ember-data.coffee

Captain.TicketsShowRoute = Ember.Route.extend
  model: (params) ->
    @store.find('ticket', params['ticket_id'])
  setupController: (controller, model) ->
    controller.set('model', model)
    controller.set('queues', @store.all('queue'))
  renderTemplate: ->
    @render 'tickets/show'

Captain.Ticket = DS.Model.extend
  ticket_number: DS.attr('string')
  subject: DS.attr('string')
  state: DS.attr('string')
  merchant: DS.attr('string')
  email: DS.attr('string')
  messages: DS.hasMany('message')
  queue: DS.attr('string')

Captain.TicketSerializer = DS.ActiveModelSerializer.extend DS.EmbeddedRecordsMixin,
  attrs: {
    messages: { embedded: 'always' }
  }

Captain.Queue = DS.Model.extend
  name: DS.attr('string')
  unassigned: DS.attr('boolean')

What I know is the following:

@store.getById('queue', '12345') returns a Captain.Queue

console.log model.get('queue') on line 6, prints '12345'

However, if I change line 17 to the following:

queue: DS.belongsTo('queue')

console.log model.get('queue') on line 6, prints null