问题
I want to replace the standard {% if %} template tag with a "smart if" custom tag from this snippet, because I don't want to write {% load smart_if %} every time. Also, "smart if" will come into core template system very soon.
I forgot where I saw a piece of code that does this. Does anyone know how to replace a built-in templatetag?
回答1:
Not a full solution to replace the "if" tag, but you can automatically load template tags.
回答2:
Place this somewhere you know will get run:
from django.template import add_to_builtins
add_to_builtins('mysite.myapp.templatetags.smart_if')
... while placing smart_if.py containing the smart_if code at the appropriate location. This effectively overrides the if tag with "smart if" accross the whole site.
来源：https://stackoverflow.com/questions/1639657/django-replacing-built-in-templatetag-by-custom-tag-for-a-whole-site-without