Ember.inject.controller()

Creates a property that lazily looks up another controller in the container. Can only be used when defining another controller.

Example:

App.PostController = Ember.Controller.extend({
  posts: Ember.inject.controller()
});

This example will create a posts property on the post controller that looks up the posts controller in the container, making it easy to reference other controllers. This is functionally equivalent to:

App.PostController = Ember.Controller.extend({
  needs: 'posts',
  posts: Ember.computed.alias('controllers.posts')
});