I'm trying to delete but it's happening a strange error.
models:
class Account(models.Model):
pass
class Action(models.Model):
account = models.ForeignKey('Account', on_delete=models.CASCADE)
class Log(models.Model):
account = models.ForeignKey('Account', on_delete=models.CASCADE)
class ActionLog(Log):
action = models.ForeignKey('Action', on_delete=models.SET_NULL)
shell:
account = Account.objects.create()
action = Action.objects.create(account=account)
ActionLog.objects.create(account=account, action=action)
account.delete()
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".
But:
>>> Account.objects.last().id
11
Why it happen? How solve it? Is a bug?
I am using PostgreSQL 9.3 and Django 1.9.5
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