def destroy_volume_target(self, ident):
with _session_for_write():
query = model_query(models.VolumeTarget)
query = add_identity_filter(query, ident)
count = query.delete()
if count == 0:
raise exception.VolumeTargetNotFound(target=ident)
def update_volume_target(self, ident, target_info):
if 'uuid' in target_info:
msg = _("Cannot overwrite UUID for an existing Volume Target.")
raise exception.InvalidParameterValue(err=msg)
try:
with _session_for_write() as session:
query = model_query(models.VolumeTarget)
query = add_identity_filter(query, ident)
ref = query.one()
orig_boot_index = ref['boot_index']
ref.update(target_info)
session.flush()
except db_exc.DBDuplicateEntry:
raise exception.VolumeTargetBootIndexAlreadyExists(
boot_index=target_info.get('boot_index', orig_boot_index))
except NoResultFound:
raise exception.VolumeTargetNotFound(target=ident)
return ref
def get_volume_target_by_uuid(self, uuid):
query = model_query(models.VolumeTarget).filter_by(uuid=uuid)
try:
return query.one()
except NoResultFound:
raise exception.VolumeTargetNotFound(target=uuid)
