From c394dccf878831a8943df51b39356bcd22be5d1c Mon Sep 17 00:00:00 2001
From: Dan Marsden <dan@danmarsden.com>
Date: Fri, 28 Sep 2018 10:52:28 +1200
Subject: [PATCH] Show message to user if preventsharederror is hit.

---
 classes/output/mobile.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/classes/output/mobile.php b/classes/output/mobile.php
index c367c7d..b2c2d1f 100644
--- a/classes/output/mobile.php
+++ b/classes/output/mobile.php
@@ -139,7 +139,11 @@ class mobile {
                         continue;
                     }
                 }
-                list($canmark, $reason) = attendance_can_student_mark($sess, false);
+                list($canmark, $reason) = attendance_can_student_mark($sess);
+                if ($reason == 'preventsharederror') {
+                    $data['showmessage'] = true;
+                    $data['messages'][]['string'] = 'preventsharederror'; // Lang string to show as a message.
+                }
 
                 if ($isteacher || $canmark) {
                     $html = array('time' => attendance_construct_session_time($sess->sessdate, $sess->duration));