def attribute_delete(self, context, uuid):
with _session_for_write():
query = model_query(context, models.Attribute)
query = add_identity_filter(query, uuid)
count = query.delete()
if count != 1:
raise exception.AttributeNotFound(uuid=uuid)
def attribute_get_by_deployable_id(self, context, deployable_id):
query = model_query(
context, models.Attribute).filter_by(deployable_id=deployable_id)
try:
return query.all()
except NoResultFound:
raise exception.AttributeNotFound(uuid=uuid)
def attribute_get(self, context, uuid):
query = model_query(
context,
models.Attribute).filter_by(uuid=uuid)
try:
return query.one()
except NoResultFound:
raise exception.AttributeNotFound(uuid=uuid)
def _do_update_attribute(self, context, uuid, key, value):
update_fields = {'key': key, 'value': value}
with _session_for_write():
query = model_query(context, models.Attribute)
query = add_identity_filter(query, uuid)
try:
ref = query.with_lockmode('update').one()
except NoResultFound:
raise exception.AttributeNotFound(uuid=uuid)
ref.update(update_fields)
return ref