Question

如果调查已完成或用户已通过此调查，那么我想关闭用户对调查页面的访问。我该怎么办？

我的模型。py

class Survey(models.Model):

    title = models.CharField(max_length=1024)
    start_date = models.DateTimeField(null=True, blank=True)
    end_date = models.DateTimeField(null=True, blank=True)
    description = models.CharField(max_length=1024, null=False, blank=True)


class Ballot(models.Model):
    ip = models.GenericIPAddressField(default='127.0.0.1')
    survey = models.ForeignKey('Survey', models.CASCADE, null=True)

我的views.py

from django.utils.timezone import now

class SurveyView(View):

    def get(self, request, id):
        survey = get_object_or_404(Survey, id=id)
        if survey.end_date.date() < now().date():
            return redirect('index')
        respond = Ballot.objects.filter(survey_id=id)
        x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
        if x_forwarded_for:
            ipc = x_forwarded_for.split(',')[-1].strip()
        else:
            ipc = request.META.get('REMOTE_ADDR')
        for ip in respond:
            if ip == ipc:
             return redirect('index')
        else:
            return render(request, 'polls/survey.html', {'survey': Survey.objects.get(id=id)})

在我的代码中，我得到错误：none类型对象没有属性日期；而且，如果我删除了日期条件，那么ip条件什么也没做。

关闭用户对页面的访问

0 个答案: