def get_group(self, uuid):
session = db.get_session()
try:
q = session.query(models.HashMapGroup)
q = q.filter(models.HashMapGroup.group_id == uuid)
res = q.one()
return res
except sqlalchemy.orm.exc.NoResultFound:
raise api.NoSuchGroup(uuid=uuid)
def get_group(self, uuid=None, name=None):
session = db.get_session()
try:
q = session.query(models.HashMapGroup)
if uuid:
q = q.filter(models.HashMapGroup.group_id == uuid)
if name:
q = q.filter(models.HashMapGroup.name == name)
res = q.one()
return res
except sqlalchemy.orm.exc.NoResultFound:
raise api.NoSuchGroup(name, uuid)
def delete_group(self, uuid, recurse=True):
session = db.get_session()
q = utils.model_query(models.HashMapGroup, session)
q = q.filter(models.HashMapGroup.group_id == uuid)
with session.begin():
try:
r = q.with_lockmode('update').one()
except sqlalchemy.orm.exc.NoResultFound:
raise api.NoSuchGroup(uuid=uuid)
if recurse:
for mapping in r.mappings:
session.delete(mapping)
for threshold in r.thresholds:
session.delete(threshold)
q.delete()