized);
      }
    },
  
    // Handles the following boolean inputs:
    // "TrUe", "t", "f", "FALSE", 0, (non-zero), or boolean true/false
    'boolean': {
      deserialize: function(serialized) {
        var type = typeof serialized;
  
        if (type === "boolean") {
          return serialized;
        } else if (type === "string") {
          return serialized.match(/^true$|^t$|^1$/i) !== null;
        } else if (type === "number") {
          return serialized === 1;
        } else {
          return false;
        }
      },
  
      serialize: function(deserialized) {
        return Boolean(deserialized);
      }
    },
  
    date: {
      deserialize: function(serialized) {
        var type = typeof serialized;
  
        if (type === "string") {
          return new Date(Ember.Date.parse(serialized));
        } else if (type === "number") {
          return new Date(serialized);
        } else if (serialized === null || serialized === undefined) {
          // if the value is not present in the data,
          // return undefined, not null.
          return serialized;
        } else {
          return null;
        }
      },
  
      serialize: function(date) {
        if (date instanceof Date) {
          var days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
          var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
  
          var pad = function(num) {
            return num < 10 ? "0"+num : ""+num;
          };
  
          var utcYear = date.getUTCFullYear(),
              utcMonth = date.getUTCMonth(),
              utcDayOfMonth = date.getUTCDate(),
              utcDay = date.getUTCDay(),
              utcHours = date.getUTCHours(),
              utcMinutes = date.getUTCMinutes(),
              utcSeconds = date.getUTCSeconds();
  
  
          var dayOfWeek = days[utcDay];
          var dayOfMonth = pad(utcDayOfMonth);
          var month = months[utcMonth];
  
          return dayOfWeek + ", " + dayOfMonth + " " + month + " " + utcYear + " " +
                 pad(utcHours) + ":" + pad(utcMinutes) + ":" + pad(utcSeconds) + " GMT";
        } else {
          return null;
        }
      }
    }
  };
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-serializers
  */
  
  /**
    @class JSONSerializer
    @constructor
    @namespace DS
    @extends DS.Serializer
  */
  
  var get = Ember.get, set = Ember.set;
  
  DS.JSONSerializer = DS.Serializer.extend({
    init: function() {
      this._super();
  
      if (!get(this, 'transforms')) {
        this.set('transforms', DS.JSONTransforms);
      }
  
      this.sideloadMapping = Ember.Map.create();
      this.metadataMapping = Ember.Map.create();
  
      this.configure({
        meta: 'meta',
        since: 'since'
      });
    },
  
    configure: function(type, configuration) {
      var key;
  
      if (type && !configuration) {
        for(key in type){
          this.metadataMapping.set(get(type, key), key);
        }
  
        return this._super(type);
      }
  
      var sideloadAs = configuration.sideloadAs,
          sideloadMapping;
  
      if (sideloadAs) {
        sideloadMapping = this.aliases.sideloadMapping || Ember.Map.create();
        sideloadMapping.set(sideloadAs, type);
        this.aliases.sideloadMapping = sideloadMapping;
        delete configuration.sideloadAs;
      }
  
      this._super.apply(this, arguments);
    },
  
    addId: function(data, key, id) {
      data[key] = id;
    },
  
    /**
      A hook you can use to customize how the key/value pair is added to
      the serialized data.
  
      @param {any} hash the JSON hash being built
      @param {String} key the key to add to the serialized data
      @param {any} value the value to add to the serialized data
    */
    addAttribute: function(hash, key, value) {
      hash[key] = value;
    },
  
    extractAttribute: function(type, hash, attributeName) {
      var key = this._keyForAttributeName(type, attributeName);
      return hash[key];
    },
  
    extractId: function(type, hash) {
      var primaryKey = this._primaryKey(type);
  
      if (hash.hasOwnProperty(primaryKey)) {
        // Ensure that we coerce IDs to strings so that record
        // IDs remain consistent between application runs; especially
        // if the ID is serialized and later deserialized from the URL,
        // when type information will have been lost.
        return hash[primaryKey]+'';
      } else {
        return null;
      }
    },
  
    extractEmbeddedData: function(hash, key) {
      return hash[key];
    },
  
    extractHasMany: function(type, hash, key) {
      return hash[key];
    },
  
    extractBelongsTo: function(type, hash, key) {
      return hash[key];
    },
  
    extractBelongsToPolymorphic: function(type, hash, key) {
      var keyForId = this.keyForPolymorphicId(key),
          keyForType,
          id = hash[keyForId];
  
      if (id) {
        keyForType = this.keyForPolymorphicType(key);
        return {id: id, type: hash[keyForType]};
      }
  
      return null;
    },
  
    addBelongsTo: function(hash, record, key, relationship) {
      var type = record.constructor,
          name = relationship.key,
          value = null,
          includeType = (relationship.options && relationship.options.polymorphic),
          embeddedChild,
          child,
          id;
  
      if (this.embeddedType(type, name)) {
        if (embeddedChild = get(record, name)) {
          value = this.serialize(embeddedChild, { includeId: true, includeType: includeType });
        }
  
        hash[key] = value;
      } else {
        child = get(record, relationship.key);
        id = get(child, 'id');
  
        if (relationship.options && relationship.options.polymorphic && !Ember.isNone(id)) {
          this.addBelongsToPolymorphic(hash, key, id, child.constructor);
        } else {
          hash[key] = this.serializeId(id);
        }
      }
    },
  
    addBelongsToPolymorphic: function(hash, key, id, type) {
      var keyForId = this.keyForPolymorphicId(key),
          keyForType = this.keyForPolymorphicType(key);
      hash[keyForId] = id;
      hash[keyForType] = this.rootForType(type);
    },
  
    /**
      Adds a has-many relationship to the JSON hash being built.
  
      The default REST semantics are to only add a has-many relationship if it
      is embedded. If the relationship was initially loaded by ID, we assume that
      that was done as a performance optimization, and that changes to the
      has-many should be saved as foreign key changes on the child's belongs-to
      relationship.
  
      @param {Object} hash the JSON being built
      @param {DS.Model} record the record being serialized
      @param {String} key the JSON key into which the serialized relationship
        should be saved
      @param {Object} relationship metadata about the relationship being serialized
    */
  
    addHasMany: function(hash, record, key, relationship) {
      var type = record.constructor,
          name = relationship.key,
          serializedHasMany = [],
          includeType = (relationship.options && relationship.options.polymorphic),
          manyArray, embeddedType;
  
      // If the has-many is not embedded, there is nothing to do.
      embeddedType = this.embeddedType(type, name);
      if (embeddedType !== 'always') { return; }
  
      // Get the DS.ManyArray for the relationship off the record
      manyArray = get(record, name);
  
      // Build up the array of serialized records
      manyArray.forEach(function (record) {
        serializedHasMany.push(this.serialize(record, { includeId: true, includeType: includeType }));
      }, this);
  
      // Set the appropriate property of the serialized JSON to the
      // array of serialized embedded records
      hash[key] = serializedHasMany;
    },
  
    addType: function(hash, type) {
      var keyForType = this.keyForEmbeddedType();
      hash[keyForType] = this.rootForType(type);
    },
  
    // EXTRACTION
  
    extract: function(loader, json, type, record) {
      var root = this.rootForType(type);
  
      this.sideload(loader, type, json, root);
      this.extractMeta(loader, type, json);
  
      if (json[root]) {
        if (record) { loader.updateId(record, json[root]); }
        this.extractRecordRepresentation(loader, type, json[root]);
      } else {
        Ember.Logger.warn("Extract requested, but no data given for " + type + ". This may cause weird problems.");
      }
    },
  
    extractMany: function(loader, json, type, records) {
      var root = this.rootForType(type);
      root = this.pluralize(root);
  
      this.sideload(loader, type, json, root);
      this.extractMeta(loader, type, json);
  
      if (json[root]) {
        var objects = json[root], references = [];
        if (records) { records = records.toArray(); }
  
        for (var i = 0; i < objects.length; i++) {
          if (records) { loader.updateId(records[i], objects[i]); }
          var reference = this.extractRecordRepresentation(loader, type, objects[i]);
          references.push(reference);
        }
  
        loader.populateArray(references);
      }
    },
  
    extractMeta: function(loader, type, json) {
      var meta = this.configOption(type, 'meta'),
          data = json, value;
  
      if(meta && json[meta]){
        data = json[meta];
      }
  
      this.metadataMapping.forEach(function(property, key){
        value = data[property];
        if(!Ember.isNone(value)){
          loader.metaForType(type, key, value);
        }
      });
    },
  
    extractEmbeddedType: function(relationship, data) {
      var foundType = relationship.type;
      if(relationship.options && relationship.options.polymorphic) {
        var key = this.keyFor(relationship),
            keyForEmbeddedType = this.keyForEmbeddedType(key);
  
        foundType = this.typeFromAlias(data[keyForEmbeddedType]);
        delete data[keyForEmbeddedType];
      }
  
      return foundType;
    },
  
    /**
      @private
  
      Iterates over the `json` payload and attempts to load any data
      included alongside `root`.
  
      The keys expected for sideloaded data are based upon the types related
      to the root model. Recursion is used to ensure that types related to
      related types can be loaded as well. Any custom keys specified by
      `sideloadAs` mappings will also be respected.
  
      @param {DS.Store subclass} loader
      @param {DS.Model subclass} type
      @param {Object} json
      @param {String} root
    */
    sideload: function(loader, type, json, root) {
      var sideloadedType;
  
      this.configureSideloadMappingForType(type);
  
      for (var prop in json) {
        if (!json.hasOwnProperty(prop) ||
            prop === root ||
            !!this.metadataMapping.get(prop)) {
          continue;
        }
  
        sideloadedType = this.typeFromAlias(prop);
        Ember.assert("Your server returned a hash with the key " + prop + " but you have no mapping for it", !!sideloadedType);
  
        this.loadValue(loader, sideloadedType, json[prop]);
      }
    },
  
    /**
      @private
  
      Configures possible sideload mappings for the types related to a
      particular model. This recursive method ensures that sideloading
      works for related models as well.
  
      @param {DS.Model subclass} type
      @param {Ember.A} configured an array of types that have already been configured
    */
    configureSideloadMappingForType: function(type, configured) {
      if (!configured) {configured = Ember.A([]);}
      configured.pushObject(type);
  
      type.eachRelatedType(function(relatedType) {
        if (!configured.contains(relatedType)) {
          var root = this.defaultSideloadRootForType(relatedType);
          this.aliases.set(root, relatedType);
  
          this.configureSideloadMappingForType(relatedType, configured);
        }
      }, this);
    },
  
    loadValue: function(loader, type, value) {
      if (value instanceof Array) {
        for (var i=0; i < value.length; i++) {
          loader.sideload(type, value[i]);
        }
      } else {
        loader.sideload(type, value);
      }
    },
  
    /**
      A hook you can use in your serializer subclass to customize
      how a polymorphic association's name is converted into a key for the id.
  
      @param {String} name the association name to convert into a key
  
      @return {String} the key
    */
    keyForPolymorphicId: function(key){
      return key;
    },
  
    /**
      A hook you can use in your serializer subclass to customize
      how a polymorphic association's name is converted into a key for the type.
  
      @param {String} name the association name to convert into a key
  
      @return {String} the key
    */
    keyForPolymorphicType: function(key){
      return this.keyForPolymorphicId(key) + '_type';
    },
  
    /**
      A hook you can use in your serializer subclass to customize
      the key used to store the type of a record of an embedded polymorphic association.
  
      By default, this method return 'type'.
  
      @return {String} the key
    */
    keyForEmbeddedType: function() {
      return 'type';
    },
  
    // HELPERS
  
    /**
      @private
  
      Determines the singular root name for a particular type.
  
      This is an underscored, lowercase version of the model name.
      For example, the type `App.UserGroup` will have the root
      `user_group`.
  
      @param {DS.Model subclass} type
      @return {String} name of the root element
    */
    rootForType: function(type) {
      var typeString = type.toString();
  
      Ember.assert("Your model must not be anonymous. It was " + type, typeString.charAt(0) !== '(');
  
      // use the last part of the name as the URL
      var parts = typeString.split(".");
      var name = parts[parts.length - 1];
      return name.replace(/([A-Z])/g, '_$1').toLowerCase().slice(1);
    },
  
    /**
      @private
  
      The default root name for a particular sideloaded type.
  
      @param {DS.Model subclass} type
      @return {String} name of the root element
    */
    defaultSideloadRootForType: function(type) {
      return this.pluralize(this.rootForType(type));
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-adapter
  */
  
  var get = Ember.get, set = Ember.set, merge = Ember.merge;
  var forEach = Ember.EnumerableUtils.forEach;
  
  function loaderFor(store) {
    return {
      load: function(type, data, prematerialized) {
        return store.load(type, data, prematerialized);
      },
  
      loadMany: function(type, array) {
        return store.loadMany(type, array);
      },
  
      updateId: function(record, data) {
        return store.updateId(record, data);
      },
  
      populateArray: Ember.K,
  
      sideload: function(type, data) {
        return store.adapterForType(type).load(store, type, data);
      },
  
      sideloadMany: function(type, array) {
        return store.loadMany(type, array);
      },
  
      prematerialize: function(reference, prematerialized) {
        reference.prematerialized = prematerialized;
      },
  
      metaForType: function(type, property, data) {
        store.metaForType(type, property, data);
      }
    };
  }
  
  DS.loaderFor = loaderFor;
  
  /**
    An adapter is an object that receives requests from a store and
    translates them into the appropriate action to take against your
    persistence layer. The persistence layer is usually an HTTP API, but may
    be anything, such as the browser's local storage.
  
    ### Creating an Adapter
  
    First, create a new subclass of `DS.Adapter`:
  
        App.MyAdapter = DS.Adapter.extend({
          // ...your code here
        });
  
    To tell your store which adapter to use, set its `adapter` property:
  
        App.store = DS.Store.create({
          adapter: App.MyAdapter.create()
        });
  
    `DS.Adapter` is an abstract base class that you should override in your
    application to customize it for your backend. The minimum set of methods
    that you should implement is:
  
      * `find()`
      * `createRecord()`
      * `updateRecord()`
      * `deleteRecord()`
  
    To improve the network performance of your application, you can optimize
    your adapter by overriding these lower-level methods:
  
      * `findMany()`
      * `createRecords()`
      * `updateRecords()`
      * `deleteRecords()`
      * `commit()`
  
    For an example implementation, see {{#crossLink "DS.RestAdapter"}} the
    included REST adapter.{{/crossLink}}.
    
    @class Adapter
    @namespace DS
    @extends Ember.Object
  */
  
  DS.Adapter = Ember.Object.extend(DS._Mappable, {
  
    init: function() {
      var serializer = get(this, 'serializer');
  
      if (Ember.Object.detect(serializer)) {
        serializer = serializer.create();
        set(this, 'serializer', serializer);
      }
  
      this._attributesMap = this.createInstanceMapFor('attributes');
      this._configurationsMap = this.createInstanceMapFor('configurations');
  
      this._outstandingOperations = new Ember.MapWithDefault({
        defaultValue: function() { return 0; }
      });
  
      this._dependencies = new Ember.MapWithDefault({
        defaultValue: function() { return new Ember.OrderedSet(); }
      });
  
      this.registerSerializerTransforms(this.constructor, serializer, {});
      this.registerSerializerMappings(serializer);
    },
  
    /**
      Loads a payload for a record into the store.
  
      This method asks the serializer to break the payload into
      constituent parts, and then loads them into the store. For example,
      if you have a payload that contains embedded records, they will be
      extracted by the serializer and loaded into the store.
  
      For example:
  
          adapter.load(store, App.Person, {
            id: 123,
            firstName: "Yehuda",
            lastName: "Katz",
            occupations: [{
              id: 345,
              title: "Tricycle Mechanic"
            }]
          });
  
      This will load the payload for the `App.Person` with ID `123` and
      the embedded `App.Occupation` with ID `345`.
  
      @method load
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {any} payload
    */
    load: function(store, type, payload) {
      var loader = loaderFor(store);
      return get(this, 'serializer').extractRecordRepresentation(loader, type, payload);
    },
  
    /**
      Acknowledges that the adapter has finished creating a record.
  
      Your adapter should call this method from `createRecord` when
      it has saved a new record to its persistent storage and received
      an acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      creation, and you want to update the existing record with the
      new information, pass the payload as the fourth parameter.
  
      For example, the `RESTAdapter` saves newly created records by
      making an Ajax request. When the server returns, the adapter
      calls didCreateRecord. If the server returns a response body,
      it is passed as the payload.
  
      @method didCreateRecord
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} record
      @param {any} payload
    */
    didCreateRecord: function(store, type, record, payload) {
      store.didSaveRecord(record);
  
      if (payload) {
        var loader = DS.loaderFor(store);
  
        loader.load = function(type, data, prematerialized) {
          store.updateId(record, data);
          return store.load(type, data, prematerialized);
        };
  
        get(this, 'serializer').extract(loader, payload, type);
      }
    },
  
    /**
      Acknowledges that the adapter has finished creating several records.
  
      Your adapter should call this method from `createRecords` when it
      has saved multiple created records to its persistent storage
      received an acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      creation, and you want to update the existing record with the
      new information, pass the payload as the fourth parameter.
  
      @method didCreateRecords
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} record
      @param {any} payload
    */
    didCreateRecords: function(store, type, records, payload) {
      records.forEach(function(record) {
        store.didSaveRecord(record);
      }, this);
  
      if (payload) {
        var loader = DS.loaderFor(store);
        get(this, 'serializer').extractMany(loader, payload, type, records);
      }
    },
  
    /**
      @private
  
      Acknowledges that the adapter has finished updating or deleting a record.
  
      Your adapter should call this method from `updateRecord` or `deleteRecord`
      when it has updated or deleted a record to its persistent storage and
      received an acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      update or delete, and you want to update the existing record with the
      new information, pass the payload as the fourth parameter.
  
      @method didSaveRecord
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} record
      @param {any} payload
    */
    didSaveRecord: function(store, type, record, payload) {
      store.didSaveRecord(record);
  
      var serializer = get(this, 'serializer');
  
      serializer.eachEmbeddedRecord(record, function(embeddedRecord, embeddedType) {
        if (embeddedType === 'load') { return; }
  
        this.didSaveRecord(store, embeddedRecord.constructor, embeddedRecord);
      }, this);
  
      if (payload) {
        var loader = DS.loaderFor(store);
        serializer.extract(loader, payload, type);
      }
    },
  
    /**
      Acknowledges that the adapter has finished updating a record.
  
      Your adapter should call this method from `updateRecord` when it
      has updated a record to its persistent storage and received an
      acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      update, pass the payload as the fourth parameter.
  
      @method didUpdateRecord
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} record
      @param {any} payload
    */
    didUpdateRecord: function() {
      this.didSaveRecord.apply(this, arguments);
    },
  
    /**
      Acknowledges that the adapter has finished deleting a record.
  
      Your adapter should call this method from `deleteRecord` when it
      has deleted a record from its persistent storage and received an
      acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      deletion, pass the payload as the fourth parameter.
  
      @method didDeleteRecord
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} record
      @param {any} payload
    */
    didDeleteRecord: function() {
      this.didSaveRecord.apply(this, arguments);
    },
  
    /**
      Acknowledges that the adapter has finished updating or deleting
      multiple records.
  
      Your adapter should call this method from its `updateRecords` or
      `deleteRecords` when it has updated or deleted multiple records
      to its persistent storage and received an acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      creation, pass the payload as the fourth parameter.
  
      @method didSaveRecords
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} records
      @param {any} payload
    */
    didSaveRecords: function(store, type, records, payload) {
      records.forEach(function(record) {
        store.didSaveRecord(record);
      }, this);
  
      if (payload) {
        var loader = DS.loaderFor(store);
        get(this, 'serializer').extractMany(loader, payload, type);
      }
    },
  
    /**
      Acknowledges that the adapter has finished updating multiple records.
  
      Your adapter should call this method from its `updateRecords` when
      it has updated multiple records to its persistent storage and
      received an acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      update, pass the payload as the fourth parameter.
  
      @method didUpdateRecords
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} records
      @param {any} payload
    */
    didUpdateRecords: function() {
      this.didSaveRecords.apply(this, arguments);
    },
  
    /**
      Acknowledges that the adapter has finished updating multiple records.
  
      Your adapter should call this method from its `deleteRecords` when
      it has deleted multiple records to its persistent storage and
      received an acknowledgement.
  
      If the persistent storage returns a new payload in response to the
      deletion, pass the payload as the fourth parameter.
  
      @method didDeleteRecords
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} records
      @param {any} payload
    */
    didDeleteRecords: function() {
      this.didSaveRecords.apply(this, arguments);
    },
  
    /**
      Loads the response to a request for a record by ID.
  
      Your adapter should call this method from its `find` method
      with the response from the backend.
  
      You should pass the same ID to this method that was given
      to your find method so that the store knows which record
      to associate the new data with.
  
      @method didFindRecord
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {any} payload
      @param {String} id
    */
    didFindRecord: function(store, type, payload, id) {
      var loader = DS.loaderFor(store);
  
      loader.load = function(type, data, prematerialized) {
        prematerialized = prematerialized || {};
        prematerialized.id = id;
  
        return store.load(type, data, prematerialized);
      };
  
      get(this, 'serializer').extract(loader, payload, type);
    },
  
    /**
      Loads the response to a request for all records by type.
  
      You adapter should call this method from its `findAll`
      method with the response from the backend.
  
      @method didFindAll
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {any} payload
    */
    didFindAll: function(store, type, payload) {
      var loader = DS.loaderFor(store),
          serializer = get(this, 'serializer');
  
      store.didUpdateAll(type);
  
      serializer.extractMany(loader, payload, type);
    },
  
    /**
      Loads the response to a request for records by query.
  
      Your adapter should call this method from its `findQuery`
      method with the response from the backend.
  
      @method didFindQuery
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {any} payload
      @param {DS.AdapterPopulatedRecordArray} recordArray
    */
    didFindQuery: function(store, type, payload, recordArray) {
      var loader = DS.loaderFor(store);
  
      loader.populateArray = function(data) {
        recordArray.load(data);
      };
  
      get(this, 'serializer').extractMany(loader, payload, type);
    },
  
    /**
      Loads the response to a request for many records by ID.
  
      You adapter should call this method from its `findMany`
      method with the response from the backend.
  
      @method didFindMany
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {any} payload
    */
    didFindMany: function(store, type, payload) {
      var loader = DS.loaderFor(store);
  
      get(this, 'serializer').extractMany(loader, payload, type);
    },
  
    /**
      Notifies the store that a request to the backend returned
      an error.
  
      Your adapter should call this method to indicate that the
      backend returned an error for a request.
  
      @method didError
      @param {DS.Store} store
      @param {subclass of DS.Model} type
      @param {DS.Model} record
    */
    didError: function(store, type, record) {
      store.recordWasError(record);
    },
  
    dirtyRecordsForAttributeChange: function(dirtySet, record, attributeName, newValue, oldValue) {
      if (newValue !== oldValue) {
        // If this record is embedded, add its parent
        // to the dirty set.
        this.dirtyRecordsForRecordChange(dirtySet, record);
      }
    },
  
    dirtyRecordsForRecordChange: function(dirtySet, record) {
      dirtySet.add(record);
    },
  
    dirtyRecordsForBelongsToChange: function(dirtySet, child) {
      this.dirtyRecordsForRecordChange(dirtySet, child);
    },
  
    dirtyRecordsForHasManyChange: function(dirtySet, parent) {
      this.dirtyRecordsForRecordChange(dirtySet, parent);
    },
  
    /**
      @private
  
      This method recursively climbs the superclass hierarchy and
      registers any class-registered transforms on the adapter's
      serializer.
  
      Once it registers a transform for a given type, it ignores
      subsequent transforms for the same attribute type.
  
      @method registerSerializerTransforms
      @param {Class} klass the DS.Adapter subclass to extract the
        transforms from
      @param {DS.Serializer} serializer the serializer to register
        the transforms onto
      @param {Object} seen a hash of attributes already seen
    */
    registerSerializerTransforms: function(klass, serializer, seen) {
      var transforms = klass._registeredTransforms, superclass, prop;
      var enumTransforms = klass._registeredEnumTransforms;
  
      for (prop in transforms) {
        if (!transforms.hasOwnProperty(prop) || prop in seen) { continue; }
        seen[prop] = true;
  
        serializer.registerTransform(prop, transforms[prop]);
      }
  
      for (prop in enumTransforms) {
        if (!enumTransforms.hasOwnProperty(prop) || prop in seen) { continue; }
        seen[prop] = true;
  
        serializer.registerEnumTransform(prop, enumTransforms[prop]);
      }
  
      if (superclass = klass.superclass) {
        this.registerSerializerTransforms(superclass, serializer, seen);
      }
    },
  
    /**
      @private
  
      This method recursively climbs the superclass hierarchy and
      registers any class-registered mappings on the adapter's
      serializer.
  
      @method registerSerializerMappings
      @param {Class} klass the DS.Adapter subclass to extract the
        transforms from
      @param {DS.Serializer} serializer the serializer to register the
        mappings onto
    */
    registerSerializerMappings: function(serializer) {
      var mappings = this._attributesMap,
          configurations = this._configurationsMap;
  
      mappings.forEach(serializer.map, serializer);
      configurations.forEach(serializer.configure, serializer);
    },
  
    /**
      The `find()` method is invoked when the store is asked for a record that
      has not previously been loaded. In response to `find()` being called, you
      should query your persistence layer for a record with the given ID. Once
      found, you can asynchronously call the store's `load()` method to load
      the record.
  
      Here is an example `find` implementation:
  
          find: function(store, type, id) {
            var url = type.url;
            url = url.fmt(id);
  
            jQuery.getJSON(url, function(data) {
                // data is a hash of key/value pairs. If your server returns a
                // root, simply do something like:
                // store.load(type, id, data.person)
                store.load(type, id, data);
            });
          }
  
      @method find
    */
    find: null,
  
    serializer: DS.JSONSerializer,
  
    registerTransform: function(attributeType, transform) {
      get(this, 'serializer').registerTransform(attributeType, transform);
    },
  
    /**
      A public method that allows you to register an enumerated
      type on your adapter.  This is useful if you want to utilize
      a text representation of an integer value.
  
      Eg: Say you want to utilize "low","medium","high" text strings
      in your app, but you want to persist those as 0,1,2 in your backend.
      You would first register the transform on your adapter instance:
  
          adapter.registerEnumTransform('priority', ['low', 'medium', 'high']);
  
      You would then refer to the 'priority' DS.attr in your model:
  
          App.Task = DS.Model.extend({
            priority: DS.attr('priority')
          });
  
      And lastly, you would set/get the text representation on your model instance,
      but the transformed result will be the index number of the type.
  
          App:   myTask.get('priority') => 'low'
          Server Response / Load:  { myTask: {priority: 0} }
  
      @method registerEnumTransform
      @param {String} type of the transform
      @param {Array} array of String objects to use for the enumerated values.
        This is an ordered list and the index values will be used for the transform.
    */
    registerEnumTransform: function(attributeType, objects) {
      get(this, 'serializer').registerEnumTransform(attributeType, objects);
    },
  
    /**
      If the globally unique IDs for your records should be generated on the client,
      implement the `generateIdForRecord()` method. This method will be invoked
      each time you create a new record, and the value returned from it will be
      assigned to the record's `primaryKey`.
  
      Most traditional REST-like HTTP APIs will not use this method. Instead, the ID
      of the record will be set by the server, and your adapter will update the store
      with the new ID when it calls `didCreateRecord()`. Only implement this method if
      you intend to generate record IDs on the client-side.
  
      The `generateIdForRecord()` method will be invoked with the requesting store as
      the first parameter and the newly created record as the second parameter:
  
          generateIdForRecord: function(store, record) {
            var uuid = App.generateUUIDWithStatisticallyLowOddsOfCollision();
            return uuid;
          }
  
      @method generateIdForRecord
      @param {DS.Store} store
      @param {DS.Model} record
    */
    generateIdForRecord: null,
  
    materialize: function(record, data, prematerialized) {
      get(this, 'serializer').materialize(record, data, prematerialized);
    },
  
    serialize: function(record, options) {
      return get(this, 'serializer').serialize(record, options);
    },
  
    extractId: function(type, data) {
      return get(this, 'serializer').extractId(type, data);
    },
  
    groupByType: function(enumerable) {
      var map = Ember.MapWithDefault.create({
        defaultValue: function() { return Ember.OrderedSet.create(); }
      });
  
      forEach(enumerable, function(item) {
        map.get(item.constructor).add(item);
      });
  
      return map;
    },
  
    commit: function(store, commitDetails) {
      this.save(store, commitDetails);
    },
  
    save: function(store, commitDetails) {
      var adapter = this;
  
      function filter(records) {
        var filteredSet = Ember.OrderedSet.create();
  
        records.forEach(function(record) {
          if (adapter.shouldSave(record)) {
            filteredSet.add(record);
          }
        });
  
        return filteredSet;
      }
  
      this.groupByType(commitDetails.created).forEach(function(type, set) {
        this.createRecords(store, type, filter(set));
      }, this);
  
      this.groupByType(commitDetails.updated).forEach(function(type, set) {
        this.updateRecords(store, type, filter(set));
      }, this);
  
      this.groupByType(commitDetails.deleted).forEach(function(type, set) {
        this.deleteRecords(store, type, filter(set));
      }, this);
    },
  
    shouldSave: Ember.K,
  
    createRecords: function(store, type, records) {
      records.forEach(function(record) {
        this.createRecord(store, type, record);
      }, this);
    },
  
    updateRecords: function(store, type, records) {
      records.forEach(function(record) {
        this.updateRecord(store, type, record);
      }, this);
    },
  
    deleteRecords: function(store, type, records) {
      records.forEach(function(record) {
        this.deleteRecord(store, type, record);
      }, this);
    },
  
    findMany: function(store, type, ids) {
      ids.forEach(function(id) {
        this.find(store, type, id);
      }, this);
    }
  });
  
  DS.Adapter.reopenClass({
    registerTransform: function(attributeType, transform) {
      var registeredTransforms = this._registeredTransforms || {};
  
      registeredTransforms[attributeType] = transform;
  
      this._registeredTransforms = registeredTransforms;
    },
  
    registerEnumTransform: function(attributeType, objects) {
      var registeredEnumTransforms = this._registeredEnumTransforms || {};
  
      registeredEnumTransforms[attributeType] = objects;
  
      this._registeredEnumTransforms = registeredEnumTransforms;
    },
  
    map: DS._Mappable.generateMapFunctionFor('attributes', function(key, newValue, map) {
      var existingValue = map.get(key);
  
      merge(existingValue, newValue);
    }),
  
    configure: DS._Mappable.generateMapFunctionFor('configurations', function(key, newValue, map) {
      var existingValue = map.get(key);
  
      // If a mapping configuration is provided, peel it off and apply it
      // using the DS.Adapter.map API.
      var mappings = newValue && newValue.mappings;
      if (mappings) {
        this.map(key, mappings);
        delete newValue.mappings;
      }
  
      merge(existingValue, newValue);
    }),
  
    resolveMapConflict: function(oldValue, newValue) {
      merge(newValue, oldValue);
  
      return newValue;
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-serializers
  */
  
  /**
    @class FixtureSerializer
    @constructor
    @namespace DS
    @extends DS.Serializer
  */
  
  var get = Ember.get, set = Ember.set;
  
  DS.FixtureSerializer = DS.Serializer.extend({
    deserializeValue: function(value, attributeType) {
      return value;
    },
  
    serializeValue: function(value, attributeType) {
      return value;
    },
  
    addId: function(data, key, id) {
      data[key] = id;
    },
  
    addAttribute: function(hash, key, value) {
      hash[key] = value;
    },
  
    addBelongsTo: function(hash, record, key, relationship) {
      var id = get(record, relationship.key+'.id');
      if (!Ember.isNone(id)) { hash[key] = id; }
    },
  
    addHasMany: function(hash, record, key, relationship) {
      var ids = get(record, relationship.key).map(function(item) {
        return item.get('id');
      });
  
      hash[relationship.key] = ids;
    },
  
    extract: function(loader, fixture, type, record) {
      if (record) { loader.updateId(record, fixture); }
      this.extractRecordRepresentation(loader, type, fixture);
    },
  
    extractMany: function(loader, fixtures, type, records) {
      var objects = fixtures, references = [];
      if (records) { records = records.toArray(); }
  
      for (var i = 0; i < objects.length; i++) {
        if (records) { loader.updateId(records[i], objects[i]); }
        var reference = this.extractRecordRepresentation(loader, type, objects[i]);
        references.push(reference);
      }
  
      loader.populateArray(references);
    },
  
    extractId: function(type, hash) {
      var primaryKey = this._primaryKey(type);
  
      if (hash.hasOwnProperty(primaryKey)) {
        // Ensure that we coerce IDs to strings so that record
        // IDs remain consistent between application runs; especially
        // if the ID is serialized and later deserialized from the URL,
        // when type information will have been lost.
        return hash[primaryKey]+'';
      } else {
        return null;
      }
    },
  
    extractAttribute: function(type, hash, attributeName) {
      var key = this._keyForAttributeName(type, attributeName);
      return hash[key];
    },
  
    extractHasMany: function(type, hash, key) {
      return hash[key];
    },
  
    extractBelongsTo: function(type, hash, key) {
      var val = hash[key];
      if (val != null) {
        val = val + '';
      }
      return val;
    },
  
    extractBelongsToPolymorphic: function(type, hash, key) {
      var keyForId = this.keyForPolymorphicId(key),
          keyForType,
          id = hash[keyForId];
  
      if (id) {
        keyForType = this.keyForPolymorphicType(key);
        return {id: id, type: hash[keyForType]};
      }
  
      return null;
    },
  
    keyForPolymorphicId: function(key) {
      return key;
    },
  
    keyForPolymorphicType: function(key) {
      return key + '_type';
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-adapters
  */
  
  var get = Ember.get, fmt = Ember.String.fmt,
      indexOf = Ember.EnumerableUtils.indexOf;
  
  /**
    `DS.FixtureAdapter` is an adapter that loads records from memory.
    Its primarily used for development and testing. You can also use
    `DS.FixtureAdapter` while working on the API but are not ready to
    integrate yet. It is a fully functioning adapter. All CRUD methods
    are implemented. You can also implement query logic that a remote
    system would do. Its possible to do develop your entire application
    with `DS.FixtureAdapter`.
  
    @class FixtureAdapter
    @constructor
    @namespace DS
    @extends DS.Adapter
  */
  DS.FixtureAdapter = DS.Adapter.extend({
  
    simulateRemoteResponse: true,
  
    latency: 50,
  
    serializer: DS.FixtureSerializer,
  
    /*
      Implement this method in order to provide data associated with a type
    */
    fixturesForType: function(type) {
      if (type.FIXTURES) {
        var fixtures = Ember.A(type.FIXTURES);
        return fixtures.map(function(fixture){
          var fixtureIdType = typeof fixture.id;
          if(fixtureIdType !== "number" && fixtureIdType !== "string"){
            throw new Error(fmt('the id property must be defined as a number or string for fixture %@', [fixture]));
          }
          fixture.id = fixture.id + '';
          return fixture;
        });
      }
      return null;
    },
  
    /*
      Implement this method in order to query fixtures data
    */
    queryFixtures: function(fixtures, query, type) {
      Ember.assert('Not implemented: You must override the DS.FixtureAdapter::queryFixtures method to support querying the fixture store.');
    },
  
    updateFixtures: function(type, fixture) {
      if(!type.FIXTURES) {
        type.FIXTURES = [];
      }
  
      var fixtures = type.FIXTURES;
  
      this.deleteLoadedFixture(type, fixture);
  
      fixtures.push(fixture);
    },
  
    /*
      Implement this method in order to provide provide json for CRUD methods
    */
    mockJSON: function(type, record) {
      return this.serialize(record, { includeId: true });
    },
  
    /*
      Adapter methods
    */
    generateIdForRecord: function(store, record) {
      return Ember.guidFor(record);
    },
  
    find: function(store, type, id) {
      var fixtures = this.fixturesForType(type),
          fixture;
  
      Ember.warn("Unable to find fixtures for model type " + type.toString(), fixtures);
  
      if (fixtures) {
        fixture = Ember.A(fixtures).findProperty('id', id);
      }
  
      if (fixture) {
        this.simulateRemoteCall(function() {
          this.didFindRecord(store, type, fixture, id);
        }, this);
      }
    },
  
    findMany: function(store, type, ids) {
      var fixtures = this.fixturesForType(type);
  
      Ember.assert("Unable to find fixtures for model type "+type.toString(), !!fixtures);
  
      if (fixtures) {
        fixtures = fixtures.filter(function(item) {
          return indexOf(ids, item.id) !== -1;
        });
      }
  
      if (fixtures) {
        this.simulateRemoteCall(function() {
          this.didFindMany(store, type, fixtures);
        }, this);
      }
    },
  
    findAll: function(store, type) {
      var fixtures = this.fixturesForType(type);
  
      Ember.assert("Unable to find fixtures for model type "+type.toString(), !!fixtures);
  
      this.simulateRemoteCall(function() {
        this.didFindAll(store, type, fixtures);
      }, this);
    },
  
    findQuery: function(store, type, query, array) {
      var fixtures = this.fixturesForType(type);
  
      Ember.assert("Unable to find fixtures for model type "+type.toString(), !!fixtures);
  
      fixtures = this.queryFixtures(fixtures, query, type);
  
      if (fixtures) {
        this.simulateRemoteCall(function() {
          this.didFindQuery(store, type, fixtures, array);
        }, this);
      }
    },
  
    createRecord: function(store, type, record) {
      var fixture = this.mockJSON(type, record);
  
      this.updateFixtures(type, fixture);
  
      this.simulateRemoteCall(function() {
        this.didCreateRecord(store, type, record, fixture);
      }, this);
    },
  
    updateRecord: function(store, type, record) {
      var fixture = this.mockJSON(type, record);
  
      this.updateFixtures(type, fixture);
  
      this.simulateRemoteCall(function() {
        this.didUpdateRecord(store, type, record, fixture);
      }, this);
    },
  
    deleteRecord: function(store, type, record) {
      var fixture = this.mockJSON(type, record);
  
      this.deleteLoadedFixture(type, fixture);
  
      this.simulateRemoteCall(function() {
        this.didDeleteRecord(store, type, record);
      }, this);
    },
  
    /*
      @private
    */
   deleteLoadedFixture: function(type, record) {
      var existingFixture = this.findExistingFixture(type, record);
  
      if(existingFixture) {
        var index = indexOf(type.FIXTURES, existingFixture);
        type.FIXTURES.splice(index, 1);
        return true;
      }
    },
  
    findExistingFixture: function(type, record) {
      var fixtures = this.fixturesForType(type);
      var id = this.extractId(type, record);
  
      return this.findFixtureById(fixtures, id);
    },
  
    findFixtureById: function(fixtures, id) {
      return Ember.A(fixtures).find(function(r) {
        if(''+get(r, 'id') === ''+id) {
          return true;
        } else {
          return false;
        }
      });
    },
  
    simulateRemoteCall: function(callback, context) {
      if (get(this, 'simulateRemoteResponse')) {
        // Schedule with setTimeout
        Ember.run.later(context, callback, get(this, 'latency'));
      } else {
        // Asynchronous, but at the of the runloop with zero latency
        Ember.run.once(context, callback);
      }
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-serializers
  */
  
  /**
    @class RESTSerializer
    @constructor
    @namespace DS
    @extends DS.Serializer
  */
  
  var get = Ember.get;
  
  DS.RESTSerializer = DS.JSONSerializer.extend({
    keyForAttributeName: function(type, name) {
      return Ember.String.decamelize(name);
    },
  
    keyForBelongsTo: function(type, name) {
      var key = this.keyForAttributeName(type, name);
  
      if (this.embeddedType(type, name)) {
        return key;
      }
  
      return key + "_id";
    },
  
    keyForHasMany: function(type, name) {
      var key = this.keyForAttributeName(type, name);
  
      if (this.embeddedType(type, name)) {
        return key;
      }
  
      return this.singularize(key) + "_ids";
    },
  
    keyForPolymorphicId: function(key) {
      return key;
    },
  
    keyForPolymorphicType: function(key) {
      return key.replace(/_id$/, '_type');
    },
  
    extractValidationErrors: function(type, json) {
      var errors = {};
  
      get(type, 'attributes').forEach(function(name) {
        var key = this._keyForAttributeName(type, name);
        if (json['errors'].hasOwnProperty(key)) {
          errors[name] = json['errors'][key];
        }
      }, this);
  
      return errors;
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    @module data
    @submodule data-adapters
  */
  
  var get = Ember.get, set = Ember.set;
  
  DS.rejectionHandler = function(reason) {
    Ember.Logger.assert([reason, reason.message, reason.stack]);
  
    throw reason;
  };
  
  /**
    The REST adapter allows your store to communicate with an HTTP server by
    transmitting JSON via XHR. Most Ember.js apps that consume a JSON API
    should use the REST adapter.
  
    This adapter is designed around the idea that the JSON exchanged with
    the server should be conventional.
  
    ## JSON Structure
  
    The REST adapter expects the JSON returned from your server to follow
    these conventions.
  
    ### Object Root
  
    The JSON payload should be an object that contains the record inside a
    root property. For example, in response to a `GET` request for
    `/posts/1`, the JSON should look like this:
  
    ```js
    {
      "post": {
        title: "I'm Running to Reform the W3C's Tag",
        author: "Yehuda Katz"
      }
    }
    ```
  
    ### Conventional Names
  
    Attribute names in your JSON payload should be the underscored versions of
    the attributes in your Ember.js models.
  
    For example, if you have a `Person` model:
  
    ```js
    App.Person = DS.Model.extend({
      firstName: DS.attr('string'),
      lastName: DS.attr('string'),
      occupation: DS.attr('string')
    });
    ```
  
    The JSON returned should look like this:
  
    ```js
    {
      "person": {
        "first_name": "Barack",
        "last_name": "Obama",
        "occupation": "President"
      }
    }
    ```
  
    @class RESTAdapter
    @constructor
    @namespace DS
    @extends DS.Adapter
  */
  DS.RESTAdapter = DS.Adapter.extend({
    namespace: null,
    bulkCommit: false,
    since: 'since',
  
    serializer: DS.RESTSerializer,
  
    init: function() {
      this._super.apply(this, arguments);
    },
  
    shouldSave: function(record) {
      var reference = get(record, '_reference');
  
      return !reference.parent;
    },
  
    dirtyRecordsForRecordChange: function(dirtySet, record) {
      this._dirtyTree(dirtySet, record);
    },
  
    dirtyRecordsForHasManyChange: function(dirtySet, record, relationship) {
      var embeddedType = get(this, 'serializer').embeddedType(record.constructor, relationship.secondRecordName);
  
      if (embeddedType === 'always') {
        relationship.childReference.parent = relationship.parentReference;
        this._dirtyTree(dirtySet, record);
      }
    },
  
    _dirtyTree: function(dirtySet, record) {
      dirtySet.add(record);
  
      get(this, 'serializer').eachEmbeddedRecord(record, function(embeddedRecord, embeddedType) {
        if (embeddedType !== 'always') { return; }
        if (dirtySet.has(embeddedRecord)) { return; }
        this._dirtyTree(dirtySet, embeddedRecord);
      }, this);
  
      var reference = record.get('_reference');
  
      if (reference.parent) {
        var store = get(record, 'store');
        var parent = store.recordForReference(reference.parent);
        this._dirtyTree(dirtySet, parent);
      }
    },
  
    createRecord: function(store, type, record) {
      var root = this.rootForType(type);
      var adapter = this;
      var data = {};
  
      data[root] = this.serialize(record, { includeId: true });
  
      return this.ajax(this.buildURL(root), "POST", {
        data: data
      }).then(function(json){
        adapter.didCreateRecord(store, type, record, json);
      }, function(xhr) {
        adapter.didError(store, type, record, xhr);
        throw xhr;
      }).then(null, DS.rejectionHandler);
    },
  
    createRecords: function(store, type, records) {
      var adapter = this;
  
      if (get(this, 'bulkCommit') === false) {
        return this._super(store, type, records);
      }
  
      var root = this.rootForType(type),
          plural = this.pluralize(root);
  
      var data = {};
      data[plural] = [];
      records.forEach(function(record) {
        data[plural].push(this.serialize(record, { includeId: true }));
      }, this);
  
      return this.ajax(this.buildURL(root), "POST", {
        data: data
      }).then(function(json) {
        adapter.didCreateRecords(store, type, records, json);
      }).then(null, DS.rejectionHandler);
    },
  
    updateRecord: function(store, type, record) {
      var id, root, adapter, data;
  
      id = get(record, 'id');
      root = this.rootForType(type);
      adapter = this;
  
      data = {};
      data[root] = this.serialize(record);
  
      return this.ajax(this.buildURL(root, id, record), "PUT",{
        data: data
      }).then(function(json){
        adapter.didUpdateRecord(store, type, record, json);
      }, function(xhr) {
        adapter.didError(store, type, record, xhr);
        throw xhr;
      }).then(null, DS.rejectionHandler);
    },
  
    updateRecords: function(store, type, records) {
      var root, plural, adapter, data;
  
      if (get(this, 'bulkCommit') === false) {
        return this._super(store, type, records);
      }
  
      root = this.rootForType(type);
      plural = this.pluralize(root);
      adapter = this;
  
      data = {};
  
      data[plural] = [];
  
      records.forEach(function(record) {
        data[plural].push(this.serialize(record, { includeId: true }));
      }, this);
  
      return this.ajax(this.buildURL(root, "bulk"), "PUT", {
        data: data
      }).then(function(json) {
        adapter.didUpdateRecords(store, type, records, json);
      }).then(null, DS.rejectionHandler);
    },
  
    deleteRecord: function(store, type, record) {
      var id, root, adapter;
  
      id = get(record, 'id');
      root = this.rootForType(type);
      adapter = this;
  
      return this.ajax(this.buildURL(root, id, record), "DELETE").then(function(json){
        adapter.didDeleteRecord(store, type, record, json);
      }, function(xhr){
        adapter.didError(store, type, record, xhr);
        throw xhr;
      }).then(null, DS.rejectionHandler);
    },
  
    deleteRecords: function(store, type, records) {
      var root, plural, serializer, adapter, data;
  
      if (get(this, 'bulkCommit') === false) {
        return this._super(store, type, records);
      }
  
      root = this.rootForType(type);
      plural = this.pluralize(root);
      serializer = get(this, 'serializer');
      adapter = this;
  
      data = {};
  
      data[plural] = [];
      records.forEach(function(record) {
        data[plural].push(serializer.serializeId( get(record, 'id') ));
      });
  
      return this.ajax(this.buildURL(root, 'bulk'), "DELETE", {
        data: data
      }).then(function(json){
        adapter.didDeleteRecords(store, type, records, json);
      }).then(null, DS.rejectionHandler);
    },
  
    find: function(store, type, id) {
      var root = this.rootForType(type), adapter = this;
  
      return this.ajax(this.buildURL(root, id), "GET").
        then(function(json){
          adapter.didFindRecord(store, type, json, id);
      }).then(null, DS.rejectionHandler);
    },
  
    findAll: function(store, type, since) {
      var root, adapter;
  
      root = this.rootForType(type);
      adapter = this;
  
      return this.ajax(this.buildURL(root), "GET",{
        data: this.sinceQuery(since)
      }).then(function(json) {
        adapter.didFindAll(store, type, json);
      }).then(null, DS.rejectionHandler);
    },
  
    findQuery: function(store, type, query, recordArray) {
      var root = this.rootForType(type),
      adapter = this;
  
      return this.ajax(this.buildURL(root), "GET", {
        data: query
      }).then(function(json){
        adapter.didFindQuery(store, type, json, recordArray);
      }).then(null, DS.rejectionHandler);
    },
  
    findMany: function(store, type, ids, owner) {
      var root = this.rootForType(type),
      adapter = this;
  
      ids = this.serializeIds(ids);
  
      return this.ajax(this.buildURL(root), "GET", {
        data: {ids: ids}
      }).then(function(json) {
        adapter.didFindMany(store, type, json);
      }).then(null, DS.rejectionHandler);
    },
  
    /**
      @private
  
      This method serializes a list of IDs using `serializeId`
  
      @return {Array} an array of serialized IDs
    */
    serializeIds: function(ids) {
      var serializer = get(this, 'serializer');
  
      return Ember.EnumerableUtils.map(ids, function(id) {
        return serializer.serializeId(id);
      });
    },
  
    didError: function(store, type, record, xhr) {
      if (xhr.status === 422) {
        var json = JSON.parse(xhr.responseText),
            serializer = get(this, 'serializer'),
            errors = serializer.extractValidationErrors(type, json);
  
        store.recordWasInvalid(record, errors);
      } else {
        this._super.apply(this, arguments);
      }
    },
  
    ajax: function(url, type, hash) {
      var adapter = this;
  
      return new Ember.RSVP.Promise(function(resolve, reject) {
        hash = hash || {};
        hash.url = url;
        hash.type = type;
        hash.dataType = 'json';
        hash.context = adapter;
  
        if (hash.data && type !== 'GET') {
          hash.contentType = 'application/json; charset=utf-8';
          hash.data = JSON.stringify(hash.data);
        }
  
        hash.success = function(json) {
          Ember.run(null, resolve, json);
        };
  
        hash.error = function(jqXHR, textStatus, errorThrown) {
          Ember.run(null, reject, jqXHR);
        };
  
        Ember.$.ajax(hash);
      });
    },
  
    url: "",
  
    rootForType: function(type) {
      var serializer = get(this, 'serializer');
      return serializer.rootForType(type);
    },
  
    pluralize: function(string) {
      var serializer = get(this, 'serializer');
      return serializer.pluralize(string);
    },
  
    buildURL: function(root, suffix, record) {
      var url = [this.url];
  
      Ember.assert("Namespace URL (" + this.namespace + ") must not start with slash", !this.namespace || this.namespace.toString().charAt(0) !== "/");
      Ember.assert("Root URL (" + root + ") must not start with slash", !root || root.toString().charAt(0) !== "/");
      Ember.assert("URL suffix (" + suffix + ") must not start with slash", !suffix || suffix.toString().charAt(0) !== "/");
  
      if (!Ember.isNone(this.namespace)) {
        url.push(this.namespace);
      }
  
      url.push(this.pluralize(root));
      if (suffix !== undefined) {
        url.push(suffix);
      }
  
      return url.join("/");
    },
  
    sinceQuery: function(since) {
      var query = {};
      query[get(this, 'since')] = since;
      return since ? query : null;
    }
  });
  
  })();
  
  
  
  (function() {
  /**
    Adapters included with Ember-Data.
  
    @module data
    @submodule data-adapters
  
    @main data-adapters
  */
  
  })();
  
  
  
  (function() {
  //Copyright (C) 2011 by Living Social, Inc.
  
  //Permission is hereby granted, free of charge, to any person obtaining a copy of
  //this software and associated documentation files (the "Software"), to deal in
  //the Software without restriction, including without limitation the rights to
  //use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  //of the Software, and to permit persons to whom the Software is furnished to do
  //so, subject to the following conditions:
  
  //The above copyright notice and this permission notice shall be included in all
  //copies or substantial portions of the Software.
  
  //THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  //IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  //FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  //AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  //LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  //OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  //SOFTWARE.
  
  /**
    Ember Data
    @module data
  */
  
  })();
  
  
  })();
  