I haven't tested the below, but I was working on something very similar this weekend so, I believe it should work... assuming I understood your questions correctly.
has_many :validated_credentials_as_referee, :foreign_key => 'referee_id', :class_name => 'Credentials', :conditions => 'flag = 1' has_many :validated_referenced_users, :through => :validated_credentials_as_referee
Kad Kerforn wrote:
I wrestled with this previously. Not sure which version of rails you are on, but I had to employ the fixes in bug #6466 (I'm on edge rails).
I also added the extensions stuff to get the << operator working.
has_many :connections, :foreign_key => 'source_user_id', :class_name => 'Connection'
has_many :refereeships, :class_name => 'Connection', :foreign_key => "source_user_id", :conditions => "connection_type = 'R'" has_many :referees_out, :through => :refereeships, :source => :target_user do def construct_join_attributes(associate) super.merge({:connection_type => 'R'}) end end