26 lines
928 B
Python
26 lines
928 B
Python
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"""passbook policy signals"""
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from django.core.cache import cache
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from django.db.models.signals import post_save
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from django.dispatch import receiver
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from structlog import get_logger
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LOGGER = get_logger()
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@receiver(post_save)
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# pylint: disable=unused-argument
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def invalidate_policy_cache(sender, instance, **_):
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"""Invalidate Policy cache when policy is updated"""
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from passbook.policies.models import Policy, PolicyBinding
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from passbook.policies.process import cache_key
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if isinstance(instance, Policy):
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LOGGER.debug("Invalidating policy cache", policy=instance)
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total = 0
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for binding in PolicyBinding.objects.filter(policy=instance):
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prefix = f"policy_{binding.policy_binding_uuid.hex}_{binding.policy.pk.hex}" + "*"
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keys = cache.keys(prefix)
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total += len(keys)
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cache.delete_many(keys)
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LOGGER.debug("Deleted keys", len=total)
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