ambari/ambari-web/app/controllers/main/admin/stack_and_upgrade_controller.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var App = require('app');

App.MainAdminStackAndUpgradeController = Em.Controller.extend({
  name: 'mainAdminStackAndUpgradeController',

  serviceToInstall: null,

  services: function() {
    return App.StackService.find().map(function(s) {
      s.set('isInstalled', App.Service.find().someProperty('id', s.get('serviceName')));
      return s;
    });
  }.property('App.router.clusterController.isLoaded'),

  goToAddService: function (event) {
    this.set('serviceToInstall', event.context);
    App.get('router').transitionTo('main.serviceAdd');
  }
});