

def get_new_router_ids(self, context):
    existing_router_ids = self.initial['router_ids']
    add_router_ids = context['router_ids']
    return (add_router_ids + existing_router_ids)

dataset/ETHPy150Open openstack/horizon/openstack_dashboard/dashboards/project/firewalls/forms.py AddRouterToFirewall.get_new_router_ids/original