def users
        if params[:ids]
          @users = Spree.user_class.where(id: params[:ids].split(',').flatten)
        else
          @users = Spree.user_class.ransack({
            m: 'or',
            email_start: params[:q],
            ship_address_firstname_start: params[:q],
            ship_address_lastname_start: params[:q],
            bill_address_firstname_start: params[:q],
            bill_address_lastname_start: params[:q]
          }).result.limit(10)
        end