PROSAGA码农传奇-智慧农业-如何在octobercms中显示子类别

<div class =“post-text”itemprop =“text”>
  
    我假设你已经习惯了
     <code>
 nested-tree
 </code>
     [
    <a href="https://octobercms.com/docs/database/traits#nested-tree" rel="nofollow noreferrer">
      https://octobercms.com/docs/database/traits#nested-tree
    </A>
     ]。
  
  <BLOCKQUOTE>
    
      首先我们只是传递父母
       <code>
 parentCats
 </code>
       到我们的视图/页面
    
  </BLOCKQUOTE>
   <pre class="lang-php prettyprint-override">
 <code>
 use HardikSatasiya\SoTest\Models\Categories;

function onStart() {
    $this['parentCats'] = Categories::getAllRoot(); 
}

</code>
 </pre>
  <BLOCKQUOTE>
    
      在页面/视图中显示
       <code>
 category
 </code>
       和它的
       <code>
 sub-categories
 </code>
       取决于
       <code>
 N level
 </code>
       我们可以用这个
       <code>
 render_cats macro
 </code>
    
  </BLOCKQUOTE>
   <pre class="lang-html prettyprint-override">
 <code>
 {% import _self as thisPage %}

{% macro render_cats(items) %}    
    {% import _self as thisPage %}

{% for item in items %} 
 <li>{{ item.level }} {{ item.title }}
 {% if item.childcount > 0 %} 
 <ul>
 {{ thisPage.render_cats(item.children) }} 
 </ul>
 {% endif %}
 </li>
 {% endfor %}
{% endmacro %}

<ul>
 {{ thisPage.render_cats(parentCats) }}
 
</ul>

</code>
 </pre>
  <BLOCKQUOTE>
    
      产量
    
  </BLOCKQUOTE>
   <pre class="lang-html prettyprint-override">
 <code>
 <ul>
 <li>
 0 Parent Cat 1
 
 <ul>
 <li>
 1 Sub cat 1
 <ul>
 <li>2 Sub Sub cat 1
 </li>
 <li>2 Sub Sub cat 3
 </li>
 <li>2 Sub Sub cat 3
 </li>
 </ul>
 </li>
 <li>1 Sub cat 2
 </li>
 </ul>
 </li>
 <li>
 0 Parent Cat 2
 <ul>
 <li>1 Sub cat 3
 </li>
 <li>1 Sub cat 4
 </li>
 </ul>
 </li>
</ul>

</code>
 </pre>
  
    如有疑问请发表评论
  
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