from django.core.management.base import BaseCommand
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from django.db.models import Min
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from hc.api.models import Notification, Check
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class Command(BaseCommand):
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help = 'Prune stored notifications'
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def handle(self, *args, **options):
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total = 0
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q = Check.objects.filter(n_pings__gt=0)
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q = q.annotate(min_ping_date=Min("ping__created"))
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for check in q:
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qq = Notification.objects.filter(owner_id=check.id,
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created__lt=check.min_ping_date)
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num_deleted, _ = qq.delete()
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total += num_deleted
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return "Done! Pruned %d notifications." % total
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