From 2a077c0d1b1952cf1466c1585de4ab69bd3daf8b Mon Sep 17 00:00:00 2001
From: Tim Hunt <T.J.Hunt@open.ac.uk>
Date: Wed, 15 Aug 2012 10:25:25 +0100
Subject: [PATCH] MDL-34905 quiz: missing global $DB;

This code normally only runs when JS is disabled, which is why this was
not noticed before.
---
 mod/quiz/attemptlib.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mod/quiz/attemptlib.php b/mod/quiz/attemptlib.php
index a4e70fa3afe..7018487590d 100644
--- a/mod/quiz/attemptlib.php
+++ b/mod/quiz/attemptlib.php
@@ -1335,6 +1335,8 @@ class quiz_attempt {
      * flagged state was changed in the request.
      */
     public function save_question_flags() {
+        global $DB;
+
         $transaction = $DB->start_delegated_transaction();
         $this->quba->update_question_flags();
         question_engine::save_questions_usage_by_activity($this->quba);