Hi, I am trying to delete an Account that delete in cascade others objects,
but I have a post_delete in Car model that create a Log that have relation
with this Account.
The django apparently can not handle the error. How to solve this?
Models:
class Account(models.Model):
pass
class Car(models.Model):
account = models.ForeignKey('Account', on_delete=models.CASCADE)
class Log(models.Model):
account = models.ForeignKey('Account', on_delete=models.CASCADE)
class CarLog(Log):
car = models.ForeignKey('Car', null=True, blank=True,
on_delete=models.SET_NULL)
@receiver(post_delete, sender=Car):
def create_car_log(sender, instance, **kwargs):
try:
CarLog.objects.create(
account=instance.account,
)
except:
pass
Shell:
>>> account = Account.objects.create()
>>> car = Car.objects.create(account=account)
>>> CarLog.objects.create(account=account, car=car)
>>> account.delete() # when delete car will try to create a log related
with that account, but...
Error:
insert or update on table "myapp_log" violates foreign key constraint
"myapp_log_account_id_6ea8d7a6_fk_myapp_account_id"
DETAIL: Key (account_id)=(11) is not present in table "myapp_account".
It's happening this error rather than the exception.
--
You received this message because you are subscribed to the Google Groups
"Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/django-users.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-users/30775c1b-e7e8-439d-9a6e-7cef8667c6ab%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
