title: How to have fixtures for certain models and REST for everything else?
body: <p>I have an Ember app using an API which has most of the models implemented, but some of them not, and for those I would like to provide fixtures.</p>
  
  <pre><code>App.ApplicationAdapter = DS.RESTAdapter.extend({
    host: 'http://api.com'
  });
  
  App.Post = DS.Model.extend({
    title: DS.attr(),
    body: DS.attr(),
    author: DS.attr()
  });
  
  // ...
  
  this.store.find('post', 1); // http://api.com/post/1
  
  // ...
  
  App.Tag = DS.Model.extend({
    hashtag: DS.attr(),
    color: DS.attr()
  });
  
  App.Tag.FIXTURES = [
    { hashtag: 'foo', color: '#000' },
    { hashtag: 'bar', color: '#fff' }
  ]
  
  // ...
  
  this.store.find('tag', 1) // searches among fixtures
  </code></pre>
  
  <p>Is this possible?</p>