On May 23, 10:39 pm, Larry Martell <larry.mart...@gmail.com> wrote: > I was asked to make a mod to a large django app that I didn't write. > They wanted me to add a derived field to a query, e.g. select > col1-col2 from table ...
I assume you're talking about using queryset.extra ? > I did that and it works, but in some other part of the code it calls > getattr(object, field) and when field == col1-col2 it blows up > with"object has no attribute 'col1-col2'" Are you sure the instance on which it failed was retrieved using the appropriate query ? Can you post the relevant parts of your code ? (here or via dpaste ?) -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
