$ scope不是从控制器注入/继承到带有点符号的指令

时间:2016-01-18 17:33:08

标签: javascript angularjs meanjs

我遇到了从控制器向指令注入/继承范围的问题。重要的是,模块没有分成它自己的var。

angular.module('articles').controller('ArticlesController', ['$scope, ...

]).directive('comments', ['$scope' ... //does not work!

3 个答案:

答案 0 :(得分:4)

您不会将范围作为依赖项注入指令。应该是这样的:

.directive([function() {
    return {
        "link": function($scope, $element, $attrs) { 
             //code here
        }
    }
}]);

答案 1 :(得分:2)

最好的方法是将指令视为黑盒子。您为它提供了一些数据,并更新/显示它。您可以阅读有关指令here的所有必需信息,并声明指令的输入和输出,如下所示:

.directive('myDirective', function() {
  return {
    restrict: 'E',
    scope: {
      myParameter: '=' //this declares directive's interface (2 way binded)
    },
    link: function (scope, element) {
      console.log(scope.myParameter);
    }
  };
});

然后您可以将此指令用作:

<my-directive my-parameter='variable_declared_in_controller'></my-directive>

答案 2 :(得分:0)

我完全用其他几个范围绕过了$scope

    .directive('comments', ['$stateParams', '$location', 'Articles',
  function ( $stateParams, $location, Articles) {

   if ($stateParams.articleId != null){

   var article = Articles.get({
        articleId: $stateParams.articleId
      });

   var comments = {articleId: article.articleId, created: Date.now, comment:"Hello, World!", user: "admin" };

       return{
        restrict: "A",
        scope: true,
        template: "<div></div>"
       };
      }
     }
    ]);