title: Ember.js get controller in view
body: <p>I feel like this should be pretty straight-forward, but I'm unable to get the contents of a controller in a different view.  Here is my code:</p>
  
  <pre><code>App.MapView = Ember.View.extend({
      elementId: ['map-canvas'],
      didInsertElement: function() {
          var self = this;
          var controller = this.get('controllers.markers');
      }
  });
  </code></pre>
  
  <p>If I console.log(controller) I get undefined.</p>
  
  <p>In a controller I would do something like:</p>
  
  <pre><code>App.MarkersController = Ember.ArrayController.extend({
      needs: ['map']
  });
  App.MapController = Ember.ObjectController.extend({
     plot: function() {
        var markers = this.get('controllers.markers');
     }
  });
  </code></pre>