Angularjs排序依据错后$指数 [英] Angularjs wrong $index after orderBy

问题描述

我是新来Angular.js，并有一些问题整理我的数组，上排序的数据的工作。

I am new to Angular.js and have some problems sorting my array and working on that sorted data.

我有项目的列表和由Store.storeName，这是工作迄今希望如此排序的。但是，对数据进行排序后，我删除功能不好用了。我想，那是因为$指数排序后错，所以错误的数据将被删除。

I have a list with items and want so sort it by "Store.storeName", which is working so far. But after sorting the data, my delete-function is not working anymore. I think thats because the $index is wrong after sorting, and so the wrong data is deleted.

我该如何解决呢？订货中的范围，而不是在视图中的数据？那怎么办？

How can I solve that? Ordering the data in the scope and not in the view? How to do that?

下面是一些相关的code

Here is some relevant code:

在View：

<tr ng-repeat="item in items | orderBy:'Store.storeName'">
                <td><input class="toggle" type="checkbox" ng-model="item.Completed"></td>
                <td>{{item.Name}}</td>
                <td>{{item.Quantity}} Stk.</td>
                <td>{{item.Price || 0 | number:2}} €</td>                
                <td>{{item.Quantity*item.Price|| 0 | number:2}} €</td>
                <td>{{item.Store.storeName}}</td> 
                <td><a><img src="img/delete.png" ng-click="removeItem($index)">{{$index}}</a></td>
            </tr>

在我的控制器我有这样的删除功能，这应该删除的具体数据：

And in my controller I have this delete function, which should delete the specific data:

$scope.removeItem = function(index){
        $scope.items.splice(index,1);
    }

这很好地工作在查看订货前。
如果一些重要的东西丢失了，请让我现在。

This works nicely before ordering in the View. If something important is missing, please let me now.

谢谢！

推荐答案

相反或中继的 $指数 - 这 - 因为你已经注意到了 - 将指向索引在排序/过滤阵列，可以将项目本身传递给你的的removeItem 功能：

Instead or relaying on the $index - which - as you have noticed - will point to the index in a sorted / filtered array, you can pass the item itself to your removeItem function:

<a><img src="img/delete.png" ng-click="removeItem(item)">{{$index}}</a>

和修改的removeItem 函数查找使用数组的的indexOf 方法的指标如下：

and modify the removeItem function to find an index using the indexOf method of an array as follows:

$scope.removeItem = function(item){
   $scope.items.splice($scope.items.indexOf(item),1);
}

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