From 0992d8ce74bba64bcee52bc9185b47ff6f6268a9 Mon Sep 17 00:00:00 2001
From: kyrena <78410399+kyrena@users.noreply.github.com>
Date: Thu, 22 Jun 2023 07:21:00 +0200
Subject: [PATCH] Fixed passing null for trim is deprecated in
 Mage_Catalog_Model_Attribute_Backend_Customlayoutupdate (#3336)

---
 .../Catalog/Model/Attribute/Backend/Customlayoutupdate.php    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/code/core/Mage/Catalog/Model/Attribute/Backend/Customlayoutupdate.php b/app/code/core/Mage/Catalog/Model/Attribute/Backend/Customlayoutupdate.php
index cfc84f778b4..236853fdb8b 100644
--- a/app/code/core/Mage/Catalog/Model/Attribute/Backend/Customlayoutupdate.php
+++ b/app/code/core/Mage/Catalog/Model/Attribute/Backend/Customlayoutupdate.php
@@ -32,7 +32,7 @@ class Mage_Catalog_Model_Attribute_Backend_Customlayoutupdate extends Mage_Eav_M
     public function validate($object)
     {
         $attributeName = $this->getAttribute()->getName();
-        $xml = trim($object->getData($attributeName));
+        $xml = trim((string)$object->getData($attributeName));
 
         if (!$this->getAttribute()->getIsRequired() && empty($xml)) {
             return true;
@@ -42,7 +42,7 @@ public function validate($object)
         $validator = Mage::getModel('adminhtml/layoutUpdate_validator');
         if (!$validator->isValid($xml)) {
             $messages = $validator->getMessages();
-            //Add first message to exception
+            // add first message to exception
             $massage = array_shift($messages);
             $eavExc = new Mage_Eav_Model_Entity_Attribute_Exception($massage);
             $eavExc->setAttributeCode($attributeName);