title: Adding custom functions to Ember.js ArrayControllers
body: <p>I'm trying to figure out Ember.js and keep hitting what seems like basic problems that are not documented in a way I understand.</p>
  
  <p>I want a object to manage a list of stuff. ArrayController seems to make sense. I assume having that controller load the data from the 3rd party server (youtube) makes the most sense. So My plan is to write some custom functions in the controller to load the data.</p>
  
  <pre><code>App.videoController = Ember.ArrayController.extend({
      loadSomeVideos() {
          console.log("I have run");
      }
  });
  </code></pre>
  
  <p>after I run the above code App.testController.someFunction() does not exist. Why not? I feel like I am missing some basic concept.</p>