Can I remove a set of ManyToMany objects using SafeDeleteModel? - django

Question

Soft_delete_cascade was applied to the entire model using the django-safedelete library.
However, if you remove the corresponding many to many object as in the code below, it is not deleted from the set of objects.
What should I do?
# models.py
from django.db import models
from safedelete import SOFT_DELETE_CASCADE, HARD_DELETE
from safedelete.models import SafeDeleteModel
class Post(SafeDeleteModel):
_safedelete_policy: int = SOFT_DELETE_CASCADE
category = models.CharField("카테고리", max_length=100, null=True, blank=True)
title = models.CharField("제목", max_length=300, null=True, blank=True)
created_at = models.DateTimeField("생성일시", auto_now_add=True)
updated_at = models.DateTimeField("수정시간", auto_now=True)
tags = models.ManyToManyField("Tag", through="TagPostAssociation", related_name="posts")
def __str__(self):
return f"글(ID:{self.id}/제목:{self.title})"
class Tag(SafeDeleteModel):
_safedelete_policy: int = SOFT_DELETE_CASCADE
value = models.CharField("태그 값", max_length=100)
created_at = models.DateTimeField("생성일시", auto_now_add=True)
updated_at = models.DateTimeField("수정시간", auto_now=True)
class Meta:
verbose_name = verbose_name_plural = "태그"
def __str__(self):
return f"태그(ID:{self.id}/값:{self.value})"
class TagPostAssociation(SafeDeleteModel):
_safedelete_policy: int = HARD_DELETE
tag = models.ForeignKey(to=Tag, verbose_name="태그", on_delete=models.CASCADE)
post = models.ForeignKey(to=Post, verbose_name="글", on_delete=models.CASCADE)
created_at = models.DateTimeField("생성일시", auto_now_add=True)
updated_at = models.DateTimeField("수정시간", auto_now=True)
class Meta:
verbose_name = verbose_name_plural = "글-태그"
def __str__(self):
return f"글{self.post.id})-태그({self.tag.id})"
>>> post = Post.objects.get(id=2)
>>> tag = Tag.objects.get(id=2)
>>> post.tags.all()
<SafeDeleteQueryset [<Tag: 태그(ID:2/값:hair)>, <Tag: 태그(ID:1/값:test)>]>
>>> post.tags.remove(tag)
>>> post.tags.all()
<SafeDeleteQueryset [<Tag: 태그(ID:2/값:hair)>, <Tag: 태그(ID:1/값:test)>]>
I tried to delete the many to many object using the m2m_changed signal, but it didn't work.