Change IS_IN_DB to requires = IS_EMPTY_OR(IS_IN_DB( db(db.query.....)))
Then you should not get the error for an empty field See http://web2py.com/books/default/chapter/29/07/forms-and-validators about 3/4 the way down the page -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
