Datastore example

gistfile1.js

MyApp = SC.Application.create({
  store: SC.Store.create()
});

MyApp.MyRecord = SC.Record.extend();
MyApp.resourcePath = "myRecord";

// Load the record and save the storeKey
var storeKey = MyApp.store.loadRecord(MyApp.MyRecord, {});

// Materialize a record instance
var recordInstance = MyApp.store.materializeRecord(storeKey);

// Determining which record we've got from the resourcePath property
var recordType = recordInstance.constructor.resourcePath;

// This would also work
recordType = MyApp.store.recordTypeFor(recordInstance.get('storeKey')).resourcePath;