From 19d6305c039fb906d2d8ebcdbb8e4df5604320d4 Mon Sep 17 00:00:00 2001
From: Jan-Hendrik Willms <tleilax+studip@gmail.com>
Date: Mon, 18 Mar 2024 09:09:19 +0000
Subject: [PATCH] prevent warning, fixes #3822
Closes #3822
Merge request studip/studip!2689
---
lib/classes/MyRealmModel.php | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/lib/classes/MyRealmModel.php b/lib/classes/MyRealmModel.php
index 6d1ef02a86f..8008580dffa 100644
--- a/lib/classes/MyRealmModel.php
+++ b/lib/classes/MyRealmModel.php
@@ -655,16 +655,18 @@ class MyRealmModel
// Create sort order for assigned sem_tree entries.
$entries = StudipStudyArea::findMany(array_keys($sem_tree_names));
- $order = [];
- foreach ($entries as $entry) {
- $order[$entry->getId()] = $entry->getIndex();
- }
- $max = max(array_map('strlen', $order));
+ if (count($entries) > 0) {
+ $order = [];
+ foreach ($entries as $entry) {
+ $order[$entry->getId()] = $entry->getIndex();
+ }
+ $max = max(array_map('strlen', $order));
- // Now sort courses by sem_tree entry order.
- uksort($_tmp_courses[$sem_key], function ($a, $b) use ($order, $max) {
- return str_pad($order[$a] ?? '', $max, '0') - str_pad($order[$b] ?? '', $max, '0');
- });
+ // Now sort courses by sem_tree entry order.
+ uksort($_tmp_courses[$sem_key], function ($a, $b) use ($order, $max) {
+ return str_pad($order[$a] ?? '', $max, '0') - str_pad($order[$b] ?? '', $max, '0');
+ });
+ }
//At this point the $_tmp_courses array is sorted by the ordering
//of the sem_tree.
--
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