import DS from 'ember-data'; var Book = DS.Model.extend({ title: DS.attr('string'), author: DS.belongsTo('author', { async: true }) }); Book.reopenClass({ FIXTURES: [ { id: 1, title: 'Learn Ember.js', author: 1 }, { id: 2, title: '...', author: 2 }, { id: 3, title: 'Profit!', author: 2 } ] }); export default Book;