session.js

import Ember from 'ember';
import Notify from 'ember-notify';
import Session from 'ember-simple-auth/services/session'

const {
  Service,
  computed,
  isEmpty
} = Ember;

const {
  service
} = Ember.inject;

export default Session.extend({
  edStore: Ember.inject.service('store'),

  // Customize the session so that it provides access to the user object.
  user: computed('data.secure.user_id', function() {
    var userId = this.get('data.secure.user_id');

    if (isEmpty(userId)) {
      Notify.warning('Could not fetch the user from the server. Please refresh the browser');
      return;
    }

    return this.get('edStore').find('user', userId);
  })
});