仅将类添加到 AngularJS 中的特定 ng-repeat [英] Only add class to specific ng-repeat in AngularJS

问题描述

我的应用中有一个类似 Facebook 风格的系统，我想让用户点击时喜欢按钮改变颜色.这是通过添加一个 .active 类来完成的，但我不知道如何让我的 ng-repeat 中的一个项目具有活动类.

这是我的观点:

<div><a ng-click="favourite(data.ID)" class="tab-item" ><i ng-class="{'active': favourited}" class="icon ion-thumbsup" ></i>最喜欢的</a>

ng-click 将请求发送到服务器以存储在数据库中，一旦此请求成功，当控制器中的favourite"变量变为 true 时，ng-class 将类更改为活动:

$scope.favourite = function(dataID){$favourite.favourite(dataID).then(function(data){$scope.favourited = true;});}

这会导致所有收藏按钮都处于活动状态，所以我只是不知道如何使当前按钮处于活动状态.

提前致谢

解决方案

这是因为您使用的是 $scope.favourited，因为对于所有 ng-repeat，该变量只有一个副本，因此它会更新所有内容.因此，请尝试根据您的要求为单个记录使用一些变量，因为您一次只想将单个记录标记为收藏.

替换

ng-class="{'active': favourited}" 与 ng-class="{'active': data.favourited}"

和

$scope.favourited = true; 与 data.favourited = true;

I have a Facebook style like system in my app and I want to make the like button change colour when the user clicks. This is to be done by adding an .active class, but I cant figure out how to get just the one item in my ng-repeat to have thr active class.

Heres my view:

<div class="list card" ng-repeat="data in array">
  <div>
    <a ng-click="favourite(data.ID)" class="tab-item" >
      <i ng-class="{'active':  favourited}" class="icon ion-thumbsup" ></i>
      Favourite
    </a>
  </div>
</div>

The ng-click sends the request to the server to store in the database, and the ng-class changes the class to active when the "favourite" variable from the controller changes to true once this request is sucesfull:

$scope.favourite = function(dataID){
    $favourite.favourite(dataID).then(function(data){
      $scope.favourited = true;
    });
  }

This causes all of the favourite buttons to become active, so I just dont know how to make just the current button active.

Thanks in advance

解决方案

This is because you are using $scope.favourited as there is only single copy of this variable for all ng-repeats, hence it updates for all. So try to use some variable for individual record as per your requirement as you only want to mark a single record as favourite at a time.

Replace

ng-class="{'active': favourited}" with ng-class="{'active': data.favourited}"

and

$scope.favourited = true; with data.favourited = true;

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