Question

Why does this return NoReverseMatch?

html:

{% url vote thing.id thing.slug %}

urls.py:

url(r'^vote/(?P<object_id>\d+)/(?P<slug>[w\-]+)/$', 'app.views.the_view', name='vote'),

views.py:

def the_view(request, object_id, slug):
    thing_list = Thing.objects.all()
    return render(request, 'vote.html', {'thing_list':thing_list})

Answer 1

you must use the following:

{% url vote object_id=thing.id slug=thing.slug %}

since you have explicitly named the matched groups in your pattern.

Note that starting from Django 1.5 you must do:

{% url 'vote' .. %}

instead of:

{% url vote ..%}

See it in the django docs here https://docs.djangoproject.com/en/dev/ref/templates/builtins/?from=olddocs#url