如何在base.html中使用自定义模板标签 [英] How to use a custom template tag in base.html

问题描述

.是我的项目根目录， manage.py 所在的位置.我在 ./templates/base.html 中有一个基本模板.我在 ./app/templatetags/mytags.py

. is my project root, where manage.py resides. I have a base template at ./templates/base.html. I have a custom template tag in ./app/templatetags/mytags.py

from django import template

register = template.Library()

@register.unread_tag
def get_unread(user):
    return user.notification_set.filter(viewed=False).count()

如何使此标记可用于base.html，所有应用程序级模板都将从该标记继承.

How do I make this tag usable for base.html, from which all app-level templates inherit.

推荐答案

您的标签定义不正确.您需要使用 注册.simple_tag 装饰器:

Your tag definition is not correct. You need to use register.simple_tag decorator:

@register.simple_tag(name='unread')
def get_unread(user):
    return user.notification_set.filter(viewed=False).count()

然后，您需要 load 标记插入模板:

Then, you need to load the tag into the template:

{% load mytags %}

然后，您可以在模板中使用标记:

Then, you can use the tag in the template:

{% unread request.user %}

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