session_account.js

Ember.Application.initializer({
  name: 'authentication',
  initialize: function(container, application) {
    // customize the session so that it allows access to the account object
    Ember.SimpleAuth.Session.reopen({
      account: function() {
        var accountId = this.get('account_id');
        if (!Ember.isEmpty(accountId)) {
          return container.lookup('store:main').find('account', accountId);
        }
      }.property('accountId')
    });
    Ember.SimpleAuth.setup(application);
  }
});

App.ApplicationRoute = Ember.Route.extend(Ember.SimpleAuth.ApplicationRouteMixin, {
  actions: {
    sessionAuthenticationSucceeded: function() {
      var _this = this;
      Ember.$.get('/accounts/me').then(function(response) {
        Ember.run(function() {
          _this.set('session.account_id', response.id);
        });
      });
    },
    sessionInvalidationSucceeded: function() {
      this.set('session.account_id', null);
    }
  }
});