I''ve found nothing about the method in subject. If, for a has_many :though => managements association I do: Model.new.methods.grep(/management/) I see some methods like: :after_remove_for_managements, :before_add_for_managements=, :before_add_for_managements and others similar. What those methods do? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.