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父控制器作用域变量如何从嵌入指令作用域的函数中更新?

我通过以下方式使用嵌入将指令嵌入到另一个指令中:

<my-table>
  <my-getter-button></my-getter-button>
</my-table>

my-table 和 my-getter-button 的代码如下:

my-table模板:

<table>
  <tr ng-repeat="item in items">
    <td data-id="{{item.Id}}" ng-transclude></td>
  </tr>
</table>

my-table指示:

.directive('myTable', function () {
      return {
          transclude: true,
          restrict: 'E',
          templateUrl: 'views/mytable.html',
          scope: false
      };
  });

my-getter-button指令(带模板):

app.directive('myGetterButton', function () {
    function link(scope, element) {
        scope.finalizeGet = function () {
            var id = element.parent().data('id');
            scope.clear();  // <-- works fine (from parent controller)
            scope.get(id)  // <-- works fine (from parent controller)
            .success(function (data) {
                // The line below was supposed to 
                // update the variables within the parent controller:
                scope.$parent.instance = data; // or scope.instance = data;
                angular.element('#detailsModal').modal('show');
            })
            .error(function (data) {
                scope.errors = data;
            });
        };
    };

    return {
        restrict: 'E',
        template: '<button class="btn btn-info" ng-click="finalizeGet()">' +
                      '<span class="glyphicon glyphicon-book"></span>' +
                  '</button>',
        scope: false,
        link: link
    };
});

我期待scope.$parent.instance = data; // or scope.instance = data;更改父控制器scope.instance,但它没有。

4

1 回答 1

0

我为自己的问题找到了解决方案。原来我需要的是一个 setter 函数。我在控制器中添加了以下内容:

// Set current model instance of scope.
$scope.setInstance = function(data) {
  $scope.instance = data;
};

并调用setter函数(而不是进行赋值操作),如下:

// ...
.success(function (data) {
  scope.setInstance(data);
  angular.element('#detailsModal').modal('show');
})
// ...

它更新了父控制器范围内的变量。

于 2015-03-05T08:47:24.560 回答