app.py 文件源码

def load_sqla(handler):
    web.ctx.orm = scoped_session(sessionmaker(bind=engine))
    try:
        return handler()
    except web.HTTPError:
        web.ctx.orm.commit()
        raise
    except:
        web.ctx.orm.rollback()
        raise
    finally:
        web.ctx.orm.commit()