controller.rb

  def destroy
    @journal = current_user.journals.find(params[:id])
    begin
      Page.skip_callback(:save, :after, :run_rendering)
      Page.skip_callback(:destroy, :before, :remove_from_list)
      @journal.destroy
    ensure 
      Page.set_callback(:save, :after, :run_rendering)
      Page.set_callback(:destroy, :before, :remove_from_list)
    end
    respond_with @journal
  end