Which urls.py you paste here? The project URLs or the app urls .?
It is because you are using namespace in the url reverse so you need to
named in your project's URLs and put the code paste here in your app urls.
El jueves, 7 de mayo de 2015, James Schneider <jrschneide...@gmail.com>
escribió:
> I'm guessing the issue is actually in your template if you are following
along that page. None of the code in your views would generate that error
from what I can see.
>
> The error indicates that you are trying to reverse('polls:detail') and
not providing any arguments for the URL resolver (or are passing an
empty/missing variable). In the template, this would probably look
something like {% url 'polls:detail' %}. I would guess that you are
forgetting question.id after the view name, assuming you are using the same
variable names as the tutorial.
>
> Check near the bottom of the stack trace on the page, I bet it has a {%
url %} tag highlighted as the culprit.
>
> -James
>
> On May 7, 2015 12:09 AM, "H M" <pressby...@gmail.com> wrote:
>>
>> I am on part 4 django tutorial. The tutorial is very good and I easily
get on part 4 but....
>>
>> I get error: Reverse for 'detail' with arguments '('',)' and keyword
arguments '{}' not found. 1 pattern(s) tried:
[u'polls/(?P<question_id>\\d+)/$']
>>
>> Am I missing something?
>>
>> My code is following:
>>
>>> urlpatterns = patterns('',
>>> url(r'^$', views.index, name='index'),
>>> url(r'^(?P<question_id>\d+)/$', views.detail, name='detail'),
>>> url(r'^(?P<question_id>\d+)/results/$',views.results,
name='results'),
>>> url(r'^(?P<question_id>\d+)/vote/$', views.vote, name='vote'),
>>
>>
>> views.py:
>>
>>> from django.shortcuts import get_object_or_404, render
>>> from django.http import HttpResponseRedirect, HttpResponse
>>> from django.template import RequestContext, loader
>>> from polls.models import Question, Choice
>>> from django.http import Http404
>>> from django.core.urlresolvers import reverse
>>>
>>>
>>> def index(request):
>>> latest_question_list = Question.objects.order_by('-pub_date')[:5]
>>> template = loader.get_template('polls/index.html')
>>> context = RequestContext(request, {'latest_question_list' :
latest_question_list, })
>>> return HttpResponse(template.render(context))
>>>
>>> def detail(request, question_id):
>>> try:
>>> question = Question.objects.get(pk = question_id)
>>> except Question.DoesNotExist:
>>> raise Http404("Question ne postoji")
>>> return render(request, 'polls/detail.html', {'question': question})
>>>
>>> def results(request, question_id):
>>> question = get_object_or_404(Question, pk = question_id)
>>> return render(request, 'polls/results.html', {'guestion': 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):
>>> return render(request, 'polls/detail.html', {
>>> 'question': p,
>>> 'error_message': "Nijesi izabrao pitanje.",
>>> })
>>> else:
>>> selected_choice.votes += 1
>>> selected_choice.save()
>>> return HttpResponseRedirect(reverse('polls:results', args=(p.id
,)))
>>
>>
>>
>>
>>
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