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from datetime import timedelta
from django.db import models
from django.db.models import Q
from django.utils import timezone
from .app_settings import app_settings
class BaseInvitationManager(models.Manager):
def all_expired(self):
return self.filter(self.expired_q())
def all_valid(self):
return self.exclude(self.expired_q())
def expired_q(self):
sent_threshold = timezone.now() - timedelta(days=app_settings.INVITATION_EXPIRY)
q = Q(accepted=True) | Q(sent__lt=sent_threshold)
return q
def delete_expired_confirmations(self):
self.all_expired().delete()
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