or just db.table.virtualfields.add(ComputedFields())
as a lazy rows.setvirtualfields(table=ComputedFields()) it can be implemented in two lines if ok. Massimo On Oct 31, 3:04 pm, mdipierro <[email protected]> wrote: > I like it but with some caveats. In > > rows.setvirtualfields(total=ComputedFields()) > > we need to specify total to clarify the table or virtualtable the > virtualfields are attached to. > when attaching virtualfields to a table there is no need to specify > that. > > So I think it should just be: > > table.addvirtualfields(ComputeFields()) > > Implementation: > > The argument would be appended to > > table._virtualfields=[] > > and the latter would be precessed by > > Set.parse > > that for each element table._virtualfields would call > > setvirtualfields > > On Oct 31, 1:16 pm, "mr.freeze" <[email protected]> wrote: > > > Virtual fields are my new favorite thing. Currently you must call > > setvirtualfields after each select. What about adding the ability to > > setvirtualfields at the Table level so that any select will call > > setvirtualfields automatically? Pseudocode: > > > db.define_table('mytable',Field('cost'),Field('quantity')) > > class ComputedFields: > > def amount(self): > > return self.mytable.cost*self.mytable.quantity > > db.mytable.setvirtualfields(total=ComputedFields()) > > > What do you think? > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
