flask 多線程 使用資料庫報錯 No application fou

def sqlalchemy_context():
    def add_context(func):
        @wraps(func)
        def do_job(*args, **kwargs):
            # app.app_context().push()
            from app import app
            with app.app_context():
                result = func(*args,**kwargs)
                return result
        return do_job
    return add_context      

@sqlalchemy_context()
def go():      

    pass