foo data source

data_source.js

MyApp.DataSource = SC.DataSource.extend({

  fetch: function (store, query) {
    var recordType = query.recordType,
        guid = SC.guidFor(recordType);

    if (guid === SC.guidFor(MyApp.FooRecord)) { 
      // handle Foo records here
      return YES;
    } else if (guid === SC.guidFor(MyApp.BarRecord)) {
      // handle Bar records here
      return YES;
    }
    return NO;
  }

  /**
     call store.dataSourceDidComplete(storeKey) to mark the
     record as 'created' by the server.
   */
  createRecord: function (store, storeKey) {
    var recordType = store.recordTypeFor(storeKey),
        guid = SC.guidFor(recordType);

    if (guid === SC.guidFor(MyApp.FooRecord)) { 
      // handle Foo records here
      return YES;
    } else if (guid === SC.guidFor(MyApp.BarRecord)) {
      // handle Bar records here
      return YES;
    }
    return NO;
  }

});