基于类的视图扩展UpdateView无法正确保存表单

Question

我试图在Django 1.3中使用UpdateView保存表单,似乎遇到了问题.当我保存表单时,它POST到当前URL并且成功url是相同的url.

保存表单时,数据似乎已更改,因为页面上的所有字段都已更新,但是当我刷新时,所有内容似乎都会恢复.

表单是一个模型表单,这是我的观点:

class UserProfileView(UpdateView):
    context_object_name = 'profile'

    def get_template_names(self):
        return ['webapp/user_profile.html']

    def get_queryset(self):
        pk = self.kwargs.get('pk', None)

        if pk is not None:
            user = User.objects.get(pk=pk)
        else:
            raise AttributeError(u"Could not locate user with pk %s"
                             % pk)

        if user.contributor_profile.all():
            queryset = Contributor.objects.filter(user__pk=pk)
        else:
            queryset = Member.objects.filter(user__pk=pk)

        return queryset

    def get_object(self, queryset=None):
        if queryset is None:
            queryset = self.get_queryset()

        return queryset.get()

我看不出会出现什么问题,因为Django通过UpdateView类保存表单,并且它扩展了Mixin.有没有人遇到过这个问题？

Answer 1

找出解决方案.问题出现了,因为没有报告的形式有错误.这似乎发生在需要以某种方式设置的隐藏字段以使表单有效.

解决方案非常简单.您只需要覆盖任何隐藏字段的post函数和帐户:

def post(self, request, *args, **kwargs):
    pk = self.kwargs.get('pk', None)

    if pk is not None:
        user = User.objects.get(pk=pk)
    else:
        raise AttributeError(u"Could not locate user with pk %s"
                             % pk)

    if user.contributor_profile.all():
        contributor = Contributor.objects.get(user=user)
        form = ContributorForm(request.POST, instance=contributor)
    else:
        member = Member.objects.get(user=user)
        form = MemberForm(request.POST, instance=member)

    if form.is_valid():
        self.object = form.save()
        return HttpResponseRedirect(self.get_success_url())
    else:
        return self.render_to_response(self.get_context_data(form=form))