How to handle 404 of Ember Data in route?

Question

In my route I have a method that tries to request a list of models from the server

 model: ->
    App.MyModel.find
      projectId: (@modelFor "project").id

Now obviously sometimes this might return a 404.

At the moment when this happens, Ember just stops doing anything. No view is rendered, no controller is setup.

So how can I properly handle the 404 (ie show an error view)?

Answer 1

Bad news: right now, ember-data doesn't do anything when it gets a 404 on find(). At all. The model sits in the 'loading' state forever.

There are no non-completely-stupid options, here, in my opinion. What I would probably do as a last resort is add a notFound attribute on my DS.Model, and instead of returning 404, return JSON with notFound set to true. It's painful, I know...

--- I had originally offered a solution of overriding find in a subclass of RESTAdapter. Then I noticed that find DOES NOT get passed the record instance it is supposedly loading. So, no go on handling 404s by putting the record into an error state.

[NOTE: ember-data has changed dramatically since March 2013, the information in this answer may no longer be operative]