From de1c6dddc0e64f25d4161c3786b4dc505b8fd7b0 Mon Sep 17 00:00:00 2001
From: Thiago Campos Viana <thiago@mugo.ca>
Date: Thu, 21 Nov 2024 18:49:36 -0300
Subject: [PATCH] Preventing Fatal error in PHP 8 for ezobjectrelationlist
 datatype when data_text is an empty string or null We want to standardize the
 data_text default value to an empty string because in PHP 8 most of
 operations with string will throw a Fatal error when passing null. The
 data_text value is initialized with a null value when adding a new attribute
 to an existing content class.

---
 .../Content/FieldValue/Converter/RelationListConverter.php      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/Persistence/Legacy/Content/FieldValue/Converter/RelationListConverter.php b/src/lib/Persistence/Legacy/Content/FieldValue/Converter/RelationListConverter.php
index 9a3dc4a568..f357452cd2 100644
--- a/src/lib/Persistence/Legacy/Content/FieldValue/Converter/RelationListConverter.php
+++ b/src/lib/Persistence/Legacy/Content/FieldValue/Converter/RelationListConverter.php
@@ -86,7 +86,7 @@ public function toFieldValue(StorageFieldValue $value, FieldValue $fieldValue)
         $priorityByContentId = [];
 
         $dom = new DOMDocument('1.0', 'utf-8');
-        if ($dom->loadXML($value->dataText) === true) {
+        if ($value->dataText != "" && $dom->loadXML($value->dataText) === true) {
             foreach ($dom->getElementsByTagName('relation-item') as $relationItem) {
                 /* @var \DOMElement $relationItem */
                 $priorityByContentId[$relationItem->getAttribute('contentobject-id')] =