Question

我有以下观点

class ProductUpdateView(BaseProductUpdateView):
    form_class = ProductForm
    slug_field = "id"

    def form_valid(self, form):
        form.instance.hotel = form.cleaned_data["hotel"]
        form.instance.parent = form.cleaned_data["parent"]
        return super(ProductUpdateView, self).form_valid(form)

以下表格：

class ProductForm(BaseProductForm):
    hotel = forms.ModelChoiceField(queryset=Hotel.objects.all(), widget=forms.TextInput)
    parent = forms.ModelChoiceField(queryset=Product.objects.all(), widget=forms.TextInput, required=False)


    class Meta:
        model = Product
        exclude = ('slug', 'parent', 'hotel', 'status', 'score', 'product_class',
                   'recommended_products', 'related_products',
                   'product_options', 'attributes', 'categories')

保存表单时，表单已成功保存。我可以在admin中看到hotel和parent的保存值，但是当我重新打开更新表单页面时，其他字段会返回，但是hotel和parent字段返回空白。有任何想法吗？

Answer 1

我像下面那样处理它

views.py

class ProductUpdateView(BaseProductUpdateView):
    form_class = ProductForm
    slug_field = "id"

    def get_form_kwargs(self, **kwargs):
        kwargs = super(ProductUpdateView, self).get_form_kwargs(**kwargs)
        kwargs['initial']['hotel'] = self.get_object().hotel.id if \
            self.get_object().hotel else None
        kwargs['initial']['parent'] = self.get_object().parent.id if \
            self.get_object().parent else None
        return kwargs

    def form_valid(self, form):
        form.instance.hotel = form.cleaned_data["hotel"]
        form.instance.parent = form.cleaned_data["parent"]
        return super(ProductUpdateView, self).form_valid(form)

forms.py

class AutoCompleteModelChoiceField(forms.ModelChoiceField):
    widget = forms.TextInput

    def clean(self, value):
        value = super(AutoCompleteModelChoiceField, self).clean(value)
        return value


class ProductForm(BaseProductForm):
    hotel = AutoCompleteModelChoiceField(queryset=Hotel.objects.all())
    parent = AutoCompleteModelChoiceField(queryset=Product.objects.all(),
                                          required=False)

Django更新表单字段返回为空白

1 个答案: