> Your TaskExtension class doesn't have a translate_row method, which > apparently is part of the MapperExtension interface (although it doesn't > appear in the docs). From the source code (in orm/mapper.py): > > def translate_row(self, mapper, context, row): > """Perform pre-processing on the given result row and return a > new row instance. > > This is called as the very first step in the ``_instance()`` > method. > """ > > return EXT_PASS > > You could make life much easier for yourself by making TaskExtension > inherit from MapperExtension. In that way you would only need to > implement the methods that you actually want to override, and you won't > have to update your extension class every time new extension methods are > added. > > Hope that helps, > > Simon
>> class TaskExtension(object): > MapperExtensions need to subclass the MapperExtension class: > class TaskExtension(MapperExtension): Thanks a lot Simon, Michael! I did not read the documentation properly and had missed the inheritence. It indeed makes life a lot simpler. thanks Sanjay --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
