From ec6342588d7d3c1b8dfd3cc21246fbf7067ba248 Mon Sep 17 00:00:00 2001
From: Albert Mueller <2986829+albertmueller@users.noreply.github.com>
Date: Wed, 4 Nov 2020 08:06:29 +0100
Subject: [PATCH] fix return empty string if $string is null

---
 .../Pimcore/DataObject/AbstractSluggableLinkGenerator.php     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/CoreShop/Component/Pimcore/DataObject/AbstractSluggableLinkGenerator.php b/src/CoreShop/Component/Pimcore/DataObject/AbstractSluggableLinkGenerator.php
index 480fe5e6f4..6d02a8343f 100644
--- a/src/CoreShop/Component/Pimcore/DataObject/AbstractSluggableLinkGenerator.php
+++ b/src/CoreShop/Component/Pimcore/DataObject/AbstractSluggableLinkGenerator.php
@@ -18,6 +18,10 @@ abstract class AbstractSluggableLinkGenerator implements LinkGeneratorInterface
 {
     protected function slugify($string)
     {
+        if ($string === null) {
+            return '';
+        }
+
         return strtolower(
             trim(
                 preg_replace('~[^0-9a-z]+~i', '-', html_entity_decode(