如何在 AngularJS 中动态添加指令? [英] How can I dynamically add a directive in AngularJS?

问题描述

我对我正在做的事情有一个非常简化的版本，可以解决问题.

I have a very boiled down version of what I am doing that gets the problem across.

我有一个简单的指令.每当您单击一个元素时，它就会添加另一个元素.但是，它需要先编译才能正确呈现.

I have a simple directive. Whenever you click an element, it adds another one. However, it needs to be compiled first in order to render it correctly.

我的研究引导我$compile.但是所有的例子都使用了一个复杂的结构，我真的不知道如何在这里应用.

My research led me to $compile. But all the examples use a complicated structure that I don't really know how to apply here.

小提琴在这里:http://jsfiddle.net/paulocoelho/fBjbP/1/

JS 在这里:

var module = angular.module('testApp', [])
    .directive('test', function () {
    return {
        restrict: 'E',
        template: '<p>{{text}}</p>',
        scope: {
            text: '@text'
        },
        link:function(scope,element){
            $( element ).click(function(){
                // TODO: This does not do what it's supposed to :(
                $(this).parent().append("<test text='n'></test>");
            });
        }
    };
});

Josh David Miller 的解决方案:http://jsfiddle.net/paulocoelho/fBjbP/2/

Solution by Josh David Miller: http://jsfiddle.net/paulocoelho/fBjbP/2/

推荐答案

你有很多毫无意义的 jQuery，但 $compile 服务在这种情况下实际上超级简单:

You have a lot of pointless jQuery in there, but the $compile service is actually super simple in this case:

.directive( 'test', function ( $compile ) {
  return {
    restrict: 'E',
    scope: { text: '@' },
    template: '<p ng-click="add()">{{text}}</p>',
    controller: function ( $scope, $element ) {
      $scope.add = function () {
        var el = $compile( "<test text='n'></test>" )( $scope );
        $element.parent().append( el );
      };
    }
  };
});

您会注意到我也重构了您的指令以遵循一些最佳实践.如果您对此有任何疑问，请告诉我.

You'll notice I refactored your directive too in order to follow some best practices. Let me know if you have questions about any of those.

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