django 信号 新增和删除信的合用

from django.db.models.signals import post_save, post_delete
from django.dispatch import receiver
from django.db import transaction
from .models import MT002HModel

@receiver(post_save, sender=MT002HModel)
@receiver(post_delete, sender=MT002HModel)
@transaction.atomic
def mt002h_save_delete(sender, instance, created, **kwargs):
    if created:
        print(f"Instance {instance} was saved.")
        # Handle post_save logic here
    else:
        print(f"Instance {instance} was deleted.")
        # Handle post_delete logic here