for others looking for an answer, put your value between double quotes:
<a href='../{{ position|add:"-1" }}/'>Previous</a> |
<a href='../{{ position|add:"1" }}/'>Next</a>
El jueves, 6 de diciembre de 2007 15:44:32 UTC-6, J. Clifford Dyer escribió:
>
> Hello.
>
> I'm trying to get a template to render previous and next links on a series
> of pages, as follows.
>
> <a href='../{{ position|add:-1 }}/'>Previous</a> |
> <a href='../{{ position|add:1 }}/'>Next</a>
>
> And I've come across some unexpected behavior. The first line does not
> work (add:-1), while the second line does. The first line throws a
> TemplateSyntaxError ("add requires 1 arguments, 0 provided"). It works if
> I change it to {{ position|add:"-1" }}, but that strikes me as vaguely
> crappy, especially since the positive version works as an int. Also
> curious if this is the same issue as the one had by ifequal and ifnotequal
> in ticket #3670.
>
> Anybody else seen this issue?
>
> Cheers,
> Cliff
>
>
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