Hello, I am trying to implement a not null constraint for 2 fields... Both field can't be filled at the same time... But at least one field should be filled.
It because of a not normalized design where there is a 2 FK are pointing on differents tables. I found this to be interresting : http://groups.google.com/group/web2py/browse_thread/thread/6eb0a3ab92e3795c Maybe someone of you could be aware of a something more clause of my need. Thanks. Richard

