Hi! I'm trying to create a list of roles for each user:
for x in db(db.auth_user.id>0).select(db.auth_user.id): ....groups = [] ....for g in db(db.auth_membership.id > 0).select(db.auth_group.role, join=[db.auth_group.on(db.auth_group.id==db.auth_membership.group_id), db.auth_user.on(db.auth_user.id==db.auth_membership.user_id)]): ........groups.append(g.role) and the error: TypeError: reduce() of empty sequence with no initial value How to do this list? thanks, Fabiano -- 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/d/optout.
