AngularJS NG选项排除特定对象 [英] AngularJS ng-options to exclude specific object

问题描述

我使用的角度NG选项来显示几个选项作为当前类父类的选择，基本上这些选项包含所有现有的类别，而我需要排除NG选项当前类别，这非常有意义，因为一个类别不能成为自己的父类。那么，如何做呢？目前，我有以下code：

 ＆LT; TR NG重复=，在allCategories类别＆GT;
    百分位NG绑定=category.name＆GT;＆LT; /第i
    ＆LT;第i个
        ＆LT;选择NG选项=在allCategories为everyCategory everyCategory.name＆GT;
            ＆LT;期权价值=＆GT;选择父类＆LT; /选项＆GT;
        ＆LT; /选择＆GT;
    ＆LT; /第i
＆LT; / TR＆GT;
 

解决方案

您应该使用的过滤器。

 ＆LT;选择NG选项=在allCategories everyCategory.name为everyCategory |过滤器：{名称：'！ + category.name}＆GT; ...＆LT; /选择＆GT;
 

I'm using angular ng-options to show a with several options as the choices of parent category of the current category, basically these options contain all the existing categories, and I need to exclude the current category from ng-options, which quite make sense because a category cannot be the parent category of itself. So how do I do that? Currently I have the following code:

<tr ng-repeat="category in allCategories">
    <th ng-bind="category.name"></th>
    <th>
        <select ng-options="everyCategory.name for everyCategory in allCategories">
            <option value="">Select parent category</option>
        </select>
    </th>
</tr>

解决方案

You should use filter.

<select ng-options="everyCategory.name for everyCategory in allCategories | filter: { name: '!' + category.name }">...</select>

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