Django 2 在 forms.py 中手动保存 models.FileField

Question

我的代码是：

models.py

class Claimmessage(models.Model):
    text = models.TextField(_('Сообщение'),)


class Claimfile(models.Model):
    claimmessage = models.ForeignKey(Claimmessage, on_delete=models.CASCADE, verbose_name=_('Сообщение рекламации'), )
    attachment = models.FileField(upload_to='claims/%Y/%m/%d/', blank=True, null=True,)

forms.py

class ClaimCreateForm( forms.Form ):
    message = forms.CharField(widget=forms.Textarea,)
    attachments = forms.FileField(widget=forms.ClearableFileInput(attrs={'multiple': True}))

    def save(self, commit=False):
        message = self.cleaned_data.get("message")
        attachments = self.cleaned_data.get("attachments")

        mess = Claimmessage()
        mess.text = message
        mess.save()

        for f in attachments:
            Claimfile.objects.create(claimmessage=message, attachment=f)

views.py

if request.method == 'POST':
        form = ClaimCreateForm(request.POST, request.FILES,)
        if form.is_valid():
            obj = form.save()

            return redirect('claim_details', claim_id=obj.pk)
    else:
        form = ClaimCreateForm()

我有

/ru/claims/400002013/create/'bytes' 对象的 AttributeError 没有 属性“_committed”

如何在 form.save() 方法中保存文件对象？

Answer 1

替换这段代码

for f in attachments:
    Claimfile.objects.create(claimmessage=message, attachment=f)

以下

for f in attachments:
    claimfile = Claimfile(claimmessage=mess)
    claimfile.attachment.save(f.name, f, save=True)

查看说明here