sqlalchemy_base.py 文件源码

def id(cls):
        tablename_compact = cls.__tablename__
        if tablename_compact.endswith("_history"):
            tablename_compact = tablename_compact[:-6]
        return sqlalchemy.Column(
            sqlalchemy_utils.UUIDType(),
            sqlalchemy.ForeignKey(
                'resource.id',
                ondelete="CASCADE",
                name="fk_%s_id_resource_id" % tablename_compact,
                # NOTE(sileht): We use to ensure that postgresql
                # does not use AccessExclusiveLock on destination table
                use_alter=True),
            primary_key=True
        )