Question

I am trying to incorporate django-schedule into my project. Django-schedule s source is here. I don t like the urls, because they all capture a slug. My project will only allow one calendar per user, so it doesn t make sense to capture the slug. So, I wrapped the django-schedule views like this (look up the slug using the current user, and pass it to django-schedule s views):

from schedule.views import calendar_by_periods
from schedule.models import Calendar
from schedule.periods import Month

def cal_by_periods_wrapper(view):
    def new_view(request, *args, **kwargs):
        kwargs[ calendar_slug ] = Calendar.objects.get_calendars_for_object(obj=request.user, distinction="owner")[0].slug
        return view(request, *args, **kwargs)
    return new_view

And here is the relevant section from urls.py:

urlpatterns = patterns(  ,
                url(r ^$ ,
                    cal_by_periods_wrapper(calendar_by_periods),
                           name = "month_calendar",
                           kwargs={ periods : [Month],  template_name :  schedule/calendar_month.html }),

This works fine until it hits one of the template tags included with django-schedule, prev_url:

@register.simple_tag
def prev_url(target, slug, period):
    return  %s%s  % (
        reverse(target, kwargs=dict(calendar_slug=slug)),
            querystring_for_date(period.prev().start))

This function raises:

TemplateSyntaxError at /teacher/calendar/

Caught an exception while rendering: Reverse for  month_calendar  with arguments 
 ()  and keyword arguments  { calendar_slug : u asdf }  not found.

How can I wrap this view and still make the reverse call work?

Answer 1

This has nothing to do with wrapping the function. It s just that you no longer have a URL with the name month_calendar which takes a calendar_slug argument. Either define one in your urlconf, or edit the templatetag.

Edit after comment Yes but the reverse call is still passing a slug argument, and there s no month_calendar url which takes one, so the reverse match fails.

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