I am not sure I fully understand. You can do this:
id = db.sales.insert(invoice=invoice) old_invoice = db.sales[id].invoice new_invoice = old_invoice db(db.sales.id==id).update(invoice=new_invoice) Does this answer your question? On Friday, 18 January 2013 15:36:30 UTC-6, greaneym wrote: > > Hello, > > I am working on a shopping cart, using the stable version of web2py, with > an > sql lite database. > > In a checkout function, the order information is being inserted into a > sales db,(for example it has db.sales[id] == 2 > > then in a buy function, after a user enters their card information in > order to buy the item, > I want to insert an invoice number. > I haven't used dbcommit(). > > If I use db.sales.insert(invoice=invoice), this creates a new record, > db.sales[id] == 3 , with just the invoice number in it. I get an error if I > try db.sales.append(invoice=invoice). > > I see in the book that it's possible to try an update with > something like this: > db.sales[id]=dict(invoice=invoice) > > but if I try that literal example it is still creating a new record and > not updating the current session sales id record. > > How do I select the id of the current user's record and then use this > update example as shown in the book to insert an invoice number into the > db.sales record that has been recently created? or how do I append > a update to a record? > > Do I use rollback or something else? Thanks for suggesions. > > > > Margaret > > --
