text: var mongodb = require('./mongodb');
  var schema = mongodb.mongoose.Schema;
  
  var blogCollectionSchema = new Schema({
  name : String,
  count : Integer
  });
  
  var blogCollection = mongodb.mongoose.model("blogCollection", blogCollectionSchema);
  var blogCollectionDAO = function(){};
  
  blogCollectionDAO.prototype.save = function(obj, callback) {
    var instance = new blogCollection(obj);
    instance.save(function(err){
      callback(err);
    });
  };
  
  module.exports = new blogCollectionDAO();