ActiveAdmin.register Attendee do scope :child? scope :diet? controller do def apply_sorting(chain) params[:order] ? chain : chain.reorder(last_name: :asc, first_name: :asc) end end index do column :first_name column :last_name column :email column :diet column :notes column :child column :updated_at end config.batch_actions = false config.filters = false config.per_page = 500 config.clear_action_items! end