Question

我对我的表单有这个观点：

if request.method == 'POST':
    vehicle = VehicleForm(request.POST or None)
    photos = PhotosFormSet(request.POST or None)
    if vehicle.is_valid() and photos.is_valid():
        new = vehicle.save()
        photos = PhotosFormSet(request.POST, instance=new)
        photos.save()
        return HttpResponseRedirect('/vehicles/')
else:
    prefix = "09-"
    queryset = Vehicle.objects.all().order_by("stock_number")
    if queryset == None:
        last_rec = queryset.reverse()[0]
        a = str(last_rec.stock_number)
        b = int(a[-3:])+1
        next = prefix+str(b)
    else:
        next = prefix+"001"
    vehicle = VehicleForm(initial={'stock_number': next})
    photos = PhotosFormSet(instance=Vehicle())

但是，当我尝试保存记录时，PhotosFormset中的图片字段会显示错误This field is required.

PhotosFormset被声明为PhotosFormSet = generic_inlineformset_factory(Photo, extra=5)

我在这里缺少什么？

Answer 1

您似乎没有将上传的文件绑定到您的formset。您需要传入request.FILES以及request.POST：

photos = PhotosFormSet(request.POST, request.FILES, instance=new)

Django docs

中的更多信息

处理Django中的图像上传

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