Hi Dmitry. You don't need to call the Base constructor, it's just a convenience feature: http://www.sqlalchemy.org/docs/orm/extensions/declarative.html#class-constructor
For doing stuff on delete, check out the ORM event API, specifically the before_delete and after_delete events: http://www.sqlalchemy.org/docs/orm/interfaces.html#sqlalchemy.orm.interfaces.MapperExtension.before_delete http://www.sqlalchemy.org/docs/orm/interfaces.html#sqlalchemy.orm.interfaces.MapperExtension.after_delete Regards, - Gulli -- 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 sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
