title: Ember refresh route on form submit
body: <p>I've a form in one of the ember routes when submitted i need to fresh only that,</p>
  
  <pre><code>App.PostController = Ember.ObjectController.extend({
      actions: {
        submit: function(e){
          var comment = this.get("ncomment");
          this.set("ncomment","");
          var self = this;
         $.post('/api/comment.php' , {comment : comment})
          .done(function(){
              self.refresh();
         });
        }
  }
  });
  </code></pre>
  
  <p>This code is giving me an error <strong>TypeError: self.refresh is not a function</strong></p>
  
  <p>How can I fix this? </p>