即使扩展了，为什么要为每个模板加载静态文件? [英] Why load staticfiles for every template even if it is extended?
问题描述
我有一个 base.html 文件，其中包含一些 '随机' html 代码，我有以下代码:
I have a base.html file which has some 'random' html code and I have the following code:
{% load staticfiles %}
<!DOCTYPE html>
<html>
<head>
...
{% block extra_js_top %}{% endblock %}
</head>
...
</html>
在我的 index.html 文件中，我扩展了 base.html 并加载了一些 额外的 javascript 文件:
In my index.html file I extend base.html and I load some extra javascript files:
{% extends "base.html" %}
...
{% block extra_js_top %}
<script type="text/javascript" src="{% static "js/somejs.js" %}"></script>
{% endblock %}
问题是由于静态变量，额外的 javascript 无法加载.即使我扩展了模板中包含 {% load staticfiles %} 的 base.html ，它也不会加载.最后我解决了在 index.html 中添加一个 {% load staticfiles %} 的问题.
The problem is that extra javascript doesn't load because of the static var. It doesn't load even if I extend base.html which have the {% load staticfiles %} inside the template. Finally I solved the problem adding one more {% load staticfiles %} at index.html.
我的问题是为什么我们应该为我们使用的每个模板添加 {% load staticfiles %} ，即使我们扩展了一个已经拥有它的文件?
My question is why we should add {% load staticfiles %} for every template we use even if we extend a file that has it already?
推荐答案
根据 Django 最新的 文档，这样做是为了可维护性和完整性
As per Django's latest documentation, this is done for the sake of maintainability and sanity
当您加载自定义标签或过滤器库时，标签/过滤器是仅对当前模板可用 - 而不是任何父或子模板继承路径上的模板.
When you load a custom tag or filter library, the tags/filters are only made available to the current template – not any parent or child templates along the template-inheritance path.
例如，如果模板 foo.html 具有 {% load humanize %}，则子模板(例如，具有 {% extends "foo.html" %} 的模板)将没有访问人性化模板标签和过滤器.子模板负责自己的{% load humanize %}.
For example, if a template foo.html has {% load humanize %}, a child template (e.g., one that has {% extends "foo.html" %}) will not have access to the humanize template tags and filters. The child template is responsible for its own {% load humanize %}.
这是为了可维护性和完整性而设计的功能.
This is a feature for the sake of maintainability and sanity.
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