无法从指令调用父控制器方法

I've seen the many, many, many, many questions on this problem but for some reason I still can't bind ng-click in my directive to a method on the parent controller. I'm pretty sure I've got my scope isolation and method parameter passing right but no luck so far. A gross simplification (this app is huge) of my JS looks like this:

我已经看到了关于这个问题的许许多多问题，但是出于某种原因，我仍然不能将我的指令中的ng-click绑定到父控制器上的一个方法。我很确定我的范围隔离和方法参数传递是正确的，但到目前为止没有运气。我的JS的一个粗略的简化(这个app很大)是这样的:

angular.module('myApp', []);

angular.module('myApp').directive('myCustomDirective', customDirective);

function customDirective() {
  return {
    restrict: 'E',
    scope: {
      myCallback: '&myCallback'
    }
    template: '<div><h3>My directive</h3><p>I am item {{itemIndex}}</p><button ng-click="myCallback({itemIndex: itemIndex})">Click to call back</button></div>'
  }
}

angular.module('myApp').controller('myController', myController);

function myController() {
  var vm = this;
  vm.selectedIndex = -1;

  vm.items = [0, 1, 2, 3, 4];

  vm.callbackMethod = function(itemIndex) {
    vm.selectedIndex = itemIndex;
  }
}

and the similarly simplified markup looks like this:

类似的简化标记如下:

<!DOCTYPE html>
<html ng-app="myApp">

  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.7/angular.js"></script>
    <script src="script.js"></script>
  </head>

  <body>
    <div ng-controller="myController as test">
      <p>Selected item: {{test.selectedIndex}}</p>
      <my-custom-directive my-callback="test.callbackMethod" ng-repeat="item in test.items" ng-init="itemIndex = $index"></my-custom-directive>
    </div>
  </body>

</html>

I'm at a loss here as I've followed every SO post and blog on the subject and still nothing. Just to make things worse, the Plunk I made to illustrate this problem also doesn't work ($injector:nomod) - bonus points if anyone can spot why! ;-)

我在这里不知所措，因为我一直在关注关于这个主题的每一篇SO和博客，但仍然一无所获。更糟糕的是，我用来说明这个问题的“扑通”也不起作用(注:如果任何人都能发现原因的话)。:-)

2 个解决方案

#1

You should define method with parameter, rather than putting it reference on directive element.

您应该使用参数定义方法，而不是将它引用到指令元素上。

my-callback="test.callbackMethod(itemIndex)"

Also do pass current element index to directive by adding it in isolated scope.

还通过在隔离范围中添加当前元素索引来将其传递给指令。

scope: {
  myCallback: '&myCallback',
  itemIndex: '='
},

Demo Here

演示

#2

I added an extra attribute to your directive and removed the ng-init.

我向您的指令添加了一个额外的属性，并删除了ng-init。

 <my-custom-directive my-callback="test.callbackMethod($index)" ng-repeat="item in test.items track by $index" theindex="$index"></my-custom-directive>

Example

例子

#1