sg101: gpp/core/management/commands/clean_last

Fixes for #200; fix bug in deciding which forums have unread posts.

rev	line source
bgneal@362	1 """
bgneal@362	2 clean_last_visit is a custom manage.py command.
bgneal@362	3 It is intended to be called from a cron job to clean out old user and anonymous
bgneal@362	4 last visit records.
bgneal@362	5
bgneal@362	6 """
bgneal@362	7 import datetime
bgneal@362	8
bgneal@362	9 from django.core.management.base import NoArgsCommand
bgneal@362	10
bgneal@362	11 from core.models import UserLastVisit, AnonLastVisit
bgneal@362	12
bgneal@362	13 USER_LV_AGE = datetime.timedelta(weeks=4)
bgneal@362	14 ANON_LV_AGE = datetime.timedelta(days=1)
bgneal@362	15
bgneal@362	16
bgneal@362	17 class Command(NoArgsCommand):
bgneal@362	18 help = "Run periodically to clean out old last visit records."
bgneal@362	19
bgneal@362	20 def handle_noargs(self, **options):
bgneal@362	21
bgneal@362	22 now = datetime.datetime.now()
bgneal@362	23 user_cut_off = now - USER_LV_AGE
bgneal@362	24 anon_cut_off = now - ANON_LV_AGE
bgneal@362	25
bgneal@362	26 UserLastVisit.objects.filter(last_visit__lte=user_cut_off).delete()
bgneal@362	27 AnonLastVisit.objects.filter(last_visit__lte=anon_cut_off).delete()

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