Edited docs/templates_python.txt change from [6143]

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6159 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Adrian Holovaty 2007-09-14 04:04:51 +00:00
parent 2bec822ff3
commit e86d35879f
1 changed files with 9 additions and 5 deletions

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@ -642,12 +642,12 @@ your function. Example::
"Converts a string into all lowercase"
return value.lower()
Template filters which expect strings
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Template filters that expect strings
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you're writing a template filter which only expects a string as the first
argument, you should use the included decorator ``stringfilter``. This will
convert an object to it's string value before being passed to your function::
If you're writing a template filter that only expects a string as the first
argument, you should use the decorator ``stringfilter``. This will
convert an object to its string value before being passed to your function::
from django.template.defaultfilters import stringfilter
@ -655,6 +655,10 @@ convert an object to it's string value before being passed to your function::
def lower(value):
return value.lower()
This way, you'll be able to pass, say, an integer to this filter, and it
won't cause an ``AttributeError`` (because integers don't have ``lower()``
methods).
Registering a custom filters
~~~~~~~~~~~~~~~~~~~~~~~~~~~~