Hi Massimo, Here is the table def i'm using for this
db.define_table('t_user_has_companies', Field('USER_ID', 'reference auth_user', label='User', writable=True, readable=True, notnull=True, required=True, ondelete='NO ACTION'), Field('COMP_ID', 'reference t_companies', label='Company', writable=True, readable=True, required=True, ondelete='NO ACTION', requires=IS_IN_DB(db, db.t_companies, '%(id)s %(f_coname)s'))) What i'm trying to do is a KEY UserID from auth_user table and CompanyID from the companies table, so they don't duplicate in the table user_has_companies. <https://lh6.googleusercontent.com/-2igroVtO_eQ/UqzF5RLkuPI/AAAAAAAAALc/S8Z70UhJxkg/s1600/Untitled-1.jpg> the grid is displaying the attached screenshot <https://lh3.googleusercontent.com/-6y3FBZzY0nU/UqzG07fv6oI/AAAAAAAAALk/-UWSs5TxmP4/s1600/Untitled-1.jpg> with this def, i can see both drop downs but i can submit the same company to the same user over and over Thanks for your help -- *This e-mail is confidential and may also be privileged. If you are not the intended **recipient, please notify the sender immediately, delete it from your system and do **not copy, disseminate, distribute or disclose any information contained therein.* -- 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 web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.