AngularJS - ngRepeat应用双重时候$编译元素的属性 [英] AngularJS - ngRepeat is applied double times when $compile the element's attributes

问题描述

我想这

$scope.name = 'Angular';
$scope.list = ['foo: {{name}}', 'bar: {{name}}'];

<div ng-repeat="template in list" compile="template"></div>

是

<div real="foo: Angular"></div>
<div real="bar: Angular"></div>

所以我用$编译：

So i use $compile:

$compileProvider.directive('compile', function ($compile) {
    return function (scope, element, attrs) {
        scope.$watch(
            function (scope) {
                return scope.$eval(attrs.compile);
            },
            function (value) {
                //element.html(value);
                //$compile(element.contents())(scope);

                element.attr("real", value);
                element.removeAttr("compile");
                $compile(element)(scope);
            }
        );
    };
})

但是，它的输出：

but, it output:

<div real="foo: Angular"></div>
<div real="foo: Angular"></div>
<div real="bar: Angular"></div>
<div real="bar: Angular"></div>

有啥问题？

演示： http://plnkr.co/edit/OdnriGpd7eMBtfp2u1b2?p=preVIEW

推荐答案

试试这个：

<div ng-repeat="template in list">
    <div compile="template"></div>
</div>

演示

说明

当你把你的指令，在相同的元素与 NG-重复并调用 $编译（元）（范围）; ，你的元素编译 包括NG-重复的，引起了 NG-重复来运行一个多时间。当我还删除该指令NG重复，它的工作原理：

When you put your directive on the same element with ng-repeat and call $compile(element)(scope);, your element is recompiled including the ng-repeat, causing the ng-repeat to run one more time. When I also remove the ng-repeat in the directive, it works:

  element.attr("real", value);
  element.removeAttr("compile");
  element.removeAttr("ng-repeat");
  $compile(element)(scope);

演示

不建议使用此解决方案，因为我们硬code中的 element.removeAttr（NG重复）;

This solution is not recommended because we hard-code the element.removeAttr("ng-repeat");

请记住，也适用优先级：1500 和端子：真正的的指令，以避免再次编译角有后编译元素：

Remember to also apply priority:1500 and terminal:true to the directive to avoid compiling again after angular has compiled the element:

$compileProvider.directive('compile', function($compile) {
    return {
      priority:1500,
      terminal:true,
      link: function(scope, element, attrs) {
        scope.$watch(
          function(scope) {
            return scope.$eval(attrs.compile);
          },
          function(value) {
            //element.html(value);
            //$compile(element.contents())(scope);

            element.attr("real", value);
            element.removeAttr("compile");
            $compile(element)(scope);
          }
        );
      }
    };
  });

有关这两个设置的更多信息。查看<一个href=\"http://stackoverflow.com/questions/19224028/add-directives-from-directive-in-angularjs/19228302#19228302\">Add在AngularJS

For more information about these 2 settings. Check out Add directives from directive in AngularJS

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