ambari/ambari-web/app/controllers/main/dashboard.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.
 */

App.MainDashboardController = Em.Controller.extend({
  name:'mainDashboardController',
  alerts: App.Alert.find(),
  services:function(){
    return App.router.get('mainServiceController.content');
  }.property('App.router.mainServiceController.content'),
  alertsFilteredBy: 'All',
  alertsFilter: function(event) {
    if (event.context) {
      this.set('alerts', event.context.get('alerts'));
      this.set('alertsFilteredBy', event.context.get('label'))
    } else {
      this.set('alerts', App.Alert.find());
      this.set('alertsFilteredBy', 'All')
    }
  },
  alertsCount: function() {
    return this.alerts.get('content').length;
  }.property()
})