django: global name 'Choice' is not defined

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Sigurður Jónsson

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Nov 30, 2012, 3:29:16 AM11/30/12
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Sælir,
Er að reyna að útbúa einfalt html form með django. Fæ radio hnappana og get valið og fæ útkomu en þegar ég sleppi að velja útvarpshnapp og smelli á Kjósa kemur þessi villa vegna Error handlersins:

global name 'Choice' is not defined

Svona er hluti af tracebackinu:
Django Version:    1.4.1
Exception Type:    NameError
Exception Value:   
global name 'Choice' is not defined
Exception Location:    /home/siggi/Dropbox/programming/python/django/mysite/polls/views.py in vote, line 25

Er búinn að gúgla töluvert og ekkert hittir á sömu villu, getur verið syntax villa, er algjör noob.

Views.py lítur svona út:

from django.shortcuts import render, get_object_or_404
from polls.models import Poll
from django.http import HttpResponse
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse

def index(request):
    latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5]
    context = {'latest_poll_list': latest_poll_list}
    return render(request, 'polls/index.html', context)

def detail(request, poll_id):
    poll = get_object_or_404(Poll, pk=poll_id)
    return render(request, 'polls/detail.html', {'poll': poll})

def results(request, poll_id):
    poll = get_object_or_404(Poll, pk=poll_id)
    return render(request, 'polls/results.html', {'poll': poll})

def vote(request, poll_id):
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the poll voting form.
        return render(request, 'polls/detail.html', {
            'poll': 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,)))

Halldór

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Nov 30, 2012, 5:21:22 PM11/30/12
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Breyttu línunni

from polls.models import Poll

Í

from polls.models import Choice,  Poll

Það ætti að virka. Villan segir að þú sért að leita að breytu sem er ekki til.

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Sigurður Jónsson

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Nov 30, 2012, 5:26:58 PM11/30/12
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Svínvirkar, takk kærlega.
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