You can implement has_applied as a filter instead of a template tag.
https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#writing-custom-template-filters
Haven't check it, but something like {% if user|has_applied_filter: opening
%} should essentially work out for your case.
Another alternative could be use of assignment
tags<https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#assignment-tags>.
>From documentation "This function works the same way as
simple_tag<https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#howto-custom-template-tags-simple-tags>,
except that it stores the tag’s result in a specified context variable
instead of directly outputting it.".
Regards,
Alagappan R
Twitter: @_alagappan <https://www.twitter.com/_alagappan>
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