I want to define the simplest possible filter and then invoke it from
my simplest possible template, however I am beset by some problems:
I'm defining filters thus - this code is at the top of the same .py
file as where I invoke the register_to_string method.
@register.filter
@stringfilter
def tf( val ):
return "ABC"
But when I try to invoke the filter using the 'render_to_string'
shortcut I get this error:
Exception Type: TemplateSyntaxError
Exception Value: Invalid filter: 'tf'
But when I inspect the library object in PDB it appears that all is
well:
(Pdb) register
<django.template.Library object at 0x01AAB930>
(Pdb) register.filters
{'tf': <function tf at 0x01AB03F0>, 'render_object_to_string':
<function render_object_to_string at 0x01AB04B0>, 'e
repr': <function erepr at 0x01AB0470>}
(Pdb) c
Is there some extra trick I need to do in order to make my additional
filters work with the render_to_string shortcut?
THANKS
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