template documentation has wrong example

[Can Burak Cilingir <canburak@…>]

following code causes "module has no stringfilter" error

from django import template

@template.stringfilter
def lower(value):
    return value.lower()

you also need to register that filter (stringfilter is not registering it). correct example would be:

from django import template

@register.filter(name="endswith")
@template.defaultfilters.stringfilter
def endswith(value,arg):
    return value.endswith(arg)

[Chris Beaven]

Example is here: ​http://www.djangoproject.com/documentation/templates_python/#template-filters-which-expect-strings

The example just shows the code which needs to be added for the specific case, not a full working example of a template.

...although perhaps the "registering a filter" bit could have a heading of it's own and it could go below "template filters which expect strings" to clarify things.

[Malcolm Tredinnick]

(In [6143]) Fixed #4793 -- Tweaked custom filter documentation a little to possibly reduce some confusion. Thanks, SmileyChris.