ng-repeat内的Angularjs指令不更新外部控制器数据

I have a isolate scope directive that I am using inside ng-repeat, which is iterating over an array from the controller of that template. The template is as follows:

我在ng-repeat中使用了一个隔离范围指令，它从模板的控制器迭代一个数组。模板如下:

<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="bootstrap.min.css" />
    <script src="angular.min.js"></script>
    <script src="script1.js"></script>
  </head>

  <body ng-app="AddNewTest" ng-controller="AddNewController">
    <div class="items" ng-repeat="row in rows">
      <add-new-row data="row" index="$index"></add-new-row>
    </div>
  </body>

</html>

The directive is defined as follows:

该指示的定义如下:

angular.module('AddNewTest', []).
directive('addNewRow', function ($timeout) {
  return {
    controller: 'AddNewController',
    link: function (scope, element, attribute) {
      element.on('keyup', function(event){
        if(scope.index + 1 == scope.rows.length) {
          console.log('keyup happening');
          $timeout(function () {
            scope.rows.push({ value: '' });
            scope.$apply();
          });
        }
      })
    },
    restrict: 'E',
    replace: true,
    scope: {
      index: '='
    },
    template: '<div class="add-new"><input type="text" placeholder="{{index}}" ng-model="value" /></div>'
  }
}).
controller('AddNewController', function ($scope, $timeout) {
  $scope.rows = [
    { value: '' }
  ];
});

But even after adding new row and doing a $apply() the ng-repeat is not rendering the new data added. Please help.

但是，即使添加了新行并执行了$apply()之后，ng-repeat并没有呈现添加的新数据。请帮助。

Plnkr Link Here

Plnkr链接在这里

2 个解决方案

#1

Pass array of rows to directive as follow:-

将行数组传递给指令如下:-

 scope: {
  index: '=',
  rows :'='
},

<add-new-row rows="rows"  index="$index"></add-new-row>

Working plunker

工作恰好

#2

Each ng-repeat creates an isolated scope than you declare an isolated scope inside your directive that has the same controller as the div. You're swimming in the $scope soup :)

每个ng-repeat创建一个独立的范围，而不是在指令中声明一个独立的范围，该范围具有与div相同的控制器。

I would personnally make a clean and independent directive with its own controller.

我将亲自制定一个干净和独立的指令与它自己的控制器。

angular.module('AddNewTest', []).
directive('addNewRow', function () {
  return {
    restrict: 'E',
    controller: MyController,
    controllerAs: '$ctrl',
    template: '{{$ctrl.rows.length}}<div class="add-new"><pre>{{$ctrl.rows | json}}</pre><input type="text" placeholder="0" ng-model="value" /></div>'
  }
}).
controller('MyController', MyController);

function MyController($scope) {
  var vm = this;
  this.rows = [ { value: '' } ];

   $scope.$watch("value",function(value){
     if(value)
      vm.rows.push({ value: value });
   });
}

http://plnkr.co/edit/AvjXWWKMz0RKSwvYNt6a?p=preview

Of course you can still bind some data to the directive using bindToController (instead of scope:{}) and if you need an ng-repeat, do it in the directive template directly.

当然，您仍然可以使用bindToController(而不是范围:{})将一些数据绑定到指令，如果您需要一个ng-repeat，那么直接在指令模板中执行它。

#1