search for: otherfields1

...ugh with the prologue; here is the story: I have two tables joined with a has_and_belongs_to_many relashinship - - users and groups ( and groups_users, accordingly). in my view index.rhtml i have a list of users that each are associated to a couple of groups (say: user1: email1, username1, otherfields1, + g1 g2 g4 user2: email2, username2, otherfields2, + g1 g2 g4 g5 user3: email3, username3, otherfields3, + g1 g3 g4 etc... my need is to implement a searchbar that will look through all the users associated with the groups that were chosen, along with the query that was inputted in the search...