如何重复一个“块"在 Django 模板中 [英] How to repeat a "block" in a django template
问题描述
我想在同一个 Django 模板中使用相同的 {% block %} 两次.我希望这个块在我的基本模板中出现不止一次:
I want to use the same {% block %} twice in the same django template. I want this block to appear more than once in my base template:
# base.html
<html>
<head>
<title>{% block title %}My Cool Website{% endblock %}</title>
</head>
<body>
<h1>{% block title %}My Cool Website{% endblock %}</h1>
</body>
</html>
然后扩展它:
# blog.html
{% extends 'base.html' %}
{% block title %}My Blog{% endblock %}
# pictures.html
{% extends 'base.html' %}
{% block title %}My Pictures{% endblock %}
# cats.html
{% extends 'base.html' %}
{% block title %}My Cats{% endblock %}
我会得到一个异常，因为 Django 希望块只出现一次:
I will get an exception, as Django wants the block to appear only once:
TemplateSyntaxError at/
出现名为title"的block"标签不止一次
一个快速而肮脏的解决方案是将块 title 复制到 title1 和 title2 中:
A quick and dirty solution would be duplicating the block title into title1 and title2:
# blog.html
{% extends 'base.html' %}
{% block title1 %}My Blog{% endblock %}
{% block title2 %}My Blog{% endblock %}
但这违反了DRY 原则.这将是非常困难的，因为我有很多继承模板，也因为我不想下地狱;-)
But this is a violation of the DRY principle. It would be very difficult as I have a lot of inheriting templates, and also because I don't wanna go to hell ;-)
这个问题有什么技巧或解决方法吗?如何在我的模板中重复相同的块，而不复制所有代码?
Is there any trick or work-around to this problem? How can I repeat the same block in my template, without duplicating all the code?
推荐答案
我认为在这种情况下使用上下文处理器是一种矫枉过正.您可以轻松地做到这一点:
I think that use of the context processor is in this case an overkill. You can easily do this:
#base.html
<html>
<head>
<title>{% block title %}My Cool Website{% endblock %}</title>
</head>
<body>
{% block content %}{% endblock %}
</body>
</html>
然后:
# blog.html
{% extends 'base.html' %}
{% block content %}
<h1>{% block title %}My Blog{% endblock %}</h1>
Lorem ipsum here...
{% endblock %}
等等......看起来与 DRY 兼容.
and so on... Looks like DRY-compatible.
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