| """Base classes for storage engines""" | |
| from oslo_config import cfg | |
| from oslo_db import api as db_api | |
| _BACKEND_MAPPING = {"sqlalchemy": "staffeln.db.sqlalchemy.api"} | |
| IMPL = db_api.DBAPI.from_config(cfg.CONF, backend_mapping=_BACKEND_MAPPING, lazy=True) | |
| def get_instance(): | |
| """Return a DB API instance.""" | |
| return IMPL |