def db_sync(version=None): if version is not None: try: version = int(version) except ValueError: raise exception.NovaException(_("version should be an integer")) current_version = db_version() repository = _find_migrate_repo() if version is None or version > current_version: return versioning_api.upgrade(get_engine(), repository, version) else: return versioning_api.downgrade(get_engine(), repository, version)
def db_version(): repository = _find_migrate_repo() try: return versioning_api.db_version(get_engine(), repository) except versioning_exceptions.DatabaseNotControlledError: meta = sqlalchemy.MetaData() engine = get_engine() meta.reflect(bind=engine) tables = meta.tables if len(tables) == 0: db_version_control(migration.INIT_VERSION) return versioning_api.db_version(get_engine(), repository) else: # Some pre-Essex DB's may not be version controlled. # Require them to upgrade using Essex first. raise exception.NovaException( _("Upgrade DB using Essex release first."))
def unregister_models(): engine = baremetal_session.get_engine() BASE.metadata.drop_all(engine)
def db_version_control(version=None): repository = _find_migrate_repo() versioning_api.version_control(get_engine(), repository, version) return version
def register_models(): engine = baremetal_session.get_engine() BASE.metadata.create_all(engine)