var db = require('../../db/db');

//Controller method - retrieve joined listing/user/category fields from DB
exports.getAll = function(category, callback) {
  // Listing.findAll({ order: ['createdAt', 'DESC'] })
  db.Listing.findAll({
    include:
    [{
      model: db.Category,
      attributes: ['categoryName'],
      where: {categoryName: category},
    },
    {
      model: db.User,
      attributes: ['username', 'phone', 'email']
    }],
    order: 'createdAt DESC'
  })
    .then(function(listings) {
      callback(200, listings);
    })
    .catch(function(error) {
      console.error(error);
      callback(404, error);
    });
};

//Controller method - add a listings to DB
exports.addOne = function(listing, callback) {
  db.Listing.create(listing)
    .then(function(listing) {
      callback(201, listing);
    })
    .catch(function(error) {
      console.error(error);
      callback(404, error);
    });
};


var db = require('../../db/db');

//Controller method - retrieve joined listing/user/category fields from DB
exports.getAll = function(category, callback) {
  // Listing.findAll({ order: ['createdAt', 'DESC'] })
  db.Listing.findAll({
    include:
    [{
      model: db.Category,
      attributes: ['categoryName'],
      where: {categoryName: category},
    },
    {
      model: db.User,
      attributes: ['username', 'phone', 'email']
    }]
  })
    .then(function(listings) {
      callback(200, listings);
    })
    .catch(function(error) {
      console.error(error);
      callback(404, error);
    });
};

//Controller method - add a listings to DB
exports.addOne = function(listing, callback) {
  db.Listing.create(listing)
    .then(function(listing) {
      callback(201, listing);
    })
    .catch(function(error) {
      console.error(error);
      callback(404, error);
    });
};


--- 
+++ 
@@ -13,7 +13,8 @@
     {
       model: db.User,
       attributes: ['username', 'phone', 'email']
-    }]
+    }],
+    order: 'createdAt DESC'
   })
     .then(function(listings) {
       callback(200, listings);
Implement sorting Listings in Descending order (most recent top of the page)
