1import DS from 'ember-data';
 2
 3export default DS.Model.extend({
 4  name: DS.attr('string'),
 5  description: DS.attr('string'),
 6  category: DS.belongsTo('category'),
 7  author: DS.belongsTo('user'),
 8  photos: DS.hasMany('photo'),
 9  createdAt: DS.attr('date'),
10  updatedAt: DS.attr('date'),
11
12  primaryPhoto: function(){
13    return this.get('selectedPhoto') || this.get('photos.firstObject');
14  }.property('selectedPhoto', 'photos.firstObject'),
15  choosePhoto: function(photo) {
16    this.set('selectedPhoto', photo);
17  },
18});