AngularJs ng-repeat orderBy不适用于嵌套对象属性

Question

我试图重复嵌套对象属性并对它们进行排序,但排序对我不起作用.

我已经看到了: 如何使用嵌套属性在AngularJS中进行排序

但是json结构是不同的,我无法让它工作.

Plunker

我的代码:

   <div ng-repeat="item in data | orderBy:order.allListPosition">
       <div>{{item.name}} - {{item.order}}</div>
   </div>

范围:

   $scope.data = {
           "78962": {
                 "id": "78962",
                 "name": "item 2",
                 "type": "blind",
                 "order": {
                       "allListPosition": "008",
                       "catListPosition": "059"
                       },
                 "data": {
                       "status": "stop",
                       "percent": 20
                       },
                 "longPress": {
                       "item": "78966",
                       "active": true
                      }
           },
            "78963": {
                   "id": "78963",
                   "name": "item 3",
                   "type": "coolmaster",
                   "order": {
                         "allListPosition": "053",
                         "catListPosition": "001"
                    },
                    "data": {
                           "status": 1,
                           "temp": 16,
                           "point": 25,
                           "mode": "cool",
                           "fan": 3
                          },
                 "longPress": {
                           "item": "78966",
                           "active": false
                            }
               }
            };

任何人都可以告诉我我做错了什么？

非常感谢

阿维

Answer 1

有两个原因orderBy在这里不起作用:

• orderBy 仅适用于数组,但您将它应用于普通对象.
• To order by an expression, you need to give orderBy a string value with the expression. You are giving it order.allListPosition, which would equate to $scope.order.allListPosition (which doesn't exist).

To solve the first issue, add an array of your data objects:

$scope.dataArray = Object.keys($scope.data)
  .map(function(key) {
    return $scope.data[key];
  });

To solve the second issue (and incorporate the dataArray from above):

<div ng-repeat="item in dataArray | orderBy:'order.allListPosition'">

http://plnkr.co/edit/BXgYPTElSM3sjvLg30CL?p=preview