Question

所以我试图关注django docs- https://docs.djangoproject.com/en/1.11/topics/class-based-views/mixins/#using-formmixin-with-detailview

基本上我正在使用django进行stackoverflow克隆。人们可以提出问题，可以用答案回答

现在我可以使它工作，如果我提供一个链接，将他们带到一个单独的页面提交他们的答案。但那很糟糕。我希望答案表格在问题页面上

基于我来到此代码的文档

urls.py -

url(r'^view/(?P<pk>\d+)/$',views.QuestionDetail.as_view(),name='detail'),

views.py -

class QuestionDetail(View):

    def get(self, request, *args, **kwargs):
        view = QuestionDisplay.as_view()
        return view(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        view = Answer.as_view()
        return view(request, *args, **kwargs)

（我相信）应该为一个帖子请求呈现一个视图，为获取请求呈现另一个视图

class QuestionDisplay(generic.DetailView):
  model = Question
  template_name = 'questions/question_detail.html'

  def get_context_data(self, **kwargs):
      context = super(QuestionDisplay, self).get_context_data(**kwargs)
      context['form'] = AnswerForm()
      return context

^这部分工作正常

class Answer(SingleObjectMixin, FormView):
    template_name = 'questions/question_detail.html'
    form_class = AnswerForm
    model = Answer

    def post(self, request, *args, **kwargs):
        if not request.user.is_authenticated:
            return HttpResponseForbidden()
        self.object = self.get_object()
        return super(Answer, self).post(request, *args, **kwargs)

    def get_success_url(self):
        return reverse('questions:detail', kwargs={'pk': self.object.pk})

^问题（我认为）当我尝试在页面上提供的表单中提交答案时，我得到404页面找不到错误。具体

找不到页面（404）请求方法：POST 请求网址：http://127.0.0.1:8000/questions/view/8/ 提出者：questions.views.QuestionDetail

编辑使其有效 -

class QuestionDetail(View):

    def get(self, request, *args, **kwargs):
        view = QuestionDisplay.as_view()
        return view(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        pk = kwargs['pk']
        view = add_answer_to_question(request, pk)
        return redirect('questions:detail', pk=kwargs['pk'])

def add_answer_to_question(request, pk):
    question = get_object_or_404(Question, pk=pk)
    if request.method == "POST":
        form = AnswerForm(request.POST)
        if form.is_valid():
            answer = form.save(commit=False)
            answer.question = question
            answer.user_id = request.user.id
            answer.save()
            return redirect('questions:detail', pk=question.pk)
    else:
        form = AnswerForm()
    return render(request, 'answers/_answer_form.html', {'form': form})

Answer 1

如果您使用ModelForm，则可以尝试此操作，错误与方法get_success_url有关。

from django.core.urlresolvers import reverse_lazy

def get_success_url(self):
    return reverse_lazy('questions:detail', kwargs={'pk': self.instance.pk})

，您必须在urls.py中设置app_name='questions'。

django-与mixins有关

1 个答案: