Hi there, I have an old system that I'm porting over to SA. In the old system there is one entity that keeps a change history of itself. In the code that performs db updates, the current state of the object is examined and before it is updated I insert rows to a table with colums like this:
object id change-event-id fieldname old-value new-value This is used to render a change history of the entity to the user. Now, can I automate this somehow with SA? Preferably I'd like to do this automatically on object update. Can I use the "dirty" set in the session to find out what columns of the mapped table have changed? How do I hook into the update action - I think I need a mapper extension, but can you point me to some examples? Has anyone done something similar (the whole changelog thing) with SA? Arnar --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
