#2537: add *args support to filters (or provide a proper error message)
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Reporter: [EMAIL PROTECTED] | Owner: adrian
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: Template system | Version: SVN
Severity: normal | Keywords:
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Not sure if this should be an enhancement or a (doc) bug.
Currently you can not have a filter which takes *args.
The filter function introspection (in FilterExpression.args_check) does
not check for *args (or **kwdargs).
As a result, it thinks that there are 0 args required, and errors if any
are passed in.
If the function in question does require some arguments, you get that
error if you pass in nothing (the only way to get past args_check).
args_check COULD error if *args is present and no other args are present,
but that has other issues.
This is causing me a headache due to the following:
{{{
#!python
@register.filter
@threadsafe
def not_thread_safe_filter(object, fmt):
## ... not mod_python thread safe code
}}}
This will hold true for all the generic decorators like threadsafe which
just use (*args, **kwdargs).
The obvious 'fix' would be to put the code from @threadsafe into the
filter, which is what I have had to do, but that is a weak argument.
At the very least the doc needs to be patched to mention this issue.
--
Ticket URL: <http://code.djangoproject.com/ticket/2537>
Django <http://code.djangoproject.org/>
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