- Deleted.objects.create(type=sender, object_id=instance.id,
- created_at=instance.created_at, category=category)
+ content_type = ContentType.objects.get_for_model(sender)
+ Deleted.objects.create(content_type=content_type, object_id=instance.id,
+ created_at=instance.created_at, category=category, slug=instance.slug)