验证后我的表单未显示错误和输入值

Question

我的模型.py

class VehicleInquiry(TimeStampedModel):
    inquiry_status = models.PositiveSmallIntegerField(_("inquiry status"), choices=INQUIRY_STATUS_CHOICES, default=1)
    full_name = models.CharField(_("full name"), max_length=100)
    address = models.CharField(_("address"), max_length=200)
    ---- other fields ----

我的 Crispy form.py:

class VehicleInquiryForm(forms.ModelForm):
    --- overridden form fields ---    

class Meta:
    model = VehicleInquiry
    fields = ('full_name', 'email')


def __init__(self, request=None, stock_product=None, *args, **kwargs):
    super(VehicleInquiryForm, self).__init__(*args, **kwargs)
    self.fields['is_subscribed'].label = _("Keep me updated")
    self.helper = FormHelper()
    self.helper.template_pack = "bootstrap3"
    self.helper.form_method = "post"
    self.helper.form_id = "vehicle-shipping-form"
    self.initial['insurance'] = True
    self.helper.add_input(
        Submit('inquiry', _('Inquiry'), css_class='btn btn-default',)
    )
    self.helper.form_method = 'post'
    self.helper.layout = Layout(
        Fieldset(
        _("1. Choose Your Final Destination"),
        Div(
            Field('country2', css_class="order-select-country"),
        ),
        
            --- other fields ---                   
        )

我的 CBV view.py：

class VehicleStockDetailView(TemplateView):
    model = StockProduct
    template_name = "site/product/vehicle-detail.html"
    template_name_done = "site/contact/contact-us-done.html"
    template_name_done_email = "site/contact/emails/contact-us-done.html"
    
    def post(self, request, slug, *args, **kwargs):
        form = VehicleInquiryForm(request.POST)
        ip=""
        if form.is_valid():             
            form.save()
            return render(request, self.template_name_done, {
                'full_name': request.POST['full_name'],
                'email': request.POST['email'],
            })
    
    
        vehicle = get_object_or_404(VehicleStock, slug=slug)
        return render(request, self.template_name, {
            'product': vehicle,
            'form': form
        })
  
    def get(self, request, slug, *args, **kwargs):
        vehicle = get_object_or_404(VehicleStock, slug=slug)
        form = VehicleInquiryForm()
        return render(request, self.template_name, {
            'product': vehicle,
            'form': form
        })

表单作为 GET 加载 OK，但是当我单击 Inquiry 作为发布请求时，它既不显示错误也不显示输入的值。在我的模板中，我将表单加载为 {% crispy form %}。需要帮助。

Answer 1

您已更改表单 init 函数的签名，以便第一个位置参数是 request 和 stock_product。您应该避免这样做 - 通常我建议改用 kwargs，但在这种情况下，您应该完全删除它们，因为您在该方法中不使用这些值。

另外请注意，如果您使用 FormView，您的代码会更简单，它会为您处理几乎所有的逻辑。