def purge_expired(self, maxdate=None):
'''Purge expired clients from the database'''
if maxdate:
if not isinstance(maxdate, datetime.datetime):
raise TypeError("maxdate is not a DateTime object")
self.log.debug("Filtering by maxdate: %s" % maxdate)
clients = Client.objects.filter(expiration__lt=maxdate)
else:
clients = Client.objects.filter(expiration__isnull=False)
for client in clients:
self.log.debug("Purging client %s" % client)
Interaction.objects.filter(client=client).delete()
client.delete()
self.log.debug("Pruning orphan Performance objects")
Performance.prune_orphans()
def purge(self, client=None, maxdate=None, state=None):
'''Purge historical data from the database'''
filtered = False # indicates whether or not a client should be deleted
if not client and not maxdate and not state:
self.errExit("Reports.prune: Refusing to prune all data")
ipurge = Interaction.objects
if client:
try:
cobj = Client.objects.get(name=client)
ipurge = ipurge.filter(client=cobj)
except Client.DoesNotExist:
self.log.error("Client %s not in database" % client)
raise SystemExit(-1)
self.log.debug("Filtering by client: %s" % client)
if maxdate:
filtered = True
if not isinstance(maxdate, datetime.datetime):
raise TypeError("maxdate is not a DateTime object")
self.log.debug("Filtering by maxdate: %s" % maxdate)
ipurge = ipurge.filter(timestamp__lt=maxdate)
if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
grp_limit = 100
else:
grp_limit = 1000
if state:
filtered = True
if state not in ('dirty', 'clean', 'modified'):
raise TypeError("state is not one of the following values " + \
"('dirty','clean','modified')")
self.log.debug("Filtering by state: %s" % state)
ipurge = ipurge.filter(state=state)
count = ipurge.count()
rnum = 0
try:
while rnum < count:
grp = list(ipurge[:grp_limit].values("id"))
# just in case...
if not grp:
break
Interaction.objects.filter(id__in=[x['id'] for x in grp]).delete()
rnum += len(grp)
self.log.debug("Deleted %s of %s" % (rnum, count))
except:
self.log.error("Failed to remove interactions")
(a, b, c) = sys.exc_info()
msg = traceback.format_exception(a, b, c, limit=2)[-1][:-1]
del a, b, c
self.log.error(msg)
# bulk operations bypass the Interaction.delete method
self.log.debug("Pruning orphan Performance objects")
Performance.prune_orphans()
self.log.debug("Pruning orphan Reason objects")
Reason.prune_orphans()
if client and not filtered:
'''Delete the client, ping data is automatic'''
try:
self.log.debug("Purging client %s" % client)
cobj.delete()
except:
self.log.error("Failed to delete client %s" % client)
(a, b, c) = sys.exc_info()
msg = traceback.format_exception(a, b, c, limit=2)[-1][:-1]
del a, b, c
self.log.error(msg)
