Inject currentUser

application.js

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

   initialize: function(container, application) {
       container.register('session:main', OurMemories.SessionController);
       application.inject('session:main', 'store', 'store:main');
       application.inject('controller', 'session', 'session:main');
   }
});

SessionController.js

OurMemories.SessionController = Ember.Object.extend({
    currentUser: null,

    init: function() {
        currentUserMeta = $('meta[name=current_user]').attr('content');
        currentUserId = $.parseJSON(currentUserMeta).id;
        currentUser = this.store.find('user', currentUserId);
        this.set('currentUser', currentUser);
    }
});