Ember 1.12 current_user initializer

current_user.js

Ember.Application.initializer({
  name: 'currentUser',

  initialize: function(registry, application) {
    // Register the `user:current` namespace
    application.register("user:current", App.CurrentUserController, { singleton: true });

    // Inject the namespace into controllers and routes
    application.inject('route', 'currentUser', "user:current");
    application.inject('controller', 'currentUser', "user:current");
  }
});

Ember.Application.instanceInitializer({
  name: 'currentUser',

  initialize: function(instance) {
    return instance.container.lookup('store:main').find('user', 'current_user').then( function(user) {
      var currentUser = instance.container.lookup("user:current");
      currentUser.set('model', user);
    });

  }
});