fix: correctly put user and group ids in arrays

src/QUI/ERP/Coupons/CouponCode.php

@@ -2,6 +2,7 @@
 
 namespace QUI\ERP\Coupons;
 
+use function GuzzleHttp\Promise\queue;
 use QUI;
 use QUI\Permissions\Permission;
 use QUI\ERP\Discount\Handler as DiscountHandler;

src/QUI/ERP/Coupons/Handler.php

@@ -162,11 +162,11 @@ public static function createCouponCode($discountIds, $settings = [])
         }
 
         if (!empty($settings['userIds'])) {
-            $couponCode['userIds'] = json_encode($settings['userIds']);
+            $couponCode['userIds'] = json_encode(explode(",", $settings['userIds']));
         }
 
         if (!empty($settings['groupIds'])) {
-            $couponCode['groupIds'] = json_encode($settings['groupIds']);
+            $couponCode['groupIds'] = json_encode(explode(",", $settings['groupIds']));
         }
 
         QUI::getDataBase()->insert(
@@ -261,13 +261,13 @@ public static function editCouponCode($id, $discountIds, $settings = [])
         }
 
         if (!empty($settings['userIds'])) {
-            $couponCode['userIds'] = json_encode($settings['userIds']);
+            $couponCode['userIds'] = json_encode(explode(",", $settings['userIds']));
         } else {
             $couponCode['userIds'] = null;
         }
 
         if (!empty($settings['groupIds'])) {
-            $couponCode['groupIds'] = json_encode($settings['groupIds']);
+            $couponCode['groupIds'] = json_encode(explode(",", $settings['groupIds']));
         } else {
             $couponCode['groupIds'] = null;
         }