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invalidate cache when policy is saved

This commit is contained in:
Jens Langhammer 2019-03-21 11:29:11 +01:00
parent 0bc6a4fed4
commit 29913773a7
1 changed files with 16 additions and 0 deletions
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16
passbook/core/signals.py
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@ -1,10 +1,15 @@
"""passbook core signals""" """passbook core signals"""
from logging import getLogger
from django.core.cache import cache
from django.core.signals import Signal from django.core.signals import Signal
from django.db.models.signals import post_save
from django.dispatch import receiver from django.dispatch import receiver
from passbook.core.exceptions import PasswordPolicyInvalid from passbook.core.exceptions import PasswordPolicyInvalid
LOGGER = getLogger(__name__)
user_signed_up = Signal(providing_args=['request', 'user']) user_signed_up = Signal(providing_args=['request', 'user'])
invitation_created = Signal(providing_args=['request', 'invitation']) invitation_created = Signal(providing_args=['request', 'invitation'])
invitation_used = Signal(providing_args=['request', 'invitation', 'user']) invitation_used = Signal(providing_args=['request', 'invitation', 'user'])
@ -24,3 +29,14 @@ def password_policy_checker(sender, password, **kwargs):
passing, messages = policy_engine.result passing, messages = policy_engine.result
if not passing: if not passing:
raise PasswordPolicyInvalid(*messages) raise PasswordPolicyInvalid(*messages)
@receiver(post_save)
# pylint: disable=unused-argument
def invalidate_policy_cache(sender, instance, **kwargs):
"""Invalidate Policy cache when policy is updated"""
from passbook.core.models import Policy
if isinstance(instance, Policy):
LOGGER.debug("Invalidating cache for %s", instance.pk)
keys = cache.keys("%s#*" % instance.pk)
cache.delete_many(keys)
LOGGER.debug("Deleted %d keys", len(keys))