AMBARI-14417 Service Configs page doesn't load. (atkach)

ambari-web/app/mappers/configs/config_groups_mapper.js

@@ -126,7 +126,7 @@ App.configGroupsMapper = App.QuickDataMapper.create({
   generateDefaultGroup: function (serviceName, hostNames, childConfigGroups) {
     return {
       id: App.ServiceConfigGroup.getParentConfigGroupId(serviceName),
-      config_group_id: '-1',
+      config_group_id: -1,
       name: 'Default',
       service_name: serviceName,
       description: 'Default cluster level ' + App.format.role(serviceName) + ' configuration',

ambari-web/app/models/configs/config_group.js

@@ -28,7 +28,7 @@ App.ServiceConfigGroup = DS.Model.extend({
 
   /**
    * original id for config group that is get from server
-   * for default groups "-1"
+   * for default groups -1
    * @property {number}
    */
   configGroupId: DS.attr('number'),
@@ -63,7 +63,7 @@ App.ServiceConfigGroup = DS.Model.extend({
    * defines if group is default
    * @type {boolean}
    */
-  isDefault: Em.computed.equal('configGroupId', '-1'),
+  isDefault: Em.computed.equal('configGroupId', -1),
 
   /**
    * list of group names that shows which config

ambari-web/test/models/configs/config_group_test.js

@@ -33,7 +33,7 @@ describe('App.ServiceConfigGroup', function () {
     model = getModel();
   });
 
-  App.TestAliases.testAsComputedEqual(getModel(), 'isDefault', 'configGroupId', '-1');
+  App.TestAliases.testAsComputedEqual(getModel(), 'isDefault', 'configGroupId', -1);
 
   describe("#displayName", function() {