I am in the middle of tutorial 4, but am getting an error.
What did I do wrong?
NoReverseMatch at /polls/3/vote/
Reverse for 'results' with arguments '(3L,)' and keyword arguments '{}' not
found. 1 pattern(s) tried: [u'polls/(lP<question_id>\\d+)/results/$']
Request Method: POST Request URL:
http://www.alzacloud.net:8000/polls/3/vote/ Django Version: 1.7.1 Exception
Type: NoReverseMatch Exception Value:
Reverse for 'results' with arguments '(3L,)' and keyword arguments '{}' not
found. 1 pattern(s) tried: [u'polls/(lP<question_id>\\d+)/results/$']
Exception Location:
/home/terryl/cloud/local/lib/python2.7/site-packages/django/core/urlresolvers.py
in _reverse_with_prefix, line 468 Python Executable:
/home/terryl/cloud/bin/python Python Version: 2.7.6 Python Path:
['/home/terryl/pjtcloud',
'/home/terryl/cloud/lib/python2.7',
'/home/terryl/cloud/lib/python2.7/plat-x86_64-linux-gnu',
'/home/terryl/cloud/lib/python2.7/lib-tk',
'/home/terryl/cloud/lib/python2.7/lib-old',
'/home/terryl/cloud/lib/python2.7/lib-dynload',
'/usr/lib/python2.7',
'/usr/lib/python2.7/plat-x86_64-linux-gnu',
'/usr/lib/python2.7/lib-tk',
'/home/terryl/cloud/local/lib/python2.7/site-packages',
'/home/terryl/cloud/lib/python2.7/site-packages']
polls/urls.py
from django.conf.urls import patterns, include, url
from django.contrib import admin
from polls import views
#urlpatterns = patterns('',
# url(r'^polls/', include('polls.urls')),
# url(r'^admin/', include(admin.site.urls)),
#)
# ex: /polls/
# ex: /polls/5/
# ex: /polls/5/results/
# ex: /polls/5/vote/
urlpatterns = patterns('',
url(r'^$', views.index, name='index'),
url(r'^(?P<question_id>\d+)/$', views.detail, name='detail'),
url(r'^(lP<question_id>\d+)/results/$', views.results, name='results'),
url(r'^(?P<question_id>\d+)/vote/$', views.vote, name='vote'),
)
polls/views.py
from django.shortcuts import get_object_or_404, renderfrom django.http import
HttpResponseRedirect, HttpResponsefrom django.core.urlresolvers import reverse
from polls.models import Choice, Question# ...def vote(request, question_id):
p = get_object_or_404(Question, pk=question_id)
try:
selected_choice = p.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist):
# Redisplay the question voting form.
return render(request, 'polls/detail.html', {
'question': p,
'error_message': "You didn't select a choice.",
})
else:
selected_choice.votes += 1
selected_choice.save()
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(reverse('polls:results', args=(p.id,)))
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