使用Chameleon ZPT渲染具有任意深度的嵌套元素

问题描述

我正在使用Pyramid框架，我想用Chameleon渲染一个带有任意深度的嵌套列表(ul，li)的html菜单.

I am using Pyramid framework and I would like to render with Chameleon a html menu with nested lists (ul, li) of an arbitrary depth.

我无法在Chameleon中找到某种递归方法.似乎有如此普遍的需求，所以我想知道渲染具有任意深度的嵌套元素的正确方法是什么?

I cannot find some sort of recursive method in Chameleon in order to do so.It seems such a common need so I am wondering what is the right way of rendering nested elements with an arbitrary depth ?

但是，可能还有些菜单小部件"已经可用，经过全面测试并与金字塔和变色龙兼容?

But, there might be also some menu «widget» already available, fully tested and compatible with pyramid and Chamelon ?

推荐答案

<ul metal:define-macro="comment_list">
  <li tal:repeat="comment comments" class="comment" comment_id="${comment.id}">
    <div>ID: ${comment.id} ${comment.body}</div>
    <div tal:define="comments comment.children">
      <ul metal:use-macro="template.macros['comment_list']" />
    </div>
  </li>
</ul>

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