def get_policy_association(self, endpoint_id=None,
service_id=None, region_id=None):
sql_constraints = sqlalchemy.and_(
PolicyAssociation.endpoint_id == endpoint_id,
PolicyAssociation.service_id == service_id,
PolicyAssociation.region_id == region_id)
try:
with sql.transaction() as session:
policy_id = session.query(PolicyAssociation.policy_id).filter(
sql_constraints).distinct().one()
return {'policy_id': policy_id}
except sql.NotFound:
raise exception.PolicyAssociationNotFound()
def check_policy_association(self, policy_id, endpoint_id=None,
service_id=None, region_id=None):
sql_constraints = sqlalchemy.and_(
PolicyAssociation.policy_id == policy_id,
PolicyAssociation.endpoint_id == endpoint_id,
PolicyAssociation.service_id == service_id,
PolicyAssociation.region_id == region_id)
# NOTE(henry-nash): Getting a single value to save object
# management overhead.
with sql.transaction() as session:
if session.query(PolicyAssociation.id).filter(
sql_constraints).distinct().count() == 0:
raise exception.PolicyAssociationNotFound()