refactor: checkRedemption in ajax_redeem

ajax/frontend/redeem.php

@@ -16,7 +16,8 @@
     'package_quiqqer_coupons_ajax_frontend_redeem',
     function ($code, $orderHash) {
         try {
-            Handler::getCouponCodeByCode($code);
+            $CouponCode = Handler::getCouponCodeByCode($code);
+            $CouponCode->checkRedemption(QUI::getUserBySession());
         } catch (QUI\ERP\Coupons\CouponCodeException $Exception) {
             QUI\System\Log::writeDebugException($Exception);
 

src/QUI/ERP/Coupons/CouponCode.php

@@ -279,7 +279,7 @@ public function redeem($User = null)
      * @return void
      * @throws CouponCodeException - Thrown if not redeemable by the given User
      */
-    protected function checkRedemption($User)
+    public function checkRedemption($User)
     {
         if (!$this->isValid()) {
             throw new CouponCodeException([