On Wed, May 4, 2011 at 6:41 PM, Up2L8 <miller...@gmail.com> wrote:
> I'm trying to use the Template library outside of a normal Django
> webapp and am having difficulty figuring out the right way to register
> a custom filter.
> The current implementation works, but I don't like accessing the guts
> of the template module (see below),
Not sure what you mean by "accessing the guts of the template module".
Aside from the builtin hack (see below), everything you're doing uses the
documented django.template APIs.
or calling my custom Library a
> "builtin".
Whats the right way to do this? If the answer is "use a different
> templating system" then I'm fine with that too... the right tool for
> the right job and all that.
>
The way I do this is by faking a django app, with a ./templatetags/
directory containing my template tags, and configuring INSTALLED_APPS in the
settings:
{{{
## main-file.py
from django.conf import settings
settings.configure(INSTALLED_APPS=("myapp",))
## myapp/templatetags/my_filters.py
from django import template
register = template.Library()
@register.filter
def rev(stuff):
return stuff[::-1]
}}}
.. I can then {% load my_filters %} in templates, just as I would if it were
a full django environment.
This also feels a little hacky, but IMHO cleaner than messing with builtins.
-Ethan
Eric
> ---
> #!/bin/env python2.7
> import django
> import django.template
>
> django.conf.settings.configure()
>
> register = django.template.Library()
> @register.filter
> def rev(stuff):
> return stuff[::-1]
>
> django.template.builtins.append(register) #Eww.. there has to be a
> better way!
>
> tmpl = django.template.Template('{{ "abdc"|rev }}')
> print tmpl.render(django.template.Context({}))
>
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