Parameters that you pass to the Query.filter function are eventually going to be rendered into an SQL statement, so your is_id_valid function probably needs to return something built from SQLAlchemy's SQL expression language: https://docs.sqlalchemy.org/en/14/core/tutorial.html
If you can explain the sort of validation that is_id_valid needs to do, we might be able to help more. Simon On Wed, Apr 28, 2021 at 6:33 AM Gyanaranjan Nayak <gngy...@gmail.com> wrote: > > I have a function with name is_id_valid(id) which returns either True or > False. > > I want to pass this function inside a sqlalchemy query inside the filter > condition. > My query example is : > > a = session.query(GeneralBeqReq).filter(GeneralBeqReq.c.BeqReqStatus == 1, > is_id_valid (GeneralBeqReq.c.id) == True).all() > > When I run the above query It is throwing the following error. > > AttributeError: Neither 'Column' object nor 'Comparator' object has an > attribute 'strip' > > > Can you please guide me how to use this function inside my query ? > > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/f388cfb8-0b0d-4ab3-8e26-84c4eb91b4a9n%40googlegroups.com. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/CAFHwexctFbqaWWaSFG7QZ8kkX-Fr7N71NtBfb4FXYv8nkjfPwQ%40mail.gmail.com.
