在这里，您忽略了在调用get_context_data()之前必须将对象分配给类或self。

class Detail(DetailView):
    model = MyModel
    template_name = 'mymodel_detail.html'

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

    def post(self, request, *args, **kwargs):
        form = DetailForm(request.POST, request.FILES)
        if form.is_valid():
            # Write Your Logic here

            self.object = self.get_object()
            context = super(Detail, self).get_context_data(**kwargs)
            context['form'] = DetailForm
            return self.render_to_response(context=context)

        else:
            self.object = self.get_object()
            context = super(Detail, self).get_context_data(**kwargs)
            context['form'] = form
            return self.render_to_response( context=context)

在render_to_response()中，只需传递上下文。没有其他论点。
希望它能为你工作。

这就是我如何实现Safrazs answer的代码，以便在我的问题模型上创建一个回复选项。我知道这是一个老问题，但我希望有人会发现这是有用的。

class QuestionDetailView(generic.DetailView):
    model = Question
    template_name = 'forum/question.html'

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

        return context

    def post(self, request, *args, **kwargs):
        form = ReplyForm(request.POST)

        if form.is_valid():
            reply = form.save(commit=False)
            reply.creator = request.user
            reply.question = self.get_object()
            reply.save()
            self.object = self.get_object()
            context = context = super().get_context_data(**kwargs)
            context['form'] = ReplyForm

            return self.render_to_response(context=context)

        else:
            self.object = self.get_object()
            context = super().get_context_data(**kwargs)
            context['form'] = form

            return self.render_to_response(context=context)

您从错误的泛型视图继承。你需要从CreateView继承，像这样：

class CreateModel(CreateView):
  model = MyModel
  template_name = 'mymodel_detail.html'
  form_class = DetailForm
  success_url = reverse('/thanks')

  def form_valid(self, form):
     # this method is called when the form
     # is successfully validated
     # if you need to do something with
     # the database object, this is the place
     # do not use it to redirect to a success page
     # use the success_url for that
     return super(CreateModel, self).form_valid(form)

你在错误的类上调用了super：应该是Detail，而不是MessageDetail。另外，您不需要表单代码。相反，使用一个通用的编辑视图（OpenView，DeleteView，FormView，UpdateView）。DetailView实际上仅用于显示目的。有关通用视图的更多详细信息，请访问http://ccbv.co.uk/