function __construct() { parent::__construct(); add_action('wp_ajax_ce-update-coupon', array($this, 'ajax_save_coupon')); add_action('wp_ajax_ce-delete-coupon', array($this, 'ajax_delete_coupon')); add_action('wp_ajax_ce-check-coupon-code', array($this, 'ajax_check_coupon_code')); add_action('wp_ajax_nopriv_ce-check-coupon-code', array($this, 'ajax_check_coupon_code')); add_action('wp_ajax_ce-coupon-get-page', array($this, 'load_page')); }