On Nov 19, 9:52 am, "K*K" <[EMAIL PROTECTED]> wrote:
> Hi, All.
>
> I create a custom filter for cut too long string for my app.
>
> Like this:
>
> from django import template
> from django.template.defaultfilters import stringfilter
>
> register = template.Library()
>
> @register.filter(name='cut_by_string')
> @stringfilter
> def cut_by_string(value, arg):
> if len(value) < arg:
> return value
> else:
> return value[:arg-3] + "..."
>
> And in the template I load the filter .py normally, and set below
> codes:
>
> <div><a href="#">{{ testplan.name|cut_by_string:"a" }}</a></div>
>
> But it doesn't work, do I make any mistake in this code ?
I'm not quite sure what the filter is supposed to do, but you're
passing a string and then checking if its length is 'less than'
another string. This doesn't make sense. This line would seem to be
the problem:
if len(value) < arg:
According to the values you've passed, this evaluates to:
if len('string') < 'a':
which will always be true.
I wonder if you meant
if len(value) < len(arg)
??
--
DR.
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