Hi. I''m using LoginEngine to manage session info. On this site, I''d like users to be able to create groups, and then allow other users to sign up. The approach I''m taking is putting a "join" link on the "show" page for a group, and then adding the user as a member in the Group controller. There is a sub-table for groups called "members" (belongs_to groups). What I''m trying to do is assign the session id to the members table so that the user who clicks "Join" is added to the list of members. The join code (from Group controller) is roughly as follows: @group = Group.find(@params[:id]) @group.members.create(params[:member]) * @group.members.user = @session[''user''] @groups.members(params[:member]).joined = 1 flash[:notice] = ''You have successfully joined @group.title'' redirect_to :action => ''show'', :id => @group The problem is with the starred line: for some reason it won''t add the user ID to the members row. The current error is: undefined method `user='' for Member:Class Thoughts? Thanks a lot, - Raffi. -- Posted via http://www.ruby-forum.com/.