forked from CGM_Public/pretix_original
33 lines
881 B
Python
33 lines
881 B
Python
from django.db import models
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from django.db.models import F, Max, OuterRef, Q, Subquery
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from django.dispatch import receiver
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from pretix.base.models import LogEntry, Quota
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from pretix.celery_app import app
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from ..signals import periodic_task
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@receiver(signal=periodic_task)
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def build_all_quota_caches(sender, **kwargs):
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refresh_quota_caches.apply_async()
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@app.task
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def refresh_quota_caches():
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last_activity = LogEntry.objects.filter(
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event=OuterRef('event_id'),
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).order_by().values('event').annotate(
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m=Max('datetime')
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).values(
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'm'
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)
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quotas = Quota.objects.annotate(
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last_activity=Subquery(last_activity, output_field=models.DateTimeField())
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).filter(
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Q(cached_availability_time__isnull=True) |
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Q(cached_availability_time__lt=F('last_activity'))
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)
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for q in quotas:
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q.availability()
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