From 17243022e41c72fd1fe85dfd486fbf11894749e0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20Sch=C3=B6lzel?= <fschoelzel.kontakt@gmail.com>
Date: Thu, 2 Jan 2025 14:42:01 +0100
Subject: [PATCH] [BUGFIX] Added null coalescing operator to handle missing
 'DEFAULT' fileGrp in METS

---
 Classes/Controller/PageViewController.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Classes/Controller/PageViewController.php b/Classes/Controller/PageViewController.php
index 1dd6bd808..93f909de5 100644
--- a/Classes/Controller/PageViewController.php
+++ b/Classes/Controller/PageViewController.php
@@ -320,7 +320,7 @@ protected function getMeasures(int $page, MetsDocument $specificDoc = null, $doc
         $measureCoordsFromCurrentSite = [];
         $measureCounterToMeasureId = [];
         $measureLinks = [];
-        $defaultFileId = $doc->physicalStructureInfo[$currentPhysId]['files']['DEFAULT'];
+        $defaultFileId = $doc->physicalStructureInfo[$currentPhysId]['files']['DEFAULT'] ?? null;
         if ($doc instanceof MetsDocument) {
             if (isset($defaultFileId)) {
                 $musicalStruct = $doc->musicalStructureInfo;