def destroy_volume_connector(self, ident):
with _session_for_write():
query = model_query(models.VolumeConnector)
query = add_identity_filter(query, ident)
count = query.delete()
if count == 0:
raise exception.VolumeConnectorNotFound(connector=ident)
def get_volume_connector_by_uuid(self, connector_uuid):
query = model_query(
models.VolumeConnector).filter_by(uuid=connector_uuid)
try:
return query.one()
except NoResultFound:
raise exception.VolumeConnectorNotFound(connector=connector_uuid)
def update_volume_connector(self, ident, connector_info):
if 'uuid' in connector_info:
msg = _("Cannot overwrite UUID for an existing Volume Connector.")
raise exception.InvalidParameterValue(err=msg)
try:
with _session_for_write() as session:
query = model_query(models.VolumeConnector)
query = add_identity_filter(query, ident)
ref = query.one()
orig_type = ref['type']
orig_connector_id = ref['connector_id']
ref.update(connector_info)
session.flush()
except db_exc.DBDuplicateEntry:
raise exception.VolumeConnectorTypeAndIdAlreadyExists(
type=connector_info.get('type', orig_type),
connector_id=connector_info.get('connector_id',
orig_connector_id))
except NoResultFound:
raise exception.VolumeConnectorNotFound(connector=ident)
return ref
