Jinja2块嵌套问题 [英] Jinja2 block nesting issue

问题描述

我在项目中使用 jinja2 作为模板语言。这里是简化的模板结构：

base.html ：

  {％block content％} {％endblock％} 
 {％block sidebar％} {％endblock％} 
 


$ b

content.html ：



  {％extend' base.html'％} 
 
 {％block content％} 
< div class =content> 
 Content 
 {％block sidebar％} 
< div class =sidebar>边栏< / div> 
 {％sidebar％} 
< / div> 
 {％endblock％} 
  

content.html render：



 < div class =content> 
 Content 
< div class =sidebar>边栏< / div> 
< / div> 
< div class =sidebar>边栏< / div> 
  

如您所见，存在 sidebar 两次渲染 content.html 。

问题：

有没有办法避免出现<$在$ content 中留下侧边栏 {％block sidebar％} code> {％block content％} ？

解决方案

模板是无效的 - 你明确定位侧边栏相关的内容在内容块，所以它会在那里出现。此外，您的base.html似乎也是无效的，它应该看起来更像是：
$ b $ pre $％block％％{％endblock ％}
{％block sidebar％} {％endblock％}

I am using jinja2 as a template language in my project. Here is simplified templates structure:

base.html:

{% block content %}{% endblock %}
{% block sidebar %}{% endblock %}

content.html:

{% extend 'base.html' %}

{% block content %}
    <div class="content">
        Content
        {% block sidebar %}
            <div class="sidebar">Sidebar</div>
        {% sidebar %}
    </div>
{% endblock %}

And the result of content.html render:

<div class="content">
    Content
    <div class="sidebar">Sidebar</div>
</div>
<div class="sidebar">Sidebar</div>

As you may see, sidebar is present twice at rendered content.html.

Question:

Is there a way to avoid appearance of the sidebar in content, leaving {% block sidebar %} inside {% block content %} ?

解决方案

I think your content.html template is invalid - you're clearly positioning sidebar related content inside the content block, so it will allways appear there. Also, your base.html seems invalid as well, it should look more like:

{% block content %}{% endblock %}
{% block sidebar %}{% endblock %}

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