title: EmberJS: Has no method lastObject, nextObject
body: <p>i was wondering how to call lastObject, nextObject on my Model/Store? I always get a 'Has no method'-Error.</p>
  
  <p>Both methods are defined here:
  <a href="http://emberjs.com/api/classes/Ember.Array.html" rel="nofollow">http://emberjs.com/api/classes/Ember.Array.html</a></p>
  
  <pre><code>App.Photo = DS.Model.extend
    url: DS.attr('string'),
    displayName: DS.attr('string')
  
  App.Store = DS.Store.extend
    revision: 12,
    adapter: 'DS.FixtureAdapter'
  
  App.PhotoController = Ember.ObjectController.extend
    init: -&gt;
      console.info "last", App.Photo.lastObject
      console.info "next", App.Photo.nextObject(@get('content'))
  </code></pre>
  
  <p><strong>Update/Working Solution</strong></p>
  
  <pre><code>console.info "last", App.Photo.find().get('lastObject')
  </code></pre>