I can see there is a bug in web2py in that respect since it assumes integer while it should be of the same type as the field being summed. I fixed it in trunk. Anyway, that is not your problem. can I see how you are using it?
On Mar 3, 1:39 pm, Philip <philip.el...@gmail.com> wrote: > I have a DAL field of type 'double'. What python data type is > row._extra[db.table.field.sum()] for that field? > > Assuming it was a python float, I tried to perform an arithmetic > operation on it, and an error came back that the type was 'NoneType' > so the operation could not be performed. I can't tell if this is an > error on my part. > > Thanks, > Philip -- You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to web...@googlegroups.com. To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/web2py?hl=en.