如何在Django中将FileField保存为None?

问题描述：

我有带有Avatar字段的模型Profile，使用FileField.

I have model Profile with Avatar field use FileField.

class Profile(models.Model):
    avatar = models.FileField("Uploaded avatar of profile", storage=OverwriteStorage(), upload_to=avatar_photo_upload, null=True, blank=True)

我编写了删除头像的函数，该函数将头像= None

I write function to remove avatar, which set avatar = None

def remove_avatar(self, request):
        profile = Profile.objects.get(user=request.user)
        profile.avatar = None
        profile.avatar.save()
        return Response({ 'status': 'ok', 'message': 'Avatar successfully removed' }, status=status.HTTP_200_OK)

在我的数据库中，化身存储为''，而不是 null .为什么以及如何解决?

In my database, avatar stored as '', not null. Why and how can I fix it?

答

更改模型

class Profile(models.Model):
    avatar = models.FileField("Uploaded avatar of profile", storage=OverwriteStorage(), upload_to=avatar_photo_upload, null=True)

删除空白选项

如何在Django中将FileField保存为None?

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