Import Choice in this file.
2014-10-28 13:06 GMT-06:00 otmeek <[email protected]>: > I am trying to follow part 4 of the polls app tutorial. I am new to Django > and not very experienced with Python or programming in general. > > My problem is throwing an error message when "Vote" is pressed without a > choice being selected. > > polls/views.py: > from django.shortcuts import render, get_object_or_404 > from django.http import HttpResponse, HttpResponseRedirect > from django.template import RequestContext, loader > from django.core.urlresolvers import reverse > > from polls.models import Question > > 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): > question = get_object_or_404(Question, pk=question_id) > 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', {'question': 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 > ,))) > > It is my understanding that when request.POST doesn't get a choice ID, it > executes 'except', displaying the voting page again (detail.html) and an > error message. However it simply displays "NameError global name 'Choice' > is not defined" page. > > Can someone help me figure out what I'm doing wrong? > > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/0bf39ec4-709e-4ad8-85df-3a2aeb31c83d%40googlegroups.com > <https://groups.google.com/d/msgid/django-users/0bf39ec4-709e-4ad8-85df-3a2aeb31c83d%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Charly Román Software Developer http://croman.mx -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CABeWMUbkMxeu3rS5TJTUCAc3rn1-7CUsAd4MtozdmVGFiKtpsA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
