Hi, So I (think I) understand that that polymorphic_on and polymorphic_identity can be used to determine which class is instantiated for a query result row. Is there any way I can use a range of values for polymorphic_identity to map to the same class ? Of specific interest to me right now are date ranges and single-table inheritance.
e.g. I have two classes: Employee and CurrentEmployee. Both are mapped to the same table, employee, but Employee.query() should return every record in the table and CurrentEmployee() should return the same subset as Employee.query(Employee.start_date >= today), for example. It really is just a convenience thing so not a show stopper but would be nice to know if this kind of thing is straightforwardly possible. -- t o b e -- A truly clever developer will create code so easy to understand that a less than average developer could debug it. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
