btw, i modified the code that you give before into : models/db_wizard_4_registration.py
if auth.user: roles = [x.role for x in db((db.registration.doctor == db.auth_membership.user_id) & (db.auth_membership.group_id == db.auth_group.id)).select(db.auth_group.role)] db.registration.doctor.requires = IS_IN_DB(db(roles == 'Doctor'), db.auth_user.id, '%(first_name)s %(last_name)s') #db.registration.doctor.requires = IS_IN_DB(db(roles == 3), db.auth_user.id, '%(first_name)s %(last_name)s') no error occured, just select all user in auth_user table. my expected result is just show all user that have role Doctor. best regards. stifan -- 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/groups/opt_out.

