This works perfectly, stifan, thank you very much.
On Thursday, March 5, 2015 at 12:09:10 AM UTC-5, 黄祥 wrote:
>
> perhaps you can achieve it with query on IS_IN_DB validator:
> e.g.
> query_sessions = (
> (db.auth_user.id == db.auth_membership.user_id) &
> (db.auth_membership.group_id == db.auth_group.id) &
> (db.auth_group.role.like('coach'))
> )
>
> db.sessions.coach.requires = IS_IN_DB(db(query_sessions), db.auth_user.id,
> '%(first_name)s %(last_name)s')
>
> best regards,
> stifan
>
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