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我有一个显示项目列表的角度视图，每个项目都有两个按钮将每个活动设置为暂停/开始。我知道这是 angular $resource 的一个非常基本的问题，但是我无法在成功 $start 时更新项目（在成功回调中，我无法访问与该项目相关的任何内容）。

function CampaignsListCtrl($scope, Campaign, $resource) {
    $scope.campaigns = Campaign.query();

    $scope.startCampaign = function () {
        var c = new Campaign(this.campaign);
        c.status = 1;
        c.$start(function success(response) {
               //here I'd like to update the value but can't access the item.
               //for example this.campaign.status = 1 doesn't work
               //how can I access the ng-repeat item to update it on success $start?
               //the response represents the updated Object

               console.log (response);

        }, function error (response) {
           console.log (response)
        });
    }

    $scope.pauseCampaign = function () {
        var c = new Campaign(this.campaign);
        c.status = 0;
        c.$pause(function success(response) {
               console.log (response);

        }, function error (response) {
           console.log (response)
        });
    }

}
//// and Campaign is defined as factory
mongoAPI.
factory('Campaign', ['$resource', '$http', function($resource, $http) {
        var actions = {
            'start': {method:'POST'},                           
            'pause': {method:'POST'}                 
        }
        var res = $resource('/api/campaign.js',{}, actions)
        return res;
}]);

在我的观点中：

<div ng-repeat="campaign in campaigns">
     <button type="button" ng-show="campaign.status==0" ng-click="startCampaign(campaign)" class="btn"><i class="icon-play"></i></button>
     <button type="button" ng-show="campaign.status==1" ng-click="pauseCampaign(campaign)" class="btn"><i class="icon-pause"></i></button>
</div>
4

1 回答 1

1

这是一个与闭包/范围相关的问题，而不是 Angular 本身。在成功处理程序内部，this不再是作用域，因此无法访问this.campaign. 您实际上可以通过多种方式解决此问题。

我相信，最简单的方法是接收campaignas 参数并从那里引用它：

你的 HTML 中已经有了这个：

ng-click="startCampaign(campaign)"

所以接收并使用它：

$scope.startCampaign = function (campaign) {
    var c = new Campaign(campaign);
    c.$start(function success(response) {
      campaign.status = 1;
    },
    ...
};
于 2013-04-09T12:29:37.313 回答