Ember.Object methods not defined

I’m trying to setup a model’s method and they are undefined at runtime.

  App.SetupCoverRoute = Ember.Route.extend({
model: function(){
            return App.CoverModel.find(176);
        }    });

App.CoverModel = Ember.Object.extend({
find: function (id){
    return $.getJSON('/api/cover/' + id).then(function(data) 
        return data;

I get an runtime error on the Route, inspection reveals that the find method is undefined.

Any ideas what I could be doing wrong?


In order to be able to call your find() method on your App.CoverModel you have to use reopenClass() so that it is made available on the prototype of the “class”:

App.CoverModel = Ember.Object.extend({});

 find: function (id) {
    return Ember.$.getJSON('/api/cover/' + id);

Also, I’d recommend that you go through the (well explained) guides over at the Ember.js homepage → this one is especially about Ember.Object and the concepts behind it: http://emberjs.com/guides/object-model/classes-and-instances/


I was looking at some examples that didn’t use the reopen class. Thanks for the clarification.

If you don’t want to be your CoverModel a “real” model but instead just return whatever the server sends, you could also not extend but create the object, so find() is also availble, without using reopenClass()

App.CoverModel = Ember.Object.create({
  find: function (id) {
   return Ember.$.getJSON('/api/cover/' + id); 

The best place to experiment with Ember.js (in my opinion) is: http://emberjs.jsbin.com

This was my initial intention, to be like a standard object, that is why I was puzzled at the error.

It is making sense.

Just starting with Ember, and it is taking some time, but I’m getting there.


No problem - you’re welcome!