ember-data/master

ember-data.js

(function() {
window.DS = Ember.Namespace.create({
  CURRENT_API_REVISION: 7
});

})();



(function() {
var get = Ember.get, set = Ember.set;

/**
  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.
*/

DS.RecordArray = Ember.ArrayProxy.extend(Ember.Evented, {
  /**
    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'),
        clientId = content.objectAt(index),
        store = get(this, 'store');

    if (clientId !== undefined) {
      return store.findByClientId(get(this, 'type'), clientId);
    }
  },

  materializedObjectAt: function(index) {
    var clientId = get(this, 'content').objectAt(index);
    if (!clientId) { return; }

    if (get(this, 'store').recordIsMaterialized(clientId)) {
      return this.objectAt(index);
    }
  },

  update: function() {
    if (get(this, 'isUpdating')) { return; }

    var store = get(this, 'store'),
        type = get(this, 'type');

    store.fetchAll(type, this);
  }
});

})();



(function() {
var get = Ember.get;

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 store = get(this, 'store');
    store.updateRecordArrayFilter(this, get(this, 'type'), get(this, 'filterFunction'));
  }, 'filterFunction')
});

})();



(function() {
var get = Ember.get, set = Ember.set;

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(array) {
    var store = get(this, 'store'), type = get(this, 'type');

    var clientIds = store.loadMany(type, array).clientIds;

    this.beginPropertyChanges();
    set(this, 'content', Ember.A(clientIds));
    set(this, 'isLoaded', true);
    this.endPropertyChanges();

    this.trigger('didLoad');
  }
});

})();



(function() {
var get = Ember.get, set = Ember.set, guidFor = Ember.guidFor;

var Set = function() {
  this.hash = {};
  this.list = [];
};

Set.prototype = {
  add: function(item) {
    var hash = this.hash,
        guid = guidFor(item);

    if (hash.hasOwnProperty(guid)) { return; }

    hash[guid] = true;
    this.list.push(item);
  },

  remove: function(item) {
    var hash = this.hash,
        guid = guidFor(item);

    if (!hash.hasOwnProperty(guid)) { return; }

    delete hash[guid];
    var list = this.list,
        index = Ember.EnumerableUtils.indexOf(this, item);

    list.splice(index, 1);
  },

  isEmpty: function() {
    return this.list.length === 0;
  }
};

var LoadedState = Ember.State.extend({
  recordWasAdded: function(manager, record) {
    var dirty = manager.dirty, observer;
    dirty.add(record);

    observer = function() {
      if (!get(record, 'isDirty')) {
        record.removeObserver('isDirty', observer);
        manager.send('childWasSaved', record);
      }
    };

    record.addObserver('isDirty', observer);
  },

  recordWasRemoved: function(manager, record) {
    var dirty = manager.dirty, observer;
    dirty.add(record);

    observer = function() {
      record.removeObserver('isDirty', observer);
      if (!get(record, 'isDirty')) { manager.send('childWasSaved', record); }
    };

    record.addObserver('isDirty', observer);
  }
});

var states = {
  loading: Ember.State.create({
    isLoaded: false,
    isDirty: false,

    loadedRecords: function(manager, count) {
      manager.decrement(count);
    },

    becameLoaded: function(manager) {
      manager.transitionTo('clean');
    }
  }),

  clean: LoadedState.create({
    isLoaded: true,
    isDirty: false,

    recordWasAdded: function(manager, record) {
      this._super(manager, record);
      manager.goToState('dirty');
    },

    update: function(manager, clientIds) {
      var manyArray = manager.manyArray;
      set(manyArray, 'content', clientIds);
    }
  }),

  dirty: LoadedState.create({
    isLoaded: true,
    isDirty: true,

    childWasSaved: function(manager, child) {
      var dirty = manager.dirty;
      dirty.remove(child);

      if (dirty.isEmpty()) { manager.send('arrayBecameSaved'); }
    },

    arrayBecameSaved: function(manager) {
      manager.goToState('clean');
    }
  })
};

DS.ManyArrayStateManager = Ember.StateManager.extend({
  manyArray: null,
  initialState: 'loading',
  states: states,

  /**
   This number is used to keep track of the number of outstanding
   records that must be loaded before the array is considered
   loaded. As results stream in, this number is decremented until
   it becomes zero, at which case the `isLoaded` flag will be set
   to true
  */
  counter: 0,

  init: function() {
    this._super();
    this.dirty = new Set();
    this.counter = get(this, 'manyArray.length');
  },

  decrement: function(count) {
    var counter = this.counter = this.counter - count;

    Ember.assert("Somehow the ManyArray loaded counter went below 0. This is probably an ember-data bug. Please report it at https://github.com/emberjs/data/issues", counter >= 0);

    if (counter === 0) {
      this.send('becameLoaded');
    }
  }
});

})();



(function() {
var get = Ember.get, set = Ember.set;

/**
  A ManyArray is a RecordArray that represents the contents of a has-many
  association.

  The ManyArray is instantiated lazily the first time the association is
  requested.

  ### Inverses

  Often, the associations 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
  association, 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 an association belongs the
  association's _owner_.
*/
DS.ManyArray = DS.RecordArray.extend({
  init: function() {
    this._super.apply(this, arguments);
    this._changesToSync = Ember.OrderedSet.create();
  },

  /**
    @private

    The record to which this association belongs.

    @property {DS.Model}
  */
  owner: null,

  // 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 clientIds = get(this, 'content'),
        store = get(this, 'store'),
        type = get(this, 'type');

    store.fetchUnloadedClientIds(type, clientIds);
  },

  // 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 = added.map(function(record) {
      Ember.assert("You can only add records of " + (get(this, 'type') && get(this, 'type').toString()) + " to this association.", !get(this, 'type') || (get(this, 'type') === record.constructor));
      return record.get('clientId');
    }, 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._suspendedAssociations) {
      // 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 clientId = get(this, 'content').objectAt(i);
        //var record = this.objectAt(i);
        //if (!record) { continue; }

        var change = DS.OneToManyChange.forChildAndParent(clientId, get(this, 'store'), {
          parentType: owner.constructor,
          hasManyName: name
        });
        change.hasManyName = name;

        if (change.oldParent === undefined) { change.oldParent = get(owner, 'clientId'); }
        change.newParent = null;
        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');

    if (!owner._suspendedAssociations) {
      // 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 clientId = get(this, 'content').objectAt(i);

        var change = DS.OneToManyChange.forChildAndParent(clientId, get(this, 'store'), {
          parentType: owner.constructor,
          hasManyName: name
        });
        change.hasManyName = name;

        // The oldParent will be looked up in `sync` if it
        // was not set by `belongsToWillChange`.
        change.newParent = get(owner, 'clientId');
        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();
      });
      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;

    transaction = transaction || get(owner, 'transaction');

    record = store.createRecord.call(store, type, hash, transaction);
    this.pushObject(record);

    return record;
  },

  /**
    METHODS FOR USE BY INVERSE RELATIONSHIPS
    ========================================

    These methods exists so that belongsTo relationships can
    set their inverses without causing an infinite loop.

    This creates two APIs:

    * the normal enumerable API, which is used by clients
      of the `ManyArray` and triggers a change to inverse
      `belongsTo` relationships.
    * `removeFromContent` and `addToContent`, which are
      used by inverse relationships and do not trigger a
      change to `belongsTo` relationships.

    Unlike the normal `addObject` and `removeObject` APIs,
    these APIs manipulate the `content` array without
    triggering side-effects.
  */

  /** @private */
  removeFromContent: function(record) {
    var clientId = get(record, 'clientId');
    get(this, 'content').removeObject(clientId);
  },

  /** @private */
  addToContent: function(record) {
    var clientId = get(record, 'clientId');
    get(this, 'content').addObject(clientId);
  }
});

})();



(function() {

})();



(function() {
var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt,
    removeObject = Ember.EnumerableUtils.removeObject, forEach = Ember.EnumerableUtils.forEach;

var RelationshipLink = function(parent, child) {
  this.oldParent = parent;
  this.child = child;
};



/**
  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.
*/

var arrayDefault = function() { return []; };

DS.Transaction = Ember.Object.extend({
  /**
    @private

    Creates the bucket data structure used to segregate records by
    type.
  */
  init: function() {
    set(this, 'buckets', {
      clean:    Ember.OrderedSet.create(),
      created:  Ember.OrderedSet.create(),
      updated:  Ember.OrderedSet.create(),
      deleted:  Ember.OrderedSet.create(),
      inflight: Ember.OrderedSet.create()
    });

    set(this, 'relationships', 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');
  }),

  /**
    Adds an existing record to this transaction. Only records without
    modficiations (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 recordTransaction = get(record, 'transaction'),
        defaultTransaction = get(this, 'store.defaultTransaction');

    // Make `add` idempotent
    if (recordTransaction === this) { return; }

    // XXX it should be possible to move a dirty transaction from the default transaction

    // we could probably make this work if someone has a valid use case. Do you?
    Ember.assert("Once a record has changed, you cannot move it into a different transaction", !get(record, 'isDirty'));

    Ember.assert("Models cannot belong to more than one transaction at a time.", recordTransaction === defaultTransaction);

    this.adoptRecord(record);
  },

  relationshipBecameDirty: function(relationship) {
    get(this, 'relationships').add(relationship);
  },

  relationshipBecameClean: function(relationship) {
    get(this, 'relationships').remove(relationship);
  },

  /**
    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');
    var adapter = get(store, '_adapter');
    var defaultTransaction = get(store, 'defaultTransaction');

    var iterate = function(records) {
      var set = records.copy();
      set.forEach(function (record) {
        record.send('willCommit');
      });
      return set;
    };

    var relationships = get(this, 'relationships');

    var commitDetails = {
      created: iterate(this.bucketForType('created')),
      updated: iterate(this.bucketForType('updated')),
      deleted: iterate(this.bucketForType('deleted')),
      relationships: relationships
    };

    if (this === defaultTransaction) {
      set(store, 'defaultTransaction', store.transaction());
    }

    this.removeCleanRecords();

    if (!commitDetails.created.isEmpty() || !commitDetails.updated.isEmpty() || !commitDetails.deleted.isEmpty() || !relationships.isEmpty()) {
      if (adapter && adapter.commit) { adapter.commit(store, commitDetails); }
      else { throw fmt("Adapter is either null or does not implement `commit` method", this); }
    }
  },

  /**
    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() {
    // Loop through all of the records in each of the dirty states
    // and initiate a rollback on them. As a side effect of telling
    // the record to roll back, it should also move itself out of
    // the dirty bucket and into the clean bucket.
    ['created', 'updated', 'deleted', 'inflight'].forEach(function(bucketType) {
      var records = this.bucketForType(bucketType);
      forEach(records, function(record) {
        record.send('rollback');
      });
      records.clear();
    }, this);

    // Now that all records in the transaction are guaranteed to be
    // clean, migrate them all to the store's default transaction.
    this.removeCleanRecords();
  },

  /**
    @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 clean = this.bucketForType('clean');
    clean.forEach(function(record) {
      this.remove(record);
    }, this);
    clean.clear();
  },

  /**
    @private

    Returns the bucket for the given bucket type. For example, you might call
    `this.bucketForType('updated')` to get the `Ember.Map` that contains all
    of the records that have changes pending.

    @param {String} bucketType the type of bucket
    @returns Ember.Map
  */
  bucketForType: function(bucketType) {
    var buckets = get(this, 'buckets');

    return get(buckets, bucketType);
  },

  /**
    @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.removeFromBucket('clean', record);
    }

    this.addToBucket('clean', record);
    set(record, 'transaction', this);
  },

  /**
    @private

    Adds a record to the named bucket.

    @param {String} bucketType one of `clean`, `created`, `updated`, or `deleted`
  */
  addToBucket: function(bucketType, record) {
    this.bucketForType(bucketType).add(record);
  },

  /**
    @private

    Removes a record from the named bucket.

    @param {String} bucketType one of `clean`, `created`, `updated`, or `deleted`
  */
  removeFromBucket: function(bucketType, record) {
    this.bucketForType(bucketType).remove(record);
  },

  /**
    @private

    Called by a record's state manager to indicate that the record has entered
    a dirty state. The record will be moved from the `clean` bucket and into
    the appropriate dirty bucket.

    @param {String} bucketType one of `created`, `updated`, or `deleted`
  */
  recordBecameDirty: function(bucketType, record) {
    this.removeFromBucket('clean', record);
    this.addToBucket(bucketType, record);
  },

  /**
    @private

    Called by a record's state manager to indicate that the record has entered
    inflight state. The record will be moved from its current dirty bucket and into
    the `inflight` bucket.

    @param {String} bucketType one of `created`, `updated`, or `deleted`
  */
  recordBecameInFlight: function(kind, record) {
    this.removeFromBucket(kind, record);
    this.addToBucket('inflight', record);
  },

  recordIsMoving: function(kind, record) {
    this.removeFromBucket(kind, record);
    this.addToBucket('clean', record);
  },

  /**
    @private

    Called by a record's state manager to indicate that the record has entered
    a clean state. The record will be moved from its current dirty or inflight bucket and into
    the `clean` bucket.

    @param {String} bucketType one of `created`, `updated`, or `deleted`
  */
  recordBecameClean: function(kind, record) {
    this.removeFromBucket(kind, record);
    this.remove(record);
  }
});

})();



(function() {
var classify = Ember.String.classify, get = Ember.get;

/**
  @private

  The Mappable mixin is designed to assist classes that need supply a mapping
  API on their class, then reify that mapping to make it available on their
  instances.

  For example, DS.Store uses this mixin to implement the `registerAdapter` API.
  API consumers can call `registerAdapter`, which adds entries to the
  `_adaptersMap` private property.

  The first time an adapter is looked up, the instance calls `_reifyMappings`
  with the mapping name. This collapse all of the registered mappings in the
  entire class hierarchy into a mapping on the instance.

  This mixin is not currently designed for public consumption. It's API does
  not yet expose the firm yet yielding API contours that Ember.js developers
  expect. If you want to make this available more broadly, please clean it up
  first.
*/
DS.Mappable = Ember.Mixin.create({
  _reifyMappings: function(mappingName) {
    var mappingsKey = '_' + mappingName + 'Map',
        flag = '_didReify' + classify(mappingName) + 'Mappings';

    if (this[flag]) { return; }
    this[flag] = true;

    var mapping = this[mappingsKey] = new Ember.Map();

    var klass = this.constructor;

    while (klass && klass !== DS.Store) {
      this._reifyMappingForClass(mappingsKey, klass, mapping);
      klass = klass.superclass;
    }
  },

  _reifyMappingForClass: function(mappingsKey, klass, mapping) {
    var classAdapterMap = klass[mappingsKey];
    if (classAdapterMap) {
      classAdapterMap.forEach(eachAdapterMap);
    }

    function eachAdapterMap(key, object) {
      var type;

      if (typeof key === 'string') {
        type = get(Ember.lookup, key);
        Ember.assert("Could not find model at path " + key, type);
      } else {
        type = key;
      }

      if (!mapping.get(type, object)) {
        if (Ember.Object.detect(object)) {
          object = object.create();
        }

        mapping.set(type, object);
      }
    }
  }
});

})();



(function() {
/*globals Ember*/
var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;

// 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 hash provided by that source.
//   * +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.
//   * +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+'';
};

var map = Ember.EnumerableUtils.map;

/**
  The store contains all of the hashes for records loaded from the server.
  It is also responsible for creating instances of DS.Model when you request one
  of these data hashes, so that they can be bound to in your Handlebars templates.

  Create a new store like this:

       MyApp.store = DS.Store.create();

  You can retrieve DS.Model instances from the store in several ways. To retrieve
  a record for a specific id, use the `find()` method:

       var record = MyApp.store.find(MyApp.Contact, 123);

   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.
*/
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() {
    // Enforce API revisioning. See BREAKING_CHANGES.md for more.
    var revision = get(this, 'revision');

    if (revision !== DS.CURRENT_API_REVISION && !Ember.ENV.TESTING) {
      throw new Error("Error: The Ember Data library has had breaking API changes since the last time you updated the library. Please review the list of breaking changes at https://github.com/emberjs/data/blob/master/BREAKING_CHANGES.md, then update your store's `revision` property to " + DS.CURRENT_API_REVISION);
    }

    if (!get(DS, 'defaultStore') || get(this, 'isDefaultStore')) {
      set(DS, 'defaultStore', this);
    }

    // internal bookkeeping; not observable
    this.typeMaps = {};
    this.recordCache = [];
    this.clientIdToId = {};
    this.clientIdToType = {};
    this.clientIdToHash = {};
    this.recordArraysByClientId = {};
    this.relationshipChanges = {};

    // Internally, we maintain a map of all unloaded IDs requested by
    // a ManyArray. As the adapter loads hashes 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.
    this.loadingRecordArrays = {};

    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 hash that was
    passed to either `load()` or `loadMany()`. Then, the hash and the record
    are passed to the adapter's `materialize()` method, which allows the adapter
    to translate arbitrary hash data structures 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 clientId = get(record, 'clientId'),
        cidToHash = this.clientIdToHash,
        adapter = this.adapterForType(record.constructor),
        hash = cidToHash[clientId];

    cidToHash[clientId] = MATERIALIZED;

    // Ensures the record's data structures are setup
    // before being populated by the adapter.
    record.setupData();

    if (hash !== CREATED) {
      // Instructs the adapter to extract information from the
      // opaque hash and materialize the record's attributes and
      // relationships.
      adapter.materialize(record, hash);
    }
  },

  /**
    @private

    Returns true if there is already a record for this clientId.

    This is used to determine whether cleanup is required, so that
    "changes" to unmaterialized records do not trigger mass
    materialization.

    For example, if a parent record in an association with a large
    number of children is deleted, we want to avoid materializing
    those children.

    @param {String|Number} clientId
    @return {Boolean}
  */
  recordIsMaterialized: function(clientId) {
    return !!this.recordCache[clientId];
  },

  /**
    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: 'DS.Adapter',

  /**
    @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 `toJSON()` 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
  */
  toJSON: function(record, options) {
    return this.adapterForType(record.constructor).toJSON(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(window, 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 hashes 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()`.

    @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.
    var adapter;
    if (Ember.none(id)) {
      adapter = get(this, 'adapter');
      if (adapter && adapter.generateIdForRecord) {
        id = coerceId(adapter.generateIdForRecord(this, record));
        properties.id = id;
      }
    }

    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 hash for this
    // clientId. If we see this value later, we will skip
    // materialization.
    var clientId = this.pushHash(CREATED, id, type);

    // Now that we have a clientId, attach it to the record we
    // just created.
    set(record, 'clientId', clientId);

    // Move the record out of its initial `empty` state into
    // the `loaded` state.
    record.loadedData();

    // Store the record we just created in the record cache for
    // this clientId.
    this.recordCache[clientId] = record;

    // Set the properties specified on the record.
    record.setProperties(properties);

    return record;
  },

  // .................
  // . DELETE RECORD .
  // .................

  /**
    For symmetry, a record can be deleted via the store.

    @param {DS.Model} record
  */
  deleteRecord: function(record) {
    record.deleteRecord();
  },

  // ................
  // . 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.
  */
  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 `findByClientId`.
  */
  findById: function(type, id) {
    var clientId = this.typeMapFor(type).idToCid[id];

    if (clientId) {
      return this.findByClientId(type, clientId);
    }

    clientId = this.pushHash(LOADING, id, type);

    // create a new instance of the model type in the
    // 'isLoading' state
    var record = this.materializeRecord(type, clientId, id);

    // let the adapter set the data, possibly async
    var adapter = this.adapterForType(type);
    if (adapter && adapter.find) { adapter.find(this, type, id); }
    else { throw "Adapter is either null or does not implement `find` method"; }

    return record;
  },

  /**
    @private

    This method returns a record for a given clientId.

    If there is no record object yet for the clientId, this method
    materializes a new record object. This allows adapters to
    eagerly load many raw hashes into the store, and avoid incurring
    the cost to create the objects until they are requested.

    Several parts of Ember Data call this method:

    * findById, if a clientId already exists for a given type and
      id combination
    * OneToManyChange, which is backed by clientIds, when getChild,
      getOldParent or getNewParent are called
    * RecordArray, which is backed by clientIds, when an object at
      a particular index is looked up

    In short, it's a convenient way to get a record for a known
    clientId, materializing it if necessary.

    @param {Class} type
    @param {Number|String} clientId
  */
  findByClientId: function(type, clientId) {
    var cidToHash, record, id;

    record = this.recordCache[clientId];

    if (!record) {
      // create a new instance of the model type in the
      // 'isLoading' state
      id = this.clientIdToId[clientId];
      record = this.materializeRecord(type, clientId, id);

      cidToHash = this.clientIdToHash;

      if (typeof cidToHash[clientId] === 'object') {
        record.loadedData();
      }
    }

    return record;
  },

  /**
    @private

    Given a type and array of `clientId`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.
  */
  neededClientIds: function(type, clientIds) {
    var neededClientIds = [],
        cidToHash = this.clientIdToHash,
        clientId;

    for (var i=0, l=clientIds.length; i<l; i++) {
      clientId = clientIds[i];
      if (cidToHash[clientId] === UNLOADED) {
        neededClientIds.push(clientId);
        cidToHash[clientId] = LOADING;
      }
    }

    return neededClientIds;
  },

  /**
    @private

    This method is the entry point that associations use to update
    themselves when their underlying data changes.

    First, it determines which of its `clientId`s are still unloaded,
    then converts the needed `clientId`s to IDs and invokes `findMany`
    on the adapter.
  */
  fetchUnloadedClientIds: function(type, clientIds) {
    var neededClientIds = this.neededClientIds(type, clientIds);
    this.fetchMany(type, neededClientIds);
  },

  /**
    @private

    This method takes a type and list of `clientId`s, converts the
    `clientId`s into IDs, and then invokes the adapter's `findMany`
    method.

    It is used both by a brand new association (via the `findMany`
    method) or when the data underlying an existing association
    changes (via the `fetchUnloadedClientIds` method).
  */
  fetchMany: function(type, clientIds) {
    var clientIdToId = this.clientIdToId;

    var neededIds = map(clientIds, function(clientId) {
      return clientIdToId[clientId];
    });

    if (!neededIds.length) { return; }

    var adapter = this.adapterForType(type);
    if (adapter && adapter.findMany) { adapter.findMany(this, type, neededIds); }
    else { throw "Adapter is either null or does not implement `findMany` method"; }
  },

  /**
    @private

    `findMany` is the entry point that associations use to generate a
    new `ManyArray` for the list of IDs specified by the server for
    the association.

    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 clientIds 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, ids, record, relationship) {
    // 1. Convert ids to client ids
    // 2. Determine which of the client ids need to be loaded
    // 3. Create a new ManyArray whose content is ALL of the clientIds
    // 4. Decrement the ManyArray's counter by the number of loaded clientIds
    // 5. Put the ManyArray into our bookkeeping data structure, keyed on
    //    the needed clientIds
    // 6. Ask the adapter to load the records for the unloaded clientIds (but
    //    convert them back to ids)

    if (!Ember.isArray(ids)) {
      var adapter = this.adapterForType(type);
      if (adapter && adapter.findAssociation) { adapter.findAssociation(this, record, relationship, ids); }
      else { throw fmt("Adapter is either null or does not implement `findMany` method", this); }

      return this.createManyArray(type, Ember.A());
    }

    ids = map(ids, function(id) { return coerceId(id); });
    var clientIds = this.clientIdsForIds(type, ids);

    var neededClientIds = this.neededClientIds(type, clientIds),
        manyArray = this.createManyArray(type, Ember.A(clientIds)),
        loadingRecordArrays = this.loadingRecordArrays,
        clientId, i, l;

    // Start the decrementing counter on the ManyArray at the number of
    // records we need to load from the adapter
    manyArray.loadingRecordsCount(neededClientIds.length);

    if (neededClientIds.length) {
      for (i=0, l=neededClientIds.length; i<l; i++) {
        clientId = neededClientIds[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.
        if (loadingRecordArrays[clientId]) {
          loadingRecordArrays[clientId].push(manyArray);
        } else {
          this.loadingRecordArrays[clientId] = [ manyArray ];
        }
      }

      this.fetchMany(type, neededClientIds);
    } else {
      // all requested records are available
      manyArray.set('isLoaded', true);
    }

    return manyArray;
  },

  /**
    @private

    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.

    @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);
    if (adapter && adapter.findQuery) { adapter.findQuery(this, type, query, array); }
    else { throw "Adapter is either null or does not implement `findQuery` method"; }
    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) {
    var array = this.all(type);
    this.fetchAll(type, array);
    return array;
  },

  /**
    @private
  */
  fetchAll: function(type, array) {
    var sinceToken = this.typeMapFor(type).sinceToken,
        adapter = this.adapterForType(type);

    set(array, 'isUpdating', true);

    if (adapter && adapter.findAll) { adapter.findAll(this, type, sinceToken); }
    else { throw "Adapter is either null or does not implement `findAll` method"; }
  },

  /**
  */
  sinceForType: function(type, sinceToken) {
    this.typeMapFor(type).sinceToken = sinceToken;
  },

  /**
  */
  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.

    @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.registerRecordArray(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 hashes before loading them into the store.

    @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, filterFunction: filter });

    this.registerRecordArray(array, type, filter);

    return array;
  },

  /**
    TODO: What is this method trying to do?
  */
  recordIsLoaded: function(type, id) {
    return !Ember.none(this.typeMapFor(type).idToCid[id]);
  },

  // ............
  // . 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
  */
  hashWasUpdated: function(type, clientId, record) {
    // Because hash updates are invoked at the end of the run loop,
    // it is possible that a record might be deleted after its hash
    // 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; }

    var cidToHash = this.clientIdToHash,
        hash = cidToHash[clientId];

    if (typeof hash === "object") {
      this.updateRecordArrays(type, clientId);
    }
  },

  // ..............
  // . PERSISTING .
  // ..............

  /**
    This method delegates committing 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.
  */
  commit: function() {
    get(this, 'defaultTransaction').commit();
  },

  /**
    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 a hash, that hash 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 a hash, 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 a hash or explicitly invoke `store.didReceiveId` with
    the server-provided id.

    Note that an adapter may not supply a hash when acknowledging
    a deleted record.

    @see DS.Store#didUpdateRelationship

    @param {DS.Model} record the in-flight record
    @param {Object} hash an optional hash (see above)
  */
  didSaveRecord: function(record, hash) {
    if (get(record, 'isNew')) {
      this.didCreateRecord(record);
    } else if (get(record, 'isDeleted')) {
      this.didDeleteRecord(record);
    }

    if (hash) {
      // We're about to clobber the entire data hash with new
      // data, so clear out any remaining unacknowledged changes
      record.removeInFlightDirtyFactorsForAttributes();
      this.updateId(record, hash);
      this.updateRecordHash(record, hash);
    } else {
      this.didUpdateAttributes(record);
    }
  },

  /**
    For convenience, if an adapter is performing a bulk commit,
    it can also acknowledge all of the records at once.

    If the adapter supplies hashes, 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]} hashes an Array of hashes. This
      parameter must be an integer-indexed Array-like.
  */
  didSaveRecords: function(list, hashes) {
    var i = 0;
    list.forEach(function(record) {
      this.didSaveRecord(record, hashes && hashes[i++]);
    }, this);
  },

  /**
    TODO: Do we need this?
  */
  didDeleteRecord: function(record) {
    record.adapterDidDelete();
  },

  /**
    This method allows the adapter to acknowledge just that
    a record was created, but defer acknowledging specific
    attributes or relationships.

    This is most useful for adapters that have a multi-step
    creation process (first, create the record on the backend,
    then make a separate request to add the attributes).

    When acknowledging a newly created record using a more
    fine-grained approach, you *must* call `didCreateRecord`,
    or the record will remain in in-flight limbo forever.

    @param {DS.Model} record
  */
  didCreateRecord: function(record) {
    record.adapterDidCreate();
  },

  /**
    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 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 hash.

    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 an 
  */
  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.eachAssociation(function(name, meta) {
          if (meta.kind === 'belongsTo') {
            store.didUpdateRelationship(record, name);
          }
        });

        store.didSaveRecord(record, hash);

    ### 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 relationship = this.relationshipChangeFor(get(record, 'clientId'), relationshipName);
    if (relationship) { relationship.adapterDidUpdate(); }
  },

  materializeHasMany: function(record, name, ids) {
    record.materializeHasMany(name, ids);
    record.adapterDidUpdateHasMany(name);
  },

  /**
    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, 'clientId'));

    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 a data hash 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} hash
  */
  updateRecordHash: function(record, hash) {
    var clientId = get(record, 'clientId'),
        cidToHash = this.clientIdToHash;

    cidToHash[clientId] = hash;

    record.didChangeData();
  },

  /**
    @private

    If an adapter invokes `didSaveRecord` with a hash, this method
    extracts the id from the supplied hash (using the adapter's
    `extractId()` method) and indexes the clientId with that id.

    @param {DS.Model} record
    @param {Object} hash
  */
  updateId: function(record, hash) {
    var typeMap = this.typeMapFor(record.constructor),
        clientId = get(record, 'clientId'),
        oldId = get(record, 'id'),
        type = record.constructor,
        id = this.adapterForType(type).extractId(type, hash);

    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 a data hash 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;
  },

  // .................
  // . RECORD ARRAYS .
  // .................

  /**
    @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
  */
  registerRecordArray: function(array, type, filter) {
    var recordArrays = this.typeMapFor(type).recordArrays;

    recordArrays.push(array);

    this.updateRecordArrayFilter(array, type, filter);
  },

  /**
    @private

    Create a `DS.ManyArray` for a type and list of clientIds
    and index the `ManyArray` under each clientId. This allows
    us to efficiently remove records from `ManyArray`s when
    they are deleted.

    @param {Class} type
    @param {Array} clientIds

    @return {DS.ManyArray}
  */
  createManyArray: function(type, clientIds) {
    var array = DS.ManyArray.create({ type: type, content: clientIds, store: this });

    clientIds.forEach(function(clientId) {
      var recordArrays = this.recordArraysForClientId(clientId);
      recordArrays.add(array);
    }, this);

    return array;
  },

  /**
    @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.
  */
  updateRecordArrayFilter: function(array, type, filter) {
    var typeMap = this.typeMapFor(type),
        cidToHash = this.clientIdToHash,
        clientIds = typeMap.clientIds,
        clientId, hash, shouldFilter, record;

    for (var i=0, l=clientIds.length; i<l; i++) {
      clientId = clientIds[i];
      shouldFilter = false;

      hash = cidToHash[clientId];

      if (typeof hash === 'object') {
        if (record = this.recordCache[clientId]) {
          if (!get(record, 'isDeleted')) { shouldFilter = true; }
        } else {
          shouldFilter = true;
        }

        if (shouldFilter) {
          this.updateRecordArray(array, filter, type, clientId);
        }
      }
    }
  },

  /**
    @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(type, clientId) {
    var recordArrays = this.typeMapFor(type).recordArrays,
        filter;

    recordArrays.forEach(function(array) {
      filter = get(array, 'filterFunction');
      this.updateRecordArray(array, filter, type, clientId);
    }, this);

    // loop through all manyArrays containing an unloaded copy of this
    // clientId and notify them that the record was loaded.
    var manyArrays = this.loadingRecordArrays[clientId];

    if (manyArrays) {
      for (var i=0, l=manyArrays.length; i<l; i++) {
        manyArrays[i].loadedRecord();
      }

      this.loadingRecordArrays[clientId] = null;
    }
  },

  /**
    @private

    Update an individual filter.

    @param {DS.FilteredRecordArray} array
    @param {Function} filter
    @param {Class} type
    @param {Number|String} clientId
  */
  updateRecordArray: function(array, filter, type, clientId) {
    var shouldBeInArray, record;

    if (!filter) {
      shouldBeInArray = true;
    } else {
      record = this.findByClientId(type, clientId);
      shouldBeInArray = filter(record);
    }

    var content = get(array, 'content');
    var alreadyInArray = content.indexOf(clientId) !== -1;

    var recordArrays = this.recordArraysForClientId(clientId);

    if (shouldBeInArray && !alreadyInArray) {
      recordArrays.add(array);
      content.pushObject(clientId);
    } else if (!shouldBeInArray && alreadyInArray) {
      recordArrays.remove(array);
      content.removeObject(clientId);
    }
  },

  /**
    @private

    When a record is deleted, it is removed from all its
    record arrays.

    @param {DS.Model} record
  */
  removeFromRecordArrays: function(record) {
    var clientId = get(record, 'clientId');
    var recordArrays = this.recordArraysForClientId(clientId);

    recordArrays.forEach(function(array) {
      var content = get(array, 'content');
      content.removeObject(clientId);
    });
  },

  // ............
  // . INDEXING .
  // ............

  /**
    @private

    Return a list of all `DS.RecordArray`s a clientId is
    part of.

    @return {Object(clientId: Ember.OrderedSet)}
  */
  recordArraysForClientId: function(clientId) {
    var recordArrays = get(this, 'recordArraysByClientId');
    var ret = recordArrays[clientId];

    if (!ret) {
      ret = recordArrays[clientId] = Ember.OrderedSet.create();
    }

    return ret;
  },

  typeMapFor: function(type) {
    var typeMaps = get(this, 'typeMaps');
    var guidForType = Ember.guidFor(type);

    var typeMap = typeMaps[guidForType];

    if (typeMap) {
      return typeMap;
    } else {
      return (typeMaps[guidForType] =
        {
          idToCid: {},
          clientIds: [],
          recordArrays: []
      });
    }
  },

  /** @private

    For a given type and id combination, returns the client id used by the store.
    If no client id has been assigned yet, one will be created and returned.

    @param {DS.Model} type
    @param {String|Number} id
  */
  clientIdForId: function(type, id) {
    id = coerceId(id);

    var clientId = this.typeMapFor(type).idToCid[id];
    if (clientId !== undefined) { return clientId; }

    return this.pushHash(UNLOADED, id, type);
  },

  /**
    @private

    This method works exactly like `clientIdForId`, but does not
    require looking up the `typeMap` for every `clientId` and
    invoking a method per `clientId`.
  */
  clientIdsForIds: function(type, ids) {
    var typeMap = this.typeMapFor(type),
        idToClientIdMap = typeMap.idToCid;

    return map(ids, function(id) {
      id = coerceId(id);

      var clientId = idToClientIdMap[id];
      if (clientId) { return clientId; }
      return this.pushHash(UNLOADED, id, type);
    }, this);
  },

  typeForClientId: function(clientId) {
    return this.clientIdToType[clientId];
  },

  idForClientId: function(clientId) {
    return this.clientIdToId[clientId];
  },

  // ................
  // . LOADING DATA .
  // ................

  /**
    Load a new data hash 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} hash the data hash to load
  */
  load: function(type, id, hash) {
    if (hash === undefined) {
      hash = id;

      var adapter = this.adapterForType(type);
      id = adapter.extractId(type, hash);
    }

    id = coerceId(id);

    var typeMap = this.typeMapFor(type),
        cidToHash = this.clientIdToHash,
        clientId = typeMap.idToCid[id];

    if (clientId !== undefined) {
      cidToHash[clientId] = hash;

      var record = this.recordCache[clientId];
      if (record) {
        record.loadedData();
      }
    } else {
      clientId = this.pushHash(hash, id, type);
    }

    this.updateRecordArrays(type, clientId);

    return { id: id, clientId: clientId };
  },

  loadMany: function(type, ids, hashes) {
    var clientIds = Ember.A([]);

    if (hashes === undefined) {
      hashes = ids;
      ids = [];

      var adapter = this.adapterForType(type);

      ids = map(hashes, function(hash) {
        return adapter.extractId(type, hash);
      });
    }

    for (var i=0, l=get(ids, 'length'); i<l; i++) {
      var loaded = this.load(type, ids[i], hashes[i]);
      clientIds.pushObject(loaded.clientId);
    }

    return { clientIds: clientIds, ids: ids };
  },

  /** @private

    Stores a data hash for the specified type and id combination and returns
    the client id.

    @param {Object} hash
    @param {String|Number} id
    @param {DS.Model} type
    @returns {Number}
  */
  pushHash: function(hash, id, type) {
    var typeMap = this.typeMapFor(type);

    var idToClientIdMap = typeMap.idToCid,
        clientIdToIdMap = this.clientIdToId,
        clientIdToTypeMap = this.clientIdToType,
        clientIds = typeMap.clientIds,
        cidToHash = this.clientIdToHash;

    var clientId = ++this.clientIdCounter;

    cidToHash[clientId] = hash;
    clientIdToTypeMap[clientId] = type;

    // if we're creating an item, this process will be done
    // later, once the object has been persisted.
    if (id) {
      idToClientIdMap[id] = clientId;
      clientIdToIdMap[clientId] = id;
    }

    clientIds.push(clientId);

    return clientId;
  },

  // ..........................
  // . RECORD MATERIALIZATION .
  // ..........................

  materializeRecord: function(type, clientId, id) {
    var record;

    this.recordCache[clientId] = record = type._create({
      store: this,
      clientId: clientId,
    });

    set(record, 'id', id);

    get(this, 'defaultTransaction').adoptRecord(record);

    record.loadingData();
    return record;
  },

  isMaterialized: function(record) {
    var clientId = get(record, 'clientId');
    return this.clientIdToHash[clientId] === MATERIALIZED;
  },

  destroy: function() {
    if (get(DS, 'defaultStore') === this) {
      set(DS, 'defaultStore', null);
    }

    return this._super();
  },

  // ........................
  // . RELATIONSHIP CHANGES .
  // ........................

  addRelationshipChangeFor: function(clientId, key, change) {
    var changes = this.relationshipChanges;
    if (!(clientId in changes)) {
      changes[clientId] = {};
    }

    changes[clientId][key] = change;
  },

  removeRelationshipChangeFor: function(clientId, key) {
    var changes = this.relationshipChanges;
    if (!(clientId in changes)) {
      return;
    }

    delete changes[clientId][key];
  },

  relationshipChangeFor: function(clientId, key) {
    var changes = this.relationshipChanges;
    if (!(clientId in changes)) {
      return;
    }

    return changes[clientId][key];
  },

  relationshipChangesFor: function(clientId) {
    return this.relationshipChanges[clientId];
  },

  // ......................
  // . PER-TYPE ADAPTERS
  // ......................

  adapterForType: function(type) {
    this._reifyMappings('adapters');

    var adapter = this._adaptersMap.get(type);

    if (adapter) { return adapter; }

    return this.get('_adapter');
  }
});

DS.Store.reopenClass({
  registerAdapter: function(type, adapter) {
    var map = this._adaptersMap || new Ember.Map();

    map.set(type, adapter);

    this._adaptersMap = map;
  }
});

})();



(function() {
var get = Ember.get, set = Ember.set, guidFor = Ember.guidFor;

/**
  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.
*/

var stateProperty = Ember.computed(function(key) {
  var parent = get(this, 'parentState');
  if (parent) {
    return get(parent, key);
  }
}).property();

var isEmptyObject = function(object) {
  for (var name in object) {
    if (object.hasOwnProperty(name)) { return false; }
  }

  return true;
};

var hasDefinedProperties = function(object) {
  for (var name in object) {
    if (object.hasOwnProperty(name) && object[name]) { return true; }
  }

  return false;
};

var didChangeData = function(manager) {
  var record = get(manager, 'record');
  record.materializeData();
};

var setProperty = function(manager, context) {
  var value = context.value,
      key = context.key,
      record = get(manager, 'record'),
      adapterValue = get(record, 'data.attributes')[key];

  if (value === adapterValue) {
    record.removeDirtyFactor(key);
  } else {
    record.addDirtyFactor(key);
  }

  updateRecordArrays(manager);
};

// Whenever a property is set, recompute all dependent filters
var updateRecordArrays = function(manager) {
  var record = manager.get('record');
  record.updateRecordArraysLater();
};

DS.State = Ember.State.extend({
  isLoaded: 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({
    // TRANSITIONS
    enter: function(manager) {
      var dirtyType = get(this, 'dirtyType'),
          record = get(manager, 'record');

      record.withTransaction(function (t) {
        t.recordBecameDirty(dirtyType, record);
      });
    },

    // EVENTS
    setProperty: setProperty,

    willCommit: function(manager) {
      manager.transitionTo('inFlight');
    },

    becameClean: function(manager) {
      var record = get(manager, 'record'),
          dirtyType = get(this, 'dirtyType');

      record.withTransaction(function(t) {
        t.recordBecameClean(dirtyType, record);
      });

      manager.transitionTo('loaded.saved');
    },

    becameInvalid: function(manager) {
      var dirtyType = get(this, 'dirtyType'),
          record = get(manager, 'record');

      record.withTransaction(function (t) {
        t.recordBecameInFlight(dirtyType, record);
      });

      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 dirtyType = get(this, 'dirtyType'),
          record = get(manager, 'record');

      // create inFlightDirtyFactors
      record.becameInFlight();

      record.withTransaction(function (t) {
        t.recordBecameInFlight(dirtyType, record);
      });
    },

    // EVENTS
    didCommit: function(manager) {
      var dirtyType = get(this, 'dirtyType'),
          record = get(manager, 'record');

      record.withTransaction(function(t) {
        t.recordBecameClean('inflight', record);
      });

      manager.transitionTo('saved');
      manager.send('invokeLifecycleCallbacks', dirtyType);
    },

    becameInvalid: function(manager, errors) {
      var record = get(manager, 'record');

      set(record, 'errors', errors);

      record.restoreDirtyFactors();

      manager.transitionTo('invalid');
      manager.send('invokeLifecycleCallbacks');
    },

    becameError: function(manager) {
      manager.transitionTo('error');
      manager.send('invokeLifecycleCallbacks');
    },

    didChangeData: didChangeData
  }),

  // 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.recordBecameClean('inflight', record);
      });
    },

    // EVENTS
    deleteRecord: function(manager) {
      manager.transitionTo('deleted');
      get(manager, 'record').clearRelationships();
    },

    setProperty: function(manager, context) {
      var record = get(manager, 'record'),
          errors = get(record, 'errors'),
          key = context.key;

      set(errors, key, null);

      if (!hasDefinedProperties(errors)) {
        manager.send('becameValid');
      }

      setProperty(manager, context);
    },

    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,

  // TRANSITIONS
  setup: function(manager) {
    var record = get(manager, 'record');
    record.addDirtyFactor('@created');
  },

  exit: function(manager) {
    var record = get(manager, 'record');
    record.removeDirtyFactor('@created');
  }
});

var updatedState = DirtyState.create({
  dirtyType: 'updated'
});

createdState.states.uncommitted.reopen({
  deleteRecord: function(manager) {
    var record = get(manager, 'record');

    record.withTransaction(function(t) {
      t.recordIsMoving('created', record);
    });

    manager.transitionTo('deleted.saved');
    record.clearRelationships();
  }
});

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');

    record.withTransaction(function(t) {
      t.recordIsMoving('updated', record);
    });

    manager.transitionTo('deleted');
    get(manager, 'record').clearRelationships();
  }
});

var states = {
  rootState: Ember.State.create({
    // FLAGS
    isLoaded: 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({
      // TRANSITIONS
      exit: function(manager) {
        var record = get(manager, 'record');
        record.trigger('didLoad');
      },

      // EVENTS
      loadedData: function(manager) {
        var record = get(manager, 'record');
        if (!get(record, 'isMaterialized')) {
          didChangeData(manager);
        }
        manager.transitionTo('loaded');
      }
    }),

    // 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

      // If there are no local changes to a record, it remains
      // in the `saved` state.
      saved: DS.State.create({

        // EVENTS
        setProperty: setProperty,
        didChangeData: didChangeData,
        loadedData: didChangeData,

        becameDirty: function(manager) {
          manager.transitionTo('updated');
        },

        deleteRecord: function(manager) {
          manager.transitionTo('deleted');
          get(manager, 'record').clearRelationships();
        },

        willCommit: function(manager) {
          manager.transitionTo('relationshipsInFlight');
        },

        invokeLifecycleCallbacks: function(manager, dirtyType) {
          var record = get(manager, 'record');
          if (dirtyType === 'created') {
            record.trigger('didCreate', record);
          } else {
            record.trigger('didUpdate', record);
          }
        }
      }),

      relationshipsInFlight: Ember.State.create({
        // TRANSITIONS
        enter: function(manager) {
          var record = get(manager, 'record');

          record.withTransaction(function (t) {
            t.recordBecameInFlight('clean', record);
          });
        },

        // EVENTS
        didCommit: function(manager) {
          var record = get(manager, 'record');

          record.withTransaction(function(t) {
            t.recordBecameClean('inflight', record);
          });

          manager.transitionTo('saved');

          manager.send('invokeLifecycleCallbacks');
        }
      }),

      // 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');

        record.addDirtyFactor('@deleted');

        store.removeFromRecordArrays(record);
      },

      exit: function(manager) {
        var record = get(manager, 'record');

        record.removeDirtyFactor('@deleted');
      },

      // 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({
        // TRANSITIONS
        enter: function(manager) {
          var record = get(manager, 'record');

          record.withTransaction(function(t) {
            t.recordBecameDirty('deleted', record);
          });
        },

        // EVENTS
        willCommit: function(manager) {
          manager.transitionTo('inFlight');
        },

        rollback: function(manager) {
          get(manager, 'record').rollback();
        },

        becameClean: function(manager) {
          var record = get(manager, 'record');

          record.withTransaction(function(t) {
            t.recordBecameClean('deleted', record);
          });

          manager.transitionTo('loaded.saved');
        }
      }),

      // 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');

          // create inFlightDirtyFactors
          record.becameInFlight();

          record.withTransaction(function (t) {
            t.recordBecameInFlight('deleted', record);
          });
        },

        // EVENTS
        didCommit: function(manager) {
          var record = get(manager, 'record');

          record.withTransaction(function(t) {
            t.recordBecameClean('inflight', 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,

        invokeLifecycleCallbacks: function(manager) {
          var record = get(manager, 'record');
          record.trigger('didDelete', 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
});

})();



(function() {
var get = Ember.get, set = Ember.set, none = Ember.none;

var retrieveFromCurrentState = Ember.computed(function(key) {
  return get(get(this, 'stateManager.currentState'), key);
}).property('stateManager.currentState');

DS.Model = Ember.Object.extend(Ember.Evented, {
  isLoaded: retrieveFromCurrentState,
  isDirty: retrieveFromCurrentState,
  isSaving: retrieveFromCurrentState,
  isDeleted: retrieveFromCurrentState,
  isError: retrieveFromCurrentState,
  isNew: retrieveFromCurrentState,
  isValid: retrieveFromCurrentState,

  clientId: null,
  transaction: null,
  stateManager: null,
  errors: null,

  /**
    Create a JSON representation of the record, using the serialization
    strategy of the store's adapter.

    Available options:

    * `includeId`: `true` if the record's ID should be included in the
      JSON representation.

    @param {Object} options
    @returns {Object} an object whose values are primitive JSON values only
  */
  toJSON: function(options) {
    var store = get(this, 'store');
    return store.toJSON(this, options);
  },

  didLoad: Ember.K,
  didUpdate: Ember.K,
  didCreate: Ember.K,
  didDelete: Ember.K,
  becameInvalid: Ember.K,
  becameError: Ember.K,

  data: Ember.computed(function() {
    if (!this._data) {
      this.materializeData();
    }

    return this._data;
  }).property(),

  isMaterialized: function() {
    return get(this, 'store').isMaterialized(this);
  }.property('data'),

  materializeData: function() {
    this.setupData();
    get(this, 'store').materializeData(this);

    this.suspendAssociationObservers(function() {
      this.notifyPropertyChange('data');
    });
  },

  _data: null,

  init: function() {
    var stateManager = DS.StateManager.create({ record: this });
    set(this, 'stateManager', stateManager);

    this.setup();

    stateManager.goToState('empty');
  },

  setup: function() {
    this._relationshipChanges = {};
    this._dirtyFactors = Ember.OrderedSet.create();
    this._inFlightDirtyFactors = Ember.OrderedSet.create();
    this._dirtyReasons = { hasMany: 0, belongsTo: 0, attribute: 0 };
  },

  willDestroy: function() {
    if (!get(this, 'isDeleted')) {
      this.deleteRecord();
    }
  },

  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');
  },

  setProperty: function(key, value) {
    this.send('setProperty', { key: key, value: value });
  },

  deleteRecord: function() {
    this.send('deleteRecord');
  },

  clearRelationships: function() {
    this.eachAssociation(function(name, relationship) {
      if (relationship.kind === 'belongsTo') {
        set(this, name, null);
      } else if (relationship.kind === 'hasMany') {
        get(this, name).clear();
      }
    }, this);
  },

  updateRecordArrays: function() {
    var store = get(this, 'store');
    if (store) {
      store.hashWasUpdated(this.constructor, get(this, 'clientId'), this);
    }
  },

  /**
    If the adapter did not return a hash in response to a commit,
    merge the changed attributes and associations 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.updateRecordArraysLater();
  },

  dataDidChange: Ember.observer(function() {
    var associations = get(this.constructor, 'associationsByName'),
        hasMany = get(this, 'data').hasMany, store = get(this, 'store'),
        idToClientId = store.idToClientId,
        cachedValue;

    this.updateRecordArraysLater();

    associations.forEach(function(name, association) {
      if (association.kind === 'hasMany') {
        cachedValue = this.cacheFor(name);

        if (cachedValue) {
          var key = name,
              ids = hasMany[key] || [];

          var clientIds, unsavedClientIds, combinedIds;

          clientIds = Ember.EnumerableUtils.map(ids, function(id) {
            return store.clientIdForId(association.type, id);
          });
          unsavedClientIds = cachedValue.map(function(obj) {
            return obj.get('isSaving') ? obj.get('clientId') : null;
          });
          combinedIds = clientIds.concat(unsavedClientIds).compact();

          set(cachedValue, 'content', Ember.A(combinedIds));
        }
      }
    }, this);
  }, 'data'),

  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, ids) {
    this._data.hasMany[name] = ids;
  },

  materializeBelongsTo: function(name, id) {
    this._data.belongsTo[name] = id;
  },

  // DIRTINESS FACTORS
  //
  // These methods allow the manipulation of various "dirtiness factors" on
  // the current record. A dirtiness factor can be:
  //
  // * the name of a dirty attribute
  // * the name of a dirty relationship
  // * @created, if the record was created
  // * @deleted, if the record was deleted
  //
  // This allows adapters to acknowledge updates to any of the dirtiness
  // factors one at a time, and keeps the bookkeeping for full acknowledgement
  // in the record itself.

  addDirtyFactor: function(name) {
    var dirtyFactors = this._dirtyFactors, becameDirty;
    if (dirtyFactors.has(name)) { return; }

    if (this._dirtyFactors.isEmpty()) { becameDirty = true; }

    this._addDirtyFactor(name);

    if (becameDirty && name !== '@created' && name !== '@deleted') {
      this.send('becameDirty');
    }
  },

  _addDirtyFactor: function(name) {
    this._dirtyFactors.add(name);

    var reason = get(this.constructor, 'fields').get(name);
    this._dirtyReasons[reason]++;
  },

  removeDirtyFactor: function(name) {
    var dirtyFactors = this._dirtyFactors, becameClean = true;
    if (!dirtyFactors.has(name)) { return; }

    this._dirtyFactors.remove(name);

    var reason = get(this.constructor, 'fields').get(name);
    this._dirtyReasons[reason]--;

    if (!this._dirtyFactors.isEmpty()) { becameClean = false; }

    if (becameClean && name !== '@created' && name !== '@deleted') {
      this.send('becameClean');
    }
  },

  removeDirtyFactors: function() {
    this._dirtyFactors.clear();
    this._dirtyReasons = { hasMany: 0, belongsTo: 0, attribute: 0 };
    this.send('becameClean');
  },

  rollback: function() {
    this.setup();
    this.send('becameClean');

    this.suspendAssociationObservers(function() {
      this.notifyPropertyChange('data');
    });
  },

  isDirtyBecause: function(reason) {
    return this._dirtyReasons[reason] > 0;
  },

  isCommittingBecause: function(reason) {
    return this._inFlightDirtyReasons[reason] > 0;
  },

  /**
    @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.
  */
  suspendAssociationObservers: function(callback, binding) {
    var observers = get(this.constructor, 'associationNames').belongsTo;
    var self = this;

    try {
      this._suspendedAssociations = true;
      Ember._suspendObservers(self, observers, null, 'belongsToDidChange', function() {
        Ember._suspendBeforeObservers(self, observers, null, 'belongsToWillChange', function() {
          callback.call(binding || self);
        });
      });
    } finally {
      this._suspendedAssociations = false;
    }
  },

  becameInFlight: function() {
    this._inFlightDirtyFactors = this._dirtyFactors.copy();
    this._inFlightDirtyReasons = this._dirtyReasons;
    this._dirtyFactors.clear();
    this._dirtyReasons = { hasMany: 0, belongsTo: 0, attribute: 0 };
  },

  restoreDirtyFactors: function() {
    this._inFlightDirtyFactors.forEach(function(factor) {
      this._addDirtyFactor(factor);
    }, this);

    this._inFlightDirtyFactors.clear();
    this._inFlightDirtyReasons = null;
  },

  removeInFlightDirtyFactor: function(name) {
    // It is possible for a record to have been materialized
    // or loaded after the transaction was committed. This
    // can happen with relationship changes involving
    // unmaterialized records that subsequently load.
    //
    // XXX If a record is materialized after it was involved
    // while it is involved in a relationship change, update
    // it to be in the same state as if it had already been
    // materialized.
    //
    // For now, this means that we have a blind spot where
    // a record was loaded and its relationships changed
    // while the adapter is in the middle of persisting
    // a relationship change involving it.
    if (this._inFlightDirtyFactors.has(name)) {
      this._inFlightDirtyFactors.remove(name);
      if (this._inFlightDirtyFactors.isEmpty()) {
        this._inFlightDirtyReasons = null;
        this.send('didCommit');
      }
    }
  },

  removeInFlightDirtyFactorsForAttributes: function() {
    this.eachAttribute(function(name) {
      this.removeInFlightDirtyFactor(name);
    }, this);
  },

  // FOR USE DURING COMMIT PROCESS

  adapterDidUpdateAttribute: function(attributeName, value) {
    this.removeInFlightDirtyFactor(attributeName);

    // 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();
  },

  adapterDidUpdateHasMany: function(name) {
    this.removeInFlightDirtyFactor(name);

    var cachedValue = this.cacheFor(name),
        hasMany = get(this, 'data').hasMany,
        store = get(this, 'store');

    var associations = get(this.constructor, 'associationsByName'),
        association = associations.get(name),
        idToClientId = store.idToClientId;

    if (cachedValue) {
      var key = name,
          ids = hasMany[key] || [];

      var clientIds;

      clientIds = Ember.EnumerableUtils.map(ids, function(id) {
        return store.clientIdForId(association.type, id);
      });

      set(cachedValue, 'content', Ember.A(clientIds));
      set(cachedValue, 'isLoaded', true);
    }

    this.updateRecordArraysLater();
  },

  adapterDidDelete: function() {
    this.removeInFlightDirtyFactor('@deleted');

    this.updateRecordArraysLater();
  },

  adapterDidCreate: function() {
    this.removeInFlightDirtyFactor('@created');

    this.updateRecordArraysLater();
  },

  adapterDidInvalidate: function(errors) {
    this.send('becameInvalid', errors);
  },

  /**
    @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);
    return store[methodName].apply(store, args);
  };
};

DS.Model.reopenClass({
  isLoaded: storeAlias('recordIsLoaded'),
  find: storeAlias('find'),
  all: storeAlias('all'),
  filter: storeAlias('filter'),

  _create: DS.Model.create,

  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.");
  },

  createRecord: storeAlias('createRecord')
});

})();



(function() {
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);
  }
});

function getAttr(record, options, key) {
  var attributes = get(record, 'data').attributes;
  var value = attributes[key];

  if (value === undefined) {
    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) {
    var data;

    if (arguments.length === 2) {
      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(), key !== 'id');
      this.setProperty(key, value);
    } 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() {

})();



(function() {
var get = Ember.get, set = Ember.set,
    none = Ember.none;

var hasAssociation = function(type, options, one) {
  options = options || {};

  var meta = { type: type, isAssociation: true, options: options, kind: 'belongsTo' };

  return Ember.computed(function(key, value) {
    if (arguments.length === 2) {
      return value === undefined ? null : value;
    }

    var data = get(this, 'data').belongsTo,
        store = get(this, 'store'), id;

    if (typeof type === 'string') {
      type = get(this, type, false) || get(window, type);
    }

    id = data[key];
    return id ? store.find(type, id) : null;
  }).property('data').meta(meta);
};

DS.belongsTo = function(type, options) {
  Ember.assert("The type passed to DS.belongsTo must be defined", !!type);
  return hasAssociation(type, options);
};

/**
  These observers observe all `belongsTo` relationships on the record. See
  `associations/ext` to see how these observers get their dependencies.

  The observers use `removeFromContent` and `addToContent` to avoid
  going through the public Enumerable API that would try to set the
  inverse (again) and trigger an infinite loop.
*/

DS.Model.reopen({
  /** @private */
  belongsToWillChange: Ember.beforeObserver(function(record, key) {
    if (get(record, 'isLoaded')) {
      var oldParent = get(record, key);

      var childId = get(record, 'clientId'),
          store = get(record, 'store');

      var change = DS.OneToManyChange.forChildAndParent(childId, store, { belongsToName: key });

      if (change.oldParent === undefined) {
        change.oldParent = oldParent ? get(oldParent, 'clientId') : null;
      }
    }
  }),

  /** @private */
  belongsToDidChange: Ember.immediateObserver(function(record, key) {
    if (get(record, 'isLoaded')) {
      var change = get(record, 'store').relationshipChangeFor(get(record, 'clientId'), key),
          newParent = get(record, key);

      change.newParent = newParent ? get(newParent, 'clientId') : null;
      change.sync();
    }
  })
});

})();



(function() {
var get = Ember.get, set = Ember.set;
var hasAssociation = function(type, options) {
  options = options || {};

  var meta = { type: type, isAssociation: true, options: options, kind: 'hasMany' };

  return Ember.computed(function(key, value) {
    var data = get(this, 'data').hasMany,
        store = get(this, 'store'),
        ids, association;

    if (typeof type === 'string') {
      type = get(this, type, false) || get(window, type);
    }

    ids = data[key];
    association = store.findMany(type, ids || [], this, meta);
    set(association, 'owner', this);
    set(association, 'name', key);

    return association;
  }).property().meta(meta);
};

DS.hasMany = function(type, options) {
  Ember.assert("The type passed to DS.hasMany must be defined", !!type);
  return hasAssociation(type, options);
};

})();



(function() {
var get = Ember.get, set = Ember.set;

DS.Model.reopen({
  didDefineProperty: function(proto, key, value) {
    if (value instanceof Ember.Descriptor) {
      var meta = value.meta();

      if (meta.isAssociation && meta.kind === 'belongsTo') {
        Ember.addObserver(proto, key, null, 'belongsToDidChange');
        Ember.addBeforeObserver(proto, key, null, 'belongsToWillChange');
      }
    }
  }
});

DS.Model.reopenClass({
  typeForAssociation: function(name) {
    var association = get(this, 'associationsByName').get(name);
    return association && association.type;
  },

  associations: Ember.computed(function() {
    var map = Ember.Map.create();

    this.eachComputedProperty(function(name, meta) {
      if (meta.isAssociation) {
        var type = meta.type,
            typeList = map.get(type);

        if (typeof type === 'string') {
          type = get(this, type, false) || get(window, type);
          meta.type = type;
        }

        if (!typeList) {
          typeList = [];
          map.set(type, typeList);
        }

        typeList.push({ name: name, kind: meta.kind });
      }
    });

    return map;
  }),

  associationNames: Ember.computed(function() {
    var names = { hasMany: [], belongsTo: [] };

    this.eachComputedProperty(function(name, meta) {
      if (meta.isAssociation) {
        names[meta.kind].push(name);
      }
    });

    return names;
  }),

  associationsByName: Ember.computed(function() {
    var map = Ember.Map.create(), type;

    this.eachComputedProperty(function(name, meta) {
      if (meta.isAssociation) {
        meta.key = name;
        type = meta.type;

        if (typeof type === 'string') {
          type = get(this, type, false) || get(window, type);
          meta.type = type;
        }

        map.set(name, meta);
      }
    });

    return map;
  }),

  fields: Ember.computed(function() {
    var map = Ember.Map.create(), type;

    this.eachComputedProperty(function(name, meta) {
      if (meta.isAssociation) {
        map.set(name, meta.kind);
      } else if (meta.isAttribute) {
        map.set(name, 'attribute');
      }
    });

    return map;
  })
});

DS.Model.reopen({
  eachAssociation: function(callback, binding) {
    get(this.constructor, 'associationsByName').forEach(function(name, association) {
      callback.call(binding, name, association);
    });
  }
});

DS.inverseNameFor = function(modelType, inverseModelType, inverseAssociationKind) {
  var associationMap = get(modelType, 'associations'),
      possibleAssociations = associationMap.get(inverseModelType),
      possible, actual, oldValue;

  if (!possibleAssociations) { return; }

  for (var i = 0, l = possibleAssociations.length; i < l; i++) {
    possible = possibleAssociations[i];

    if (possible.kind === inverseAssociationKind) {
      actual = possible;
      break;
    }
  }

  if (actual) { return actual.name; }
};

DS.inverseTypeFor = function(modelType, associationName) {
  var associations = get(modelType, 'associationsByName'),
      association = associations.get(associationName);

  if (association) { return association.type; }
};

})();



(function() {
var get = Ember.get, set = Ember.set;

DS.OneToManyChange = function(options) {
  this.oldParent = options.oldParent;
  this.child = options.child;
  this.belongsToName = options.belongsToName;
  this.store = options.store;
  this.committed = {};
  this.awaiting = 0;
};

/** @private */
DS.OneToManyChange.create = function(options) {
  return new DS.OneToManyChange(options);
};

/** @private */
DS.OneToManyChange.forChildAndParent = function(childClientId, store, options) {
  var childType = store.typeForClientId(childClientId), key;

  if (options.parentType) {
    key = inverseBelongsToForHasMany(options.parentType, childType, options.hasManyName);
  } else {
    key = options.belongsToName;
  }

  var change = store.relationshipChangeFor(childClientId, key);

  if (!change) {
    change = DS.OneToManyChange.create({
      child: childClientId,
      store: store
    });

    store.addRelationshipChangeFor(childClientId, key, change);
  }

  change.belongsToName = key;

  return change;
};

DS.OneToManyChange.prototype = {
  /**
    Get the child type and ID, if available.

    @returns {Array} an array of type and ID
  */
  getChildTypeAndId: function() {
    return this.getTypeAndIdFor(this.child);
  },

  /**
    Get the old parent type and ID, if available.

    @returns {Array} an array of type and ID
  */
  getOldParentTypeAndId: function() {
    return this.getTypeAndIdFor(this.oldParent);
  },

  /**
    Get the new parent type and ID, if available.

    @returns {Array} an array of type and ID
  */
  getNewParentTypeAndId: function() {
    return this.getTypeAndIdFor(this.newParent);
  },

  /**
    Get the name of the relationship on the hasMany side.

    @returns {String}
  */
  getHasManyName: function() {
    var name = this.hasManyName, store = this.store, parent;

    if (!name) {
      parent = this.oldParent || this.newParent;
      if (!parent) { return; }

      var childType = store.typeForClientId(this.child);
      var inverseType = DS.inverseTypeFor(childType, this.belongsToName);
      name = DS.inverseNameFor(inverseType, childType, 'hasMany');
      this.hasManyName = name;
    }

    return name;
  },

  /**
    Get the name of the relationship on the belongsTo side.

    @returns {String}
  */
  getBelongsToName: function() {
    var name = this.belongsToName, store = this.store, parent;

    if (!name) {
      parent = this.oldParent || this.newParent;
      if (!parent) { return; }

      var childType = store.typeForClientId(this.child);
      var parentType = store.typeForClientId(parent);
      name = DS.inverseNameFor(childType, parentType, 'belongsTo', this.hasManyName);

      this.belongsToName = name;
    }

    return name;
  },

  /** @private */
  getTypeAndIdFor: function(clientId) {
    if (clientId) {
      var store = this.store;

      return [
        store.typeForClientId(clientId),
        store.idForClientId(clientId)
      ];
    }
  },

  /** @private */
  destroy: function() {
    var childClientId = this.child,
        belongsToName = this.getBelongsToName(),
        hasManyName = this.getHasManyName(),
        store = this.store,
        child, oldParent, newParent, transaction;

    store.removeRelationshipChangeFor(childClientId, belongsToName);

    if (child = this.getChild()) {
      child.removeDirtyFactor(belongsToName);
    }

    if (oldParent = this.getOldParent()) {
      oldParent.removeDirtyFactor(hasManyName);
    }

    if (newParent = this.getNewParent()) {
      newParent.removeDirtyFactor(hasManyName);
    }

    if (transaction = this.transaction) {
      transaction.relationshipBecameClean(this);
    }
  },

  /** @private */
  getByClientId: function(clientId) {
    var store = this.store;

    // return null or undefined if the original clientId was null or undefined
    if (!clientId) { return clientId; }

    if (store.recordIsMaterialized(clientId)) {
      return store.findByClientId(null, clientId);
    }
  },

  /** @private */
  getChild: function() {
    return this.getByClientId(this.child);
  },

  /** @private */
  getOldParent: function() {
    return this.getByClientId(this.oldParent);
  },

  /** @private */
  getNewParent: function() {
    return this.getByClientId(this.newParent);
  },

  /** @private */
  getLastParent: function() {
    return this.getByClientId(this.lastParent);
  },

  /**
    @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(child, oldParent, newParent, hasManyName, belongsToName) {
    var transactions = Ember.A();

    if (child)     { transactions.pushObject(get(child, 'transaction')); }
    if (oldParent) { transactions.pushObject(get(oldParent, 'transaction')); }
    if (newParent) { transactions.pushObject(get(newParent, '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) {
      transaction.add(child);
      if (oldParent) { transaction.add(oldParent); }
      if (newParent) { transaction.add(newParent); }
    } else {
      transaction = transactions.objectAt(0);
    }

    this.transaction = transaction;
    return transaction;
  },

  /** @private */
  sync: function() {
    var oldParentClientId = this.oldParent,
        newParentClientId = this.newParent,
        hasManyName = this.getHasManyName(),
        belongsToName = this.getBelongsToName(),
        child = this.getChild(),
        oldParent, newParent;

    //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);

    // This code path is reached if a child record was added to a new ManyArray
    // without being removed from its old ManyArray. Below, this method will
    // ensure (via `removeObject`) that the record is no longer in the old
    // ManyArray.
    if (oldParentClientId === undefined) {
      // Since the child was added to a ManyArray, we know it was materialized.
      oldParent = get(child, belongsToName);

      if (oldParent) {
        this.oldParent = get(oldParent, 'clientId');
      } else {
        this.oldParent = null;
      }
    } else {
      oldParent = this.getOldParent();
    }

    // Coalesce changes from A to B and back to A.
    if (oldParentClientId === newParentClientId) {
      // If we have gone from oldParent to newParent and back to oldParent,
      // there must be a materialized child.

      // If our lastParent clientId is not null, there will always be a
      // materialized lastParent.
      var lastParent = this.getLastParent();
      if (lastParent) {
        get(lastParent, hasManyName).removeObject(child);
      }

      // Don't do anything if the belongsTo is going from null back to null
      if (oldParent) {
        get(oldParent, hasManyName).addObject(child);
      }

      this.destroy();
      return;
    }

    //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);

    newParent = this.getNewParent();
    var transaction = this.ensureSameTransaction(child, oldParent, newParent, hasManyName, belongsToName);

    transaction.relationshipBecameDirty(this);

    // Next, make sure that all three side of the association reflect the
    // state of the OneToManyChange, while making sure to avoid an
    // infinite loop.


    // If there is an `oldParent` and the `oldParent` is different to
    // the `newParent`, use the idempotent `removeObject` to ensure
    // that the record is no longer in its ManyArray. The `removeObject`
    // method only has an effect if:
    //
    // 1. The change happened from the belongsTo side
    // 2. The record was moved to a new parent without explicitly
    //    removing it from the old parent first.
    if (oldParent && oldParent !== newParent) {
      get(oldParent, hasManyName).removeObject(child);

      if (get(oldParent, 'isLoaded')) {
        oldParent.addDirtyFactor(hasManyName);
      }
    }

    // If there is a `newParent`, use the idempotent `addObject`
    // to ensure that the record is in its ManyArray. The `addObject`
    // method only has an effect if the change happened from the
    // belongsTo side.
    if (newParent) {
      get(newParent, hasManyName).addObject(child);

      if (get(newParent, 'isLoaded')) {
        newParent.addDirtyFactor(hasManyName);
      }
    }

    if (child) {
      // Only set the belongsTo on the child if it is not already the
      // newParent. This happens if the change happened from the
      // ManyArray side.
      if (get(child, belongsToName) !== newParent) {
        set(child, belongsToName, newParent);
      }

      if (get(child, 'isLoaded')) {
        child.addDirtyFactor(belongsToName);
      }
    }

    // If this change is later reversed (A->B followed by B->A),
    // we will need to remove the child from this parent. Save
    // it off as `lastParent` so we can do that.
    this.lastParent = newParentClientId;
  },

  /** @private */
  adapterDidUpdate: function() {
    if (this.awaiting > 0) { return; }
    var belongsToName = this.getBelongsToName();
    var hasManyName = this.getHasManyName();
    var oldParent, newParent, child;

    if (oldParent = this.getOldParent()) { oldParent.removeInFlightDirtyFactor(hasManyName); }
    if (newParent = this.getNewParent()) { newParent.removeInFlightDirtyFactor(hasManyName); }
    if (child = this.getChild())         { child.removeInFlightDirtyFactor(belongsToName); }
    this.destroy();
  },

  wait: function() {
    this.awaiting++;
  },

  done: function() {
    this.awaiting--;

    if (this.awaiting === 0) {
      this.adapterDidUpdate();
    }
  }
};

function inverseBelongsToForHasMany(parentType, childType, hasManyName) {
  // Get the options passed to the parent's DS.hasMany()
  var options = parentType.metaForProperty(hasManyName).options;
  var belongsToName;

  if (belongsToName = options.inverse) {
    return belongsToName;
  }

  return DS.inverseNameFor(childType, parentType, 'belongsTo');
}

})();



(function() {

})();



(function() {
var set = Ember.set;

Ember.onLoad('Ember.Application', function(Application) {
  Application.registerInjection({
    name: "store",
    before: "controllers",

    injection: function(app, stateManager, property) {
      if (!stateManager) { return; }
      if (property === 'Store') {
        set(stateManager, 'store', app[property].create());
      }
    }
  });

  Application.registerInjection({
    name: "giveStoreToControllers",
    after: ['store','controllers'],

    injection: function(app, stateManager, property) {
      if (!stateManager) { return; }
      if (/^[A-Z].*Controller$/.test(property)) {
        var controllerName = property.charAt(0).toLowerCase() + property.substr(1);
        var store = stateManager.get('store');
        var controller = stateManager.get(controllerName);
        if(!controller) { return; }

        controller.set('store', store);
      }
    }
  });
});

})();



(function() {
var get = Ember.get, set = Ember.set;

var passthrough = {
  fromJSON: function(value) {
    return value;
  },

  toJSON: function(value) {
    return value;
  }
};

DS.Serializer = Ember.Object.extend({
  init: function() {
    // By default, the JSON types are passthrough transforms
    this.transforms = {
      'string': passthrough,
      'number': passthrough,
      'boolean': passthrough
    };

    this.mappings = Ember.Map.create();
  },

  /**
    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.
  */

  _keyForAttributeName: function(type, name) {
    return this._keyForJSONKey('keyForAttributeName', type, name);
  },

  keyForAttributeName: function(type, name) {
    return name;
  },

  _keyForBelongsTo: function(type, name) {
    return this._keyForJSONKey('keyForBelongsTo', type, name);
  },

  keyForBelongsTo: function(type, name) {
    return this.keyForAttributeName(type, name);
  },

  _keyForHasMany: function(type, name) {
    return this._keyForJSONKey('keyForHasMany', type, name);
  },

  keyForHasMany: function(type, name) {
    return this.keyForAttributeName(type, name);
  },

  _keyForJSONKey: function(publicMethod, type, name) {
    var mapping = this.mappingForType(type),
        mappingOptions = mapping && mapping[name],
        key = mappingOptions && mappingOptions.key;

    if (key) {
      return key;
    } else {
      return this[publicMethod](type, name);
    }
  },

  _primaryKey: function(type) {
    var mapping = this.mappingForType(type),
        primaryKey = mapping && mapping.primaryKey;

    if (primaryKey) {
      return primaryKey;
    } else {
      return this.primaryKey(type);
    }
  },

  primaryKey: function(type) {
    return "id";
  },

  /**
    SERIALIZATION

    These methods are responsible for taking a record and
    producing a JSON object.

    These methods are designed in layers, like a delicious 7-layer
    cake (but with fewer layers).

    The main entry point for serialization is the `toJSON`
    method, which takes the record and options.

    The `toJSON` 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 `toJSON` method. In general, however, you will want
    to override the hooks described below.

    ## Adding the ID

    The default `toJSON` 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 `toJSON` 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 `toJSON`.

    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 `toJSON` 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 `transformValueToJSON` 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 `transformValueToJSON`
    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, `toJSON` 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.
  */

  transformValueToJSON: function(value, attributeType) {
    var transform = this.transforms[attributeType];

    Ember.assert("You tried to use an attribute type (" + attributeType + ") that has not been registered", transform);
    return transform.toJSON(value);
  },

  toJSON: function(record, options) {
    options = options || {};

    var hash = {}, id;

    if (options.includeId) {
      if (id = get(record, 'id')) {
        this.addId(hash, record.constructor, id);
      }
    }

    this.addAttributes(hash, record);

    this.addRelationships(hash, record);

    return hash;
  },

  addAttributes: function(hash, record) {
    record.eachAttribute(function(name, attribute) {
      this.addAttribute(hash, record, name, attribute.type);
    }, this);
  },

  addAttribute: function(hash, record, attributeName, attributeType) {
    var key = this._keyForAttributeName(record.constructor, attributeName);
    var value = get(record, attributeName);

    hash[key] = this.transformValueToJSON(value, attributeType);
  },

  addId: function(hash, type, id) {
    var primaryKey = this._primaryKey(type);

    hash[primaryKey] = this.serializeId(id);
  },

  addRelationships: function(hash, record) {
    record.eachAssociation(function(name, relationship) {
      var key;

      if (relationship.kind === 'belongsTo') {
        key = this._keyForBelongsTo(record.constructor, name);

        this.addBelongsTo(hash, record, key, relationship);
      } else if (relationship.kind === 'hasMany') {
        key = this._keyForHasMany(record.constructor, name);

        this.addHasMany(hash, record, key, relationship);
      }
    }, this);
  },

  addBelongsTo: Ember.K,
  addHasMany: Ember.K,

  /**
   Allows IDs to be normalized before being sent back to the
   persistence layer. 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.
  */
  serializeId: function(id) {
    if (isNaN(id)) { return id; }
    return +id;
  },

  serializeIds: function(ids) {
    return Ember.EnumerableUtils.map(ids, function(id) {
      return this.serializeId(id);
    }, this);
  },

  /**
    DESERIALIZATION
  */

  transformValueFromJSON: function(value, attributeType) {
    var transform = this.transforms[attributeType];

    Ember.assert("You tried to use a attribute type (" + attributeType + ") that has not been registered", transform);
    return transform.fromJSON(value);
  },

  materializeFromJSON: function(record, hash) {
    if (!hash) { return; }
    if (Ember.none(get(record, 'id'))) {
      record.materializeId(this.extractId(record.constructor, hash));
    }

    this.materializeAttributes(record, hash);
    this.materializeRelationships(record, hash);
  },

  materializeAttributes: function(record, hash) {
    record.eachAttribute(function(name, attribute) {
      this.materializeAttribute(record, hash, name, attribute.type);
    }, this);
  },

  materializeAttribute: function(record, hash, attributeName, attributeType) {
    var value = this.extractAttribute(record.constructor, hash, attributeName);
    value = this.transformValueFromJSON(value, attributeType);

    record.materializeAttribute(attributeName, value);
  },

  extractAttribute: function(type, hash, attributeName) {
    var key = this._keyForAttributeName(type, attributeName);
    return hash[key];
  },

  extractId: function(type, hash) {
    var primaryKey = this._primaryKey(type);

    // 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]+'';
  },

  materializeRelationships: function(record, hash) {
    record.eachAssociation(function(name, relationship) {
      if (relationship.kind === 'hasMany') {
        record.materializeHasMany(name, this.extractHasMany(record, hash, relationship));
      } else if (relationship.kind === 'belongsTo') {
        record.materializeBelongsTo(name, this.extractBelongsTo(record, hash, relationship));
      }
    }, this);
  },

  extractHasMany: function(record, hash, relationship) {
    var key = this._keyForHasMany(record.constructor, relationship.key);
    return hash[key];
  },

  extractBelongsTo: function(record, hash, relationship) {
    var key = this._keyForBelongsTo(record.constructor, relationship.key);
    return hash[key];
  },

  /**
    TRANSFORMS
  */

  registerTransform: function(type, transform) {
    this.transforms[type] = transform;
  },

  /**
    MAPPING CONVENIENCE
  */

  map: function(type, mappings) {
    this.mappings.set(type, mappings);
  },

  mappingForType: function(type) {
    this._reifyMappings();
    return this.mappings.get(type);
  },

  _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(window, 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;
  }
});


})();



(function() {
/**
  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({
        revision: 3,
        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 more information about the adapter API, please see `README.md`.
*/

var get = Ember.get, set = Ember.set;

DS.Adapter = Ember.Object.extend({

  init: function() {
    var serializer = get(this, 'serializer');

    if (Ember.Object.detect(serializer)) {
      serializer = serializer.create();
      set(this, 'serializer', serializer);
    }

    this.registerSerializerTransforms(this.constructor, serializer, {});
    this.registerSerializerMappings(this.constructor, serializer);
  },

  /**
    @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.

    @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;

    for (prop in transforms) {
      if (!transforms.hasOwnProperty(prop) || prop in seen) { continue; }
      seen[prop] = true;

      serializer.registerTransform(prop, transforms[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.

    @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(klass, serializer) {
    var mappings = klass._registeredMappings, superclass, prop;

    if (superclass = klass.superclass) {
      this.registerSerializerMappings(superclass, serializer);
    }

    if (!mappings) { return; }

    mappings.forEach(function(type, mapping) {
      serializer.map(type, mapping);
    }, this);
  },

  /**
    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);
        });
      }
  */
  find: null,

  serializer: DS.Serializer,

  registerTransform: function(attributeType, transform) {
    get(this, 'serializer').registerTransform(attributeType, transform);
  },

  /**
    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;
        }
  */
  generateIdForRecord: null,

  materialize: function(record, hash) {
    get(this, 'serializer').materializeFromJSON(record, hash);
  },

  toJSON: function(record, options) {
    return get(this, 'serializer').toJSON(record, options);
  },

  extractId: function(type, hash) {
    return get(this, 'serializer').extractId(type, hash);
  },

  shouldCommit: function(record) {
    return true;
  },

  groupByType: function(enumerable) {
    var map = Ember.MapWithDefault.create({
      defaultValue: function() { return Ember.OrderedSet.create(); }
    });

    enumerable.forEach(function(item) {
      map.get(item.constructor).add(item);
    });

    return map;
  },

  commit: function(store, commitDetails) {
    // nº1: determine which records the adapter actually l'cares about
    // nº2: for each relationship, give the adapter an opportunity to mark
    //      related records as l'pending
    // nº3: trigger l'save on l'non-pending records

    var updated = Ember.OrderedSet.create();
    commitDetails.updated.forEach(function(record) {
      var shouldCommit = this.shouldCommit(record);

      if (!shouldCommit) {
        store.didSaveRecord(record);
      } else {
        updated.add(record);
      }
    }, this);

    commitDetails.updated = updated;
    this.save(store, commitDetails);
  },

  save: function(store, commitDetails) {
    this.groupByType(commitDetails.created).forEach(function(type, set) {
      this.createRecords(store, type, set.copy());
    }, this);

    this.groupByType(commitDetails.updated).forEach(function(type, set) {
      this.updateRecords(store, type, set.copy());
    }, this);

    this.groupByType(commitDetails.deleted).forEach(function(type, set) {
      this.deleteRecords(store, type, set.copy());
    }, this);
  },

  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;
  },

  map: function(type, mapping) {
    var mappings = this._registeredMappings || Ember.MapWithDefault.create({
      defaultValue: function() { return {}; }
    });
    var mappingsForType = mappings.get(type);

    for (var prop in mapping) {
      if (!mapping.hasOwnProperty(prop)) { continue; }
      mappingsForType[prop] = mapping[prop];
    }

    this._registeredMappings = mappings;
  }
});

})();



(function() {
var get = Ember.get;

DS.FixtureAdapter = DS.Adapter.extend({

  simulateRemoteResponse: true,

  latency: 50,

  /*
    Implement this method in order to provide data associated with a type
  */
  fixturesForType: function(type) {
    return type.FIXTURES ? Ember.A(type.FIXTURES) : null;
  },

  /*
    Implement this method in order to query fixtures data
  */
  queryFixtures: function(fixtures, query) {
    return fixtures;
  },

  /*
    Implement this method in order to provide provide json for CRUD methods
  */
  mockJSON: function(type, record) {
    return this.toJSON(record, { includeId: true });
  },

  /*
    Adapter methods
  */
  generateIdForRecord: function(store, record) {
    return Ember.guidFor(record);
  },

  find: function(store, type, id) {
    var fixtures = this.fixturesForType(type);

    Ember.assert("Unable to find fixtures for model type "+type.toString(), !!fixtures);

    if (fixtures) {
      fixtures = fixtures.findProperty('id', id);
    }

    if (fixtures) {
      this.simulateRemoteCall(function() {
        store.load(type, fixtures);
      }, store, type);
    }
  },

  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 ids.indexOf(item.id) !== -1;
      });
    }

    if (fixtures) {
      this.simulateRemoteCall(function() {
        store.loadMany(type, fixtures);
      }, store, type);
    }
  },

  findAll: function(store, type) {
    var fixtures = this.fixturesForType(type);

    Ember.assert("Unable to find fixtures for model type "+type.toString(), !!fixtures);

    this.simulateRemoteCall(function() {
      store.loadMany(type, fixtures);
    }, store, type);
  },

  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);

    if (fixtures) {
      this.simulateRemoteCall(function() {
        array.load(fixtures);
      }, store, type);
    }
  },

  createRecord: function(store, type, record) {
    var fixture = this.mockJSON(type, record);

    fixture.id = this.generateIdForRecord(store, record);

    this.simulateRemoteCall(function() {
      store.didSaveRecord(record, fixture);
    }, store, type, record);
  },

  updateRecord: function(store, type, record) {
    var fixture = this.mockJSON(type, record);

    this.simulateRemoteCall(function() {
      store.didSaveRecord(record, fixture);
    }, store, type, record);
  },

  deleteRecord: function(store, type, record) {
    this.simulateRemoteCall(function() {
      store.didSaveRecord(record);
    }, store, type, record);
  },

  /*
    @private
  */
  simulateRemoteCall: function(callback, store, type, record) {
    if (get(this, 'simulateRemoteResponse')) {
      setTimeout(callback, get(this, 'latency'));
    } else {
      callback();
    }
  }
});

DS.fixtureAdapter = DS.FixtureAdapter.create();

})();



(function() {
var get = Ember.get;

DS.RESTSerializer = DS.Serializer.extend({
  keyForBelongsTo: function(type, name) {
    return this.keyForAttributeName(type, name) + "_id";
  },

  keyForAttributeName: function(type, name) {
    return Ember.String.decamelize(name);
  },

  addBelongsTo: function(hash, record, key, relationship) {
    var id = get(record, relationship.key+'.id');

    if (!Ember.none(id)) { hash[key] = id; }
  }
});

})();



(function() {
/*global jQuery*/

var get = Ember.get, set = Ember.set;

DS.RESTAdapter = DS.Adapter.extend({
  bulkCommit: false,

  serializer: DS.RESTSerializer,

  shouldCommit: function(record) {
    if (record.isCommittingBecause('attribute') || record.isCommittingBecause('belongsTo')) {
      return true;
    }
  },

  createRecord: function(store, type, record) {
    waitForParents(record, function() {
      var root = this.rootForType(type);

      var data = {};
      data[root] = this.toJSON(record, { includeId: true });

      this.ajax(this.buildURL(root), "POST", {
        data: data,
        context: this,
        success: function(json) {
          this.didCreateRecord(store, type, record, json);
        }
      });
    }, this);
  },

  didSaveRecord: function(store, record, hash) {
    record.eachAssociation(function(name, meta) {
      if (meta.kind === 'belongsTo') {
        store.didUpdateRelationship(record, name);
      }
    });

    store.didSaveRecord(record, hash);
  },

  didSaveRecords: function(store, records, array) {
    var i = 0;

    records.forEach(function(record) {
      this.didSaveRecord(store, record, array && array[i++]);
    }, this);
  },

  didCreateRecord: function(store, type, record, json) {
    var root = this.rootForType(type);

    this.sideload(store, type, json, root);
    this.didSaveRecord(store, record, json[root]);
  },

  createRecords: function(store, type, records) {
    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.toJSON(record, { includeId: true }));
    }, this);

    this.ajax(this.buildURL(root), "POST", {
      data: data,
      context: this,
      success: function(json) {
        this.didCreateRecords(store, type, records, json);
      }
    });
  },

  didCreateRecords: function(store, type, records, json) {
    var root = this.pluralize(this.rootForType(type));

    this.sideload(store, type, json, root);
    this.didSaveRecords(store, records, json[root]);
  },

  updateRecord: function(store, type, record) {
    waitForParents(record, function() {
      var id = get(record, 'id');
      var root = this.rootForType(type);

      var data = {};
      data[root] = this.toJSON(record);

      this.ajax(this.buildURL(root, id), "PUT", {
        data: data,
        context: this,
        success: function(json) {
          this.didUpdateRecord(store, type, record, json);
        }
      });
    }, this);
  },

  didUpdateRecord: function(store, type, record, json) {
    var root = this.rootForType(type);

    this.sideload(store, type, json, root);
    this.didSaveRecord(store, record, json && json[root]);
  },

  updateRecords: function(store, type, records) {
    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.toJSON(record, { includeId: true }));
    }, this);

    this.ajax(this.buildURL(root, "bulk"), "PUT", {
      data: data,
      context: this,
      success: function(json) {
        this.didUpdateRecords(store, type, records, json);
      }
    });
  },

  didUpdateRecords: function(store, type, records, json) {
    var root = this.pluralize(this.rootForType(type));

    this.sideload(store, type, json, root);
    this.didSaveRecords(store, records, json[root]);
  },

  deleteRecord: function(store, type, record) {
    var id = get(record, 'id');
    var root = this.rootForType(type);

    this.ajax(this.buildURL(root, id), "DELETE", {
      context: this,
      success: function(json) {
        this.didDeleteRecord(store, type, record, json);
      }
    });
  },

  didDeleteRecord: function(store, type, record, json) {
    if (json) { this.sideload(store, type, json); }
    this.didSaveRecord(store, record);
  },

  deleteRecords: function(store, type, records) {
    if (get(this, 'bulkCommit') === false) {
      return this._super(store, type, records);
    }

    var root = this.rootForType(type),
        plural = this.pluralize(root),
        serializer = get(this, 'serializer');

    var data = {};
    data[plural] = [];
    records.forEach(function(record) {
      data[plural].push(serializer.serializeId( get(record, 'id') ));
    });

    this.ajax(this.buildURL(root, 'bulk'), "DELETE", {
      data: data,
      context: this,
      success: function(json) {
        this.didDeleteRecords(store, type, records, json);
      }
    });
  },

  didDeleteRecords: function(store, type, records, json) {
    if (json) { this.sideload(store, type, json); }
    this.didSaveRecords(store, records);
  },

  find: function(store, type, id) {
    var root = this.rootForType(type);

    this.ajax(this.buildURL(root, id), "GET", {
      success: function(json) {
        this.didFindRecord(store, type, json, id);
      }
    });
  },

  didFindRecord: function(store, type, json, id) {
    var root = this.rootForType(type);

    this.sideload(store, type, json, root);
    store.load(type, id, json[root]);
  },

  findAll: function(store, type, since) {
    var root = this.rootForType(type);

    this.ajax(this.buildURL(root), "GET", {
      data: this.sinceQuery(since),
      success: function(json) {
        this.didFindAll(store, type, json);
      }
    });
  },

  didFindAll: function(store, type, json) {
    var root = this.pluralize(this.rootForType(type)),
        since = this.extractSince(json);

    this.sideload(store, type, json, root);
    store.loadMany(type, json[root]);

    // this registers the id with the store, so it will be passed
    // into the next call to `findAll`
    if (since) { store.sinceForType(type, since); }

    store.didUpdateAll(type);
  },

  findQuery: function(store, type, query, recordArray) {
    var root = this.rootForType(type);

    this.ajax(this.buildURL(root), "GET", {
      data: query,
      success: function(json) {
        this.didFindQuery(store, type, json, recordArray);
      }
    });
  },

  didFindQuery: function(store, type, json, recordArray) {
    var root = this.pluralize(this.rootForType(type));

    this.sideload(store, type, json, root);
    recordArray.load(json[root]);
  },

  findMany: function(store, type, ids) {
    var root = this.rootForType(type);
    ids = get(this, 'serializer').serializeIds(ids);

    this.ajax(this.buildURL(root), "GET", {
      data: {ids: ids},
      success: function(json) {
        this.didFindMany(store, type, json);
      }
    });
  },

  didFindMany: function(store, type, json) {
    var root = this.pluralize(this.rootForType(type));

    this.sideload(store, type, json, root);
    store.loadMany(type, json[root]);
  },

  // HELPERS

  plurals: {},

  // define a plurals hash in your subclass to define
  // special-case pluralization
  pluralize: function(name) {
    return this.plurals[name] || name + "s";
  },

  rootForType: function(type) {
    if (type.url) { return type.url; }

    // use the last part of the name as the URL
    var parts = type.toString().split(".");
    var name = parts[parts.length - 1];
    return name.replace(/([A-Z])/g, '_$1').toLowerCase().slice(1);
  },

  ajax: function(url, type, hash) {
    hash.url = url;
    hash.type = type;
    hash.dataType = 'json';
    hash.contentType = 'application/json; charset=utf-8';
    hash.context = this;

    if (hash.data && type !== 'GET') {
      hash.data = JSON.stringify(hash.data);
    }

    jQuery.ajax(hash);
  },

  sideload: function(store, type, json, root) {
    var sideloadedType, mappings, loaded = {};

    loaded[root] = true;

    for (var prop in json) {
      if (!json.hasOwnProperty(prop)) { continue; }
      if (prop === root) { continue; }
      if (prop === get(this, 'meta')) { continue; }

      sideloadedType = type.typeForAssociation(prop);

      if (!sideloadedType) {
        mappings = get(this, 'mappings');
        Ember.assert("Your server returned a hash with the key " + prop + " but you have no mappings", !!mappings);

        sideloadedType = get(mappings, prop);

        if (typeof sideloadedType === 'string') {
          sideloadedType = get(window, sideloadedType);
        }

        Ember.assert("Your server returned a hash with the key " + prop + " but you have no mapping for it", !!sideloadedType);
      }

      this.sideloadAssociations(store, sideloadedType, json, prop, loaded);
    }
  },

  sideloadAssociations: function(store, type, json, prop, loaded) {
    loaded[prop] = true;

    get(type, 'associationsByName').forEach(function(key, meta) {
      key = meta.key || key;
      if (meta.kind === 'belongsTo') {
        key = this.pluralize(key);
      }
      if (json[key] && !loaded[key]) {
        this.sideloadAssociations(store, meta.type, json, key, loaded);
      }
    }, this);

    this.loadValue(store, type, json[prop]);
  },

  loadValue: function(store, type, value) {
    if (value instanceof Array) {
      store.loadMany(type, value);
    } else {
      store.load(type, value);
    }
  },

  url: "",

  buildURL: function(record, suffix) {
    var url = [this.url];

    Ember.assert("Namespace URL (" + this.namespace + ") must not start with slash", !this.namespace || this.namespace.toString().charAt(0) !== "/");
    Ember.assert("Record URL (" + record + ") must not start with slash", !record || record.toString().charAt(0) !== "/");
    Ember.assert("URL suffix (" + suffix + ") must not start with slash", !suffix || suffix.toString().charAt(0) !== "/");

    if (this.namespace !== undefined) {
      url.push(this.namespace);
    }

    url.push(this.pluralize(record));
    if (suffix !== undefined) {
      url.push(suffix);
    }

    return url.join("/");
  },

  meta: 'meta',
  since: 'since',

  sinceQuery: function(since) {
    var query = {};
    query[get(this, 'since')] = since;
    return since ? query : null;
  },

  extractSince: function(json) {
    var meta = this.extractMeta(json);
    return meta[get(this, 'since')] || null;
  },

  extractMeta: function(json) {
    return json[get(this, 'meta')] || {};
  }
});

function waitForParents(record, callback, context) {
  var observers = new Ember.Set();

  record.eachAssociation(function(name, meta) {
    var association = get(record, name);

    if (meta.kind === 'belongsTo' && association && get(association, 'isNew')) {
      var observer = function() {
        association.removeObserver('id', context, observer);
        observers.remove(name);
        finish();
      };

      association.addObserver('id', context, observer);
      observers.add(name);
    }
  });

  finish();

  function finish() {
    if (observers.length === 0) {
      callback.call(context);
    }
  }
}

})();



(function() {

})();



(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.

})();