Django 在某个页面上更改为我的左导航栏?

Django 在某个页面上更改为我的左导航栏?,django,html,django-templates,django-context,Django,Html,Django Templates,Django Context,也许我走错了方向。。。但我要做的是改变左边的导航,我在哪个页面上。base.html中的左导航在整个过程中都很明显,但是一旦用户访问了forums.html(extensed base.html),我就想更改左导航 base.html: {% if not no_left_bar %} <div class="container"> <div class="row"> <!-- Left Side Bar -->

也许我走错了方向。。。但我要做的是改变左边的导航,我在哪个页面上。base.html中的左导航在整个过程中都很明显,但是一旦用户访问了forums.html(extensed base.html),我就想更改左导航

base.html:

{% if not no_left_bar %}
    <div class="container">
        <div class="row">
        <!-- Left Side Bar -->
             <nav>
                  original base.html nav goes here
             </nav>
             <!-- Some condition that goes here/ When forums.html -->
             <nav>
                  forums.html( extends base.html ) nav goes here
             </nav>
         </div>
     </div>
{% endif %}
{%if not no_left_bar%}
原始base.html导航位于此处
html(extends base.html)导航到这里
{%endif%}

我不知道是否必须通过基本上下文传递它。我感谢您的帮助和任何想法/建议。

django
{%block%}
模板标记允许您定义可由子模板覆盖的内容块。试着这样做:

base.html

<div class="container">
    <div class="row">
        {% block nav %}
             <nav>
                  <!-- original base.html nav goes here -->
             </nav>
         {% endblock %}
     </div>
 </div>
{% extends "base.html" %}

{% block nav %}

    <nav>
        <!-- new forums.html nav goes here -->
    </nav>

{% endblock %}

{%block nav%}
{%endblock%}
然后在forums.html中

<div class="container">
    <div class="row">
        {% block nav %}
             <nav>
                  <!-- original base.html nav goes here -->
             </nav>
         {% endblock %}
     </div>
 </div>
{% extends "base.html" %}

{% block nav %}

    <nav>
        <!-- new forums.html nav goes here -->
    </nav>

{% endblock %}
{%extends“base.html”%}
{%block nav%}
{%endblock%}
输出将如下所示

<div class="container">
    <div class="row">
            <nav>
                <!-- new forums.html nav goes here -->
            </nav>
     </div>
 </div>

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