I just have upgraded from Django 1.11 to 2.0. These are the urls I have for one Django application:
urlpatterns = [
url(r'^logout/$', views.logout, name='logout'),
url(r'^$', views.home, name='home'),
url(r'^pledge/(?P<group_id>[0-9]+)/$',
views.pledge, name='pledge_by_group'),
# I have more urls, but I have omitted them since they are not relevant
url(r'^404/$', views.bad_request, name='404')
]
After upgrading, I checked everything was fine. Then, I changed:
url(r'^pledge/(?P<group_id>[0-9]+)/$', views.pledge, name='pledge_by_group')
to:
url('pledge/<int:group_id>/', views.pledge, name='pledge_by_group'),
in order to take advantage of simplified URL routing syntax in Django 2.0. However, I am getting the following error when I try to access http://localhost:8000/pledges/group/7/:
NoReverseMatch at /pledges/group/7/ Reverse for 'pledge_by_group' with keyword arguments '{'group_id': '7'}' not found. 1 pattern(s) tried: ['pledge//']
This is my view:
@login_required(redirect_field_name='')
def group_pledge(request, group_id):
"""Some docstring..."""
# Some code that is not relevant to the problem
context = {
'pledge_url': reverse('pledges:pledge_by_group',
kwargs={'group_id': group_id}),
} # context has more values, but for practical reasons I don't include them
return render(request, 'pledges/home.html', context)
According to the error, the problem is in this line:
reverse('pledges:pledge_by_group', kwargs={'group_id': group_id})
Can somebody tell me what is going on and how to fix it?
The new syntax requires the use of path function. For example:
from django.urls import path
...
path('pledge/<group_id>/', views.pledge, name='pledge_by_group'),