AngularJS 递归模板渲染

我就是无法让它发挥作用。简化一切并将其放在小提琴中：http://jsfiddle.net/svdoever/94aQH/1/ http://jsfiddle.net/svdoever/94aQH/1/.

我想渲染一本书的分层章节，其中包含段落，段落可以包含子段落。

Code:

angular.module("myApp", []).controller("TreeController", ['$scope', function($scope) {
$scope.vm = {};
$scope.vm.chapter = {
        "Id": "N7313",
        "Title": "1 Chapter1",
        "Content": "<p>Contents1</p>",
        "Paragraphs": [
            {
                "Id": "N1.1",
                "Title": "1.1 Paragraph1.1",
                "Content": "<p>Content2</p>",
                "Paragraphs": [
                    {
                        "Id": "N1.1.1",
                        "Title": "1.1.1 Paragraph1.1.1",
                        "Content": "<p>ContentA</p>",
                        "Paragraphs": []
                    },
                    {
                        "Id": "N1.1.2",
                        "Title": "1.1.2 Paragraph1.1.2",
                        "Content": "<p>ContentB.</p>",
                        "Paragraphs": []
                    }
                ]
            },
            {
                "Id": "N1.2",
                "Title": "1.2 Paragraph1.2",
                "Content": "<p>Content3.</p>",
                "Paragraphs": []
            }
        ]
    };
}]);

和 HTML：

<div ng-app="Application" ng-controller="TreeController">
  <script id="paragraphTmpl.html" type="text/ng-template">
    <a class="anchor" ng-attr-id="data.Id"></a>
    <h4 ng-bind="data.Title" />
    <div class="paragraph-text" ng-bind-html="data.Content"></div>
    <!-- Want to loose the div in the repeat as well -->
    <div ng-repeat="paragraph in data.Paragraphs" ng-include="paragraphTmpl.html"></div>
  </script>

  <div class="bookchapter">
    <a class="anchor" ng-attr-id="vm.chapter.Id"></a>
    <h3 ng-bind="vm.chapter.Title" />
    <div class="chapter-text" ng-bind-html="vm.chapter.Content"/>
    <div ng-repeat="paragraph in vm.chapter.Paragraphs" ng-include="paragraphTmpl.html"/>
  </div>
</div>

我也不希望按照评论中指定的方式在重复中呈现 div。我知道如何使用淘汰赛来做到这一点，但找不到 AngularJS 的它。

如有帮助，将不胜感激。

如果您使用子作用域来管理任意大大小的递归，我认为您需要使用该元素。你还能怎样data引用不同的对象，如果它们都共享相同的父元素？

因此我认为你有两个选择：创建一个具有compile函数（我不太熟悉）或对段落进行硬编码以具有最大递归深度（使用ngIf就像在我的 plnkr 中删除未使用的<div>的）。这是这是一个让你入门的好问题 https://stackoverflow.com/questions/14430655/recursion-in-angular-directives。 （当然还有阅读 Angular 的文档指令 http://docs.angularjs.org/guide/directive将会很有帮助，如果你还没有的话）。

我修复了你的代码以执行所有操作，但删除了额外的 div。

http://plnkr.co/edit/ONnvYj91HRSvboWUxDg2 http://plnkr.co/edit/ONnvYj91HRSvboWUxDg2

<div ng-app="Application" ng-controller="TreeController">
  <script id="paragraphTmpl.html" type="text/ng-template">
    <a class="anchor" ng-attr-id="data.Id"></a>
    <h4 ng-bind="data.Title"></h4>
    <div class="paragraph-text" ng-bind-html="data.Content"></div>
    <!-- Want to loose the div in the repeat as well -->
    <ng-include
      ng-if="data.Paragraphs.length > 0" 
      onload="data = paragraph" 
      ng-repeat="paragraph in data.Paragraphs" 
      src="'paragraphTmpl.html'"></div>
  </script>

  <div class="bookchapter">
    <a class="anchor" ng-attr-id="vm.chapter.Id"></a>
    <h3 ng-bind="vm.chapter.Title"></h3>
    <div class="chapter-text" ng-bind-html="vm.chapter.Content"></div>
    <ng-include  
      ng-repeat="paragraph in vm.chapter.Paragraphs" 
      ng-if="vm.chapter.Paragraphs.length > 0"
      src="'paragraphTmpl.html'" 
      onload="data = paragraph"/>
  </div>
</div>