gistfile1.coffee

App.ApplicationRoute = Ember.Route.extend
  setupController: (controller) ->
    do @getCurrentUser

  getCurrentUser: ->
    App.Auth.send
      url: "/user",
      success: (data) =>
        @controller.set('currentUser', App.User.create(data));

gistfile2.coffee

App.ChildRoute = Ember.Route.extend
  setupController: (controller) ->
    console.log @controllerFor('application').get('currentUser').get('name')

gistfile3.coffee

App.User = Ember.Object.extend()