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36 lines
1.2 KiB
36 lines
1.2 KiB
from django.db.models import F
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from django.contrib.auth.models import User
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from django.core.management.base import BaseCommand
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from hc.accounts.models import Profile
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from hc.api.models import Check, Ping
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class Command(BaseCommand):
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help = """Prune pings based on limits in user profiles.
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This command prunes each check individually. So it does the work
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in small chunks instead of a few big SQL queries like the `prunepings`
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command. It is appropriate for initial pruning of the potentially
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huge api_ping table.
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"""
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def handle(self, *args, **options):
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# Create any missing user profiles
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for user in User.objects.filter(profile=None):
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Profile.objects.get_or_create(user_id=user.id)
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checks = Check.objects
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checks = checks.annotate(limit=F("user__profile__ping_log_limit"))
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for check in checks:
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q = Ping.objects.filter(owner_id=check.id)
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q = q.filter(n__lt=check.n_pings - check.limit)
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q = q.filter(n__gt=0)
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n_pruned, _ = q.delete()
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self.stdout.write(
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"Pruned %d pings for check %s (%s)" % (n_pruned, check.id, check.name)
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)
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return "Done!"
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