在django中使用图像字段进行表单编辑时，__init __（）在django中获得了意外的关键字参数'instance'

Question

表格

class edit_product_data_check(forms.Form):

    class Meta:
        model = product_data
        fields = '_all_'

views.py

def update_product_data(request):
    if request.method == "POST":
    # Get the posted form
        p_id=request.POST.get("product_id", "")

      product_edit = get_object_or_404(product_data, id=p_id)
      form = edit_product_data_check(request.POST, request.FILES, instance=product_edit)
      if form.is_valid():
          form.save()
          HttpResponseRedirect(reverse('index'))
    return HttpResponseRedirect(reverse('product'))`

Answer 1

您应该将ModelForm子类ModelForm时，将ModelForm Form子类ModelForm ：

class EditProductDataCheckForm(forms.ModelForm):
    ...