You don't, it doesn't work that way. You can map the aggregate as a (SA) property of another class, or make it a (Python) property/function of the Expense class. Either way you'll have to create a select object, either for the mapping or a manual query.
On 2/27/07, Pradeep <[EMAIL PROTECTED]> wrote: > > I have a expenses table with a amount field. I have mapped that table > to a Expense entity object. > How do I sum up all the amounts using my entity object.? > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
