How to reverse url with optional fields arguments in django?

Question

I have an url with an optionnal argument:

urlpatterns = patterns(
    'my_app.views',
    url('schedule/(?P<calendar_id>\d+)/(?:month(?P<relative_month>[\+,\-]\d)/)$',
    'attribute_event',name='attribute_event')
)

In my template I have a link:

{% url attribute_event calendar.id %}

But I have an error saying the url can't be reversed with these args. Must I use 2 url regex entry and url names?!

christophe31 · Accepted Answer · 2011-08-25 12:55:23Z

6

only possible if you split it into two urls:

urlpatterns = patterns('my_app.views',
    url('schedule/(?P<calendar_id>\d+)/month(?P<relative_month>[\+,\-]\d)/$',
        'attribute_event', name='attribute_event_relative'),
    url('schedule/(?P<calendar_id>\d+)/)$', 
        'attribute_event', name='attribute_event'),
)

in template:

{% url attribute_event calendar.id %}

or

{% url attribute_event_relative calendar.id '+1' %}

your view:

def attribute_event(request, calendar_id, relative_month=None):
    pass

edited Aug 25, 2011 at 12:55

christophe31

6,4774 gold badges37 silver badges49 bronze badges

answered Aug 25, 2011 at 12:17

programmersbook

4,1641 gold badge22 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

christophe31 Over a year ago

Hoo damned sorry, in fact my error was in my regex, I forgot "?" as [-2] char... 'schedule/(?P<calendar_id>\d+)/(?:month(?P<relative_month>[\+,\-]\d)/)?$' So I don't need multiple entries.

christophe31 Over a year ago

(As long as I sepcify all args in template even to None)

Jeff T · Accepted Answer · 2012-02-14 20:47:58Z

2

Has to be this ticket:

https://code.djangoproject.com/ticket/9176

answered Feb 14, 2012 at 20:47

Jeff T

6201 gold badge8 silver badges12 bronze badges

Collectives™ on Stack Overflow

How to reverse url with optional fields arguments in django?

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related