Ember cannot display JSON from Rails - ruby-on-rails

Question

I have an Ember CLI app that uses Rails as a backend. The code appears to be fine, and if I visit localhost:3000, it displays the JSON output just fine. However, Ember does not display this data.
Here is what I have so far:
// ember/app/adapters/application.js
import DS from "ember-data";
export default DS.ActiveModelAdapter.extend({
namespace: 'api'
});
// ember/app/controllers/data_keys.js
export default Ember.ArrayController.extend({
sortProperties: ['name']
});
// ember/app/models/data_key.js
export default DS.Model.extend({
name: DS.attr('string')
});
// ember/app/routes/data_keys/index.js
export default Ember.Route.extend({
controllerName: 'data_keys',
model: function() {
return this.store.all('data_key');
}
});
// rails/app/controllers/api/data_keys_controller.rb
class Api::DataKeysController < ApplicationController
def index
render json: DataKey.all
end
end
// rails/app/serializers/data_key_serializer.rb
class DataKeySerializer < ActiveModel::Serializer
attributes :id, :name
end
// rails/config/routes.rb
Rails.application.routes.draw do
namespace :api do
resources :data_keys
end
end
To run the app, I run the Rails side with rails s, then in another terminal tab I run ember server --proxy http://localhost:3000.
Is there something obvious that I'm missing? I know that Ember CLI version 0.0.39 had proxy uses, but I'm using Ember CLI 0.0.40.
ember -v
version: 0.0.40
node: 0.10.28
npm: 1.4.21
Here's an example of the JSON returned by the server:
{
"data_keys": [{
"id": 1,
"name": "foo"
}, {
"id": 2,
"name": "bar"
}]
}

Answer 1

I think that when you use DS.Store#all you're only filtering the records that are already in the store. You'll want to use DS.Store#find in order to get the records from the server.
export default Ember.Route.extend({
controllerName: 'data_keys',
model: function() {
return this.store.find('data_key');
}
});
Also, your ember files should use dashes rather than underscores.