On Aug 4, 2007, at 1:07 PM, Leonid Morgun wrote:
> > I tried to use http://www.sqlalchemy.org/docs/ > adv_datamapping.html#advdatamapping_inheritance_joined > -- Joined Table Inheritance. > > And according to that example in documentation, I need to "add a new > worker": at the beginning I had a simple employee (and the record in > employees' table). Than I want to make that person an engineer (for > example) -- with a necessary record in engineers' table. > > How can I do this? changing the class of an existing persisted item is ticket #648 in trac. as a workarond now, you have two options: fully delete the old item and replace with a new one, or, issue direct SQL the database in order to make the change, then reload the new Engineer object from your Session. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to [email protected] 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 -~----------~----~----~----~------~----~------~--~---
