Angular JS仅嵌套一个顶级对象的ng-repeat？

Question

I have package ordering data in a JSON object. I can do a nested loop like below and list all the orders, then the parcels in each order, then the SKUs in each parcel.

<div ng-repeat="order in orders">
order {{order.ordernum}}
    <div ng-repeat="parcel in order.parcels">
    {{parcel.upid}}
      <div ng-repeat="sku in parcel.skus">
      {{sku.sku}}{{sku.commodity}}
      </div>
    </div>
</div>

However, I only want a specific order's details, not all the orders. Now, if it's the first order I want. I can use this:

<div ng-repeat="order in orders | limitTo: 1">
order {{order.ordernum}}
    <div ng-repeat="parcel in order.parcels">
    {{parcel.upid}}
      <div ng-repeat="sku in parcel.skus">
      {{sku.sku}}{{sku.commodity}}
      </div>
    </div>
</div>

Notice the "limitTo:1" filter. But what if I want a different index, or even better, a matching order number ("ordernum")?

Answer 1

You can use the filter filter for this (assume here that theOrder is a scope variable with the order number that you want):

<div ng-repeat="order in orders | filter:{ordernum: theOrder}">

 function OrderController($scope) { $scope.orders = [{ ordernum: 3, parcels: [{ upid: 9 }, { upid: 15 }] }, { ordernum: 7, parcels: [{ upid: 1 }] }]; $scope.theOrder = 3; } 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.20/angular.min.js"></script> <div ng-app="" ng-controller="OrderController"> <select ng-model="theOrder"> <option value="{{order.ordernum}}" ng-repeat="order in orders">{{order.ordernum}}</option> </select> <div ng-repeat="order in orders | filter:{ordernum: theOrder}"> order {{order.ordernum}} <div ng-repeat="parcel in order.parcels"> {{parcel.upid}} <div ng-repeat="sku in parcel.skus"> {{sku.sku}}{{sku.commodity}} </div> </div> </div> </div>