From dd5406527aeea0e683eb84ea17bf918f3653e4f6 Mon Sep 17 00:00:00 2001
From: Eric Merrill <eric.merrill@moodle.com>
Date: Fri, 18 Mar 2022 15:30:19 -0400
Subject: [PATCH] MDL-74269 course: Make sure category exists before updating

---
 lib/db/upgrade.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 0ae919425ac..c6a02431b21 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -2764,7 +2764,7 @@ function xmldb_main_upgrade($oldversion) {
         // Set the description field to HTML format for the Default course category.
         $category = $DB->get_record('course_categories', ['id' => 1]);
 
-        if ($category->descriptionformat == FORMAT_MOODLE) {
+        if (!empty($category) && $category->descriptionformat == FORMAT_MOODLE) {
             // Format should be changed only if it's still set to FORMAT_MOODLE.
             if (!is_null($category->description)) {
                 // If description is not empty, format the content to HTML.