Question

我有一个表单集，可以将其渲染为模板，并且在提交模板时会在数据库中对其进行更新。但是，页面只是刷新，我似乎无法将其转到另一页。我将表单集保存在formset.is_valid()内部的get_context_data部分中。我创建了一个def get_success_url(self):，但是即使成功也没有发生。我在HTML页面中使用{% for erro in form.errors %}，告诉我没有收到错误。加上它正在保存到数据库！但是问题仍然存在：

点击“提交”后如何将其还原到新页面？

html

<form method="post">
    {% csrf_token %}
    ...
    <button type="submit" class="btn btn-primary">Submit</button>
</form>

views.py

class LibraryUpdateView(LoginRequiredMixin, UpdateView):
    model      = Book
    form_class = BookForm
    template_name = 'library/library_update.html'

def get_context_data(self, *args, **kwargs):
    context = super(LibraryUpdateView, self).get_context_data(*args, **kwargs)
    print(self.object)
    print('hi')
    qs = Library.objects.filter(
                 library_id = self.kwargs.get('library_id')
            ) 
    if self.request.POST:
        context['getperinfo_form'] = BookFormSet(self.request.POST,instance=qs.first())
        formset = BookFormSet(self.request.POST,instance=qs.first())
        ############ THIS DOES HAPPEN ################
        if formset.is_valid():
            print('we valid?')
            formset.save()
        else:
            print('we not valid')
            messages.api.add_message(self.request, messages.ERROR, "Something is wrong!!!")
    else: 
        qs = Library.objects.filter(
                 library_id = self.kwargs.get('library_id')
            ) 
        context['getperinfo_form'] = BookInfoFormSet(instance=qs.first())
        context['hi']=3
    return context

def form_valid(self, form):
    ##### THIS SECTION NEVER HAPPENS #####
    print('checking form valid')
    context = self.get_context_data()
    getperinfo_form = context['getperinfo_form']
    with transaction.atomic():
        self.object = form.save()

        if getperinfo_form.is_valid():
            getperinfo_form.instance = self.object
            getperinfo_form.save()
    return super(LibraryUpdateView, self).form_valid(form)

def get_object(self):
    #qs = Contracts.objects.filter(pk=self.request.user).first()
    qs = Library.objects.filter(
                library_id = self.kwargs.get('library_id')
            )

    if qs.count() == 1:
        if self.request.user == qs.first().contract_id.skilledlaborer.user or self.request.user == qs.first().contract_id.inhouselandmanager.user:
            pass
            qs2 = BookInfo.objects.filter(
                library_id__library_id = self.kwargs.get('library_id')
                )
        else:
            raise PermissionDenied 
        return qs2.first()
    raise Http404

def get_success_url(self):
    ####### THIS NEVER HAPPENS ############
    print('about to reverse')
    return reverse("library:create-list")

Django：表单集未保存

0 个答案: