Drop ORDER BY RAND()

Author: apeschar

common/src/Module.php

@@ -248,7 +248,6 @@ private function getOrdersToInvite($db, $ps_shop_id, $first_order_id) {
                     OR o.{$this->getPluginColumnName('invite_tries')} IS NULL
                 )
                 AND COALESCE(o.{$this->getPluginColumnName('invite_time')}, 0) < $max_time
-            ORDER BY RAND()
             LIMIT 10
         ");
 
@@ -261,6 +260,8 @@ private function getOrdersToInvite($db, $ps_shop_id, $first_order_id) {
             ), 3);
         }
 
+        shuffle($result);
+
         return $result;
     }