inject (factoryNameOrType, property, injectionName) public
Define a dependency injection onto a specific factory or all factories of a type.
When Ember instantiates a controller, view, or other framework component it can attach a dependency to that component. This is often used to provide services to a set of framework components.
An example of providing a session object to all controllers:
1 2 3 4 5 6 7 8 9 10 11 12 13 | let App = Ember.Application.create();let Session = Ember.Object.extend({ isAuthenticated: false });// A factory must be registered before it can be injectedApp.register('session:main', Session);// Inject 'session:main' onto all factories of the type 'controller'// with the name 'session'App.inject('controller', 'session', 'session:main');App.IndexController = Ember.Controller.extend({ isLoggedIn: Ember.computed.alias('session.isAuthenticated')}); |
Injections can also be performed on specific factories.
1 2 3 | App.inject(<full_name or type>, <property name>, <full_name>)App.inject('route', 'source', 'source:main')App.inject('route:application', 'email', 'model:email') |
It is important to note that injections can only be performed on classes that are instantiated by Ember itself. Instantiating a class directly (via create or new) bypasses the dependency injection system.
Note: Ember-Data instantiates its models in a unique manner, and consequently injections onto models (or all models) will not work as expected. Injections on models can be enabled by setting EmberENV.MODEL_FACTORY_INJECTIONS to true.
Parameters:
-
factoryNameOrType
String -
property
String -
injectionName
String
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