Hi, I''ve created a Model with Better Nested Set, but i''m having problems to create child items My workflow is: - In the (new) form, i pass the desired parent_id in a hidden field. - In the create action, i create the register and after saving it i use the move_to_child_of method. Everything works! My only problem is that Rails warns that I can''t mass asign the property "parent_id" How can i avoid this warning? Below is my create action: def create @invite = Invite.new(params[:invite]) begin @parent_invitee = Invite.find_by_id(params[:invite][:parent_id]) rescue Exception => exc logger.error("Invalid parent_id: #{exc.message}") render :action => "new" end respond_to do |format| if @invite.save @invite.move_to_child_of(@parent_invitee.id) flash[:notice] = ''Invite was successfully created.'' format.html { redirect_to :action => "show" } ... --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---