From ee9ecd4db51299ff1f28488ee77d0eded4ae700d Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 4 Jul 2019 13:49:38 +0200
Subject: [exams] Fix isExamMode() for global exams

---
 modules-available/exams/inc/exams.inc.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules-available/exams/inc/exams.inc.php b/modules-available/exams/inc/exams.inc.php
index dfc38273..da4dec85 100644
--- a/modules-available/exams/inc/exams.inc.php
+++ b/modules-available/exams/inc/exams.inc.php
@@ -12,10 +12,14 @@ class Exams
 		if (!is_array($locationIds)) {
 			$locationIds = array($locationIds);
 		}
-		$l = str_repeat(',?', count($locationIds));
+		if (empty($locationIds)) {
+			$locationIds[] = 0;
+		}
 		$res = Database::queryFirst("SELECT lectureid, autologin FROM exams"
 			. " INNER JOIN exams_x_location USING (examid)"
-			. " WHERE UNIX_TIMESTAMP() BETWEEN starttime AND endtime AND locationid IN (0$l) LIMIT 1", $locationIds);
+			. " WHERE UNIX_TIMESTAMP() BETWEEN starttime AND endtime AND (locationid IN (:lids) OR locationid IS NULL) LIMIT 1", [
+				'lids' => array_values($locationIds),
+		]);
 		if ($res !== false) {
 			$lectureId = $res['lectureid'];
 			$autoLogin = $res['autologin'];
-- 
cgit v1.2.3-55-g7522