AngularJS自定义指令ng-repeat,无法调用null的方法'insertBefore'

时间:2014-01-06 17:11:29

标签: angularjs ng-repeat angularjs-google-maps

在我的自定义AngularJS google maps directive中,我有map指令和marker指令,marker指令需要map指令。

以下是我的问题的简化版本,我不能使用ng-repeat。

<!DOCTYPE html>
<html ng-app="testapp">
<head>
<script src="http://code.angularjs.org/1.2.5/angular.js"></script>
<script>
var testapp = angular.module('testapp', []);
testapp.directive('map', [
  function () {
    return {
      restrict: 'E',
      controller: function($scope) {
      },
      link: function (scope, element, attrs) {
        element.html("this will be a map");
      }
    };
  }
]);
testapp.directive('marker', [
  function () {
    return {
      require: '^map',
      restrict: 'E',
      link: function (scope, element, attrs, mapController) {
        console.log('position', attrs.position);
      }
    };
  }
]);
function MyCtrl($scope) {
  $scope.positions = [[39, -90],[38, -91]];
}
</script>
</head>

<body ng-controller="MyCtrl">
  <map zoom="12" center="[39, -90]">
    <marker ng-repeat='p in positions' position="{{ p }}"></marker>
  </map>
</body>
</html>

这是在这里演示的,http://plnkr.co/edit/IN237QwEdNkdzpDaX70z?p=preview 错误是,

TypeError: Cannot call method 'insertBefore' of null
    at http://code.angularjs.org/1.2.5/angular.js:2760:14
    at forEach (http://code.angularjs.org/1.2.5/angular.js:303:18)
    at forEach.after (http://code.angularjs.org/1.2.5/angular.js:2759:5)
    at Object.JQLite.(anonymous function) [as after] (http://code.angularjs.org/1.2.5/angular.js:2825:17)
    at Object.enter (http://code.angularjs.org/1.2.5/angular.js:3906:17)
    at http://code.angularjs.org/1.2.5/angular.js:19048:26
    at publicLinkFn (http://code.angularjs.org/1.2.5/angular.js:5483:29)
    at boundTranscludeFn (http://code.angularjs.org/1.2.5/angular.js:5595:21)
    at controllersBoundTransclude (http://code.angularjs.org/1.2.5/angular.js:6189:18)
    at ngRepeatAction (http://code.angularjs.org/1.2.5/angular.js:19046:15) 

这仅适用于标记指令 http://plnkr.co/edit/4i8Rtvk3Qu1U8JRLRAal?p=preview

我认为当父指令操作了DOM时会出现问题。 但是,由于我们使用指令,它必须操纵dom。

任何帮助都将不胜感激。

1 个答案:

答案 0 :(得分:4)

问题是您要用

替换地图(标记)的内容
element.html("this will be a map");

如果您尝试追加它,它将毫无问题地工作。

element.append("this will be a map");

Here is a JSBin