From d066ed8db05b1070ba28c8a11ead43b3ce868d05 Mon Sep 17 00:00:00 2001
From: Mark Nelson <markn@moodle.com>
Date: Mon, 2 May 2016 15:34:15 +0800
Subject: [PATCH] MDL-53977 enrol_lti: a hack to workaround a hack to utilise
 DB caching

---
 enrol/lti/classes/helper.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/enrol/lti/classes/helper.php b/enrol/lti/classes/helper.php
index f6a006ad098..d2d6336a575 100644
--- a/enrol/lti/classes/helper.php
+++ b/enrol/lti/classes/helper.php
@@ -267,7 +267,10 @@ class helper {
             $instance->enrol = 'lti';
             $instance->status = $tool->status;
             $ltienrol = enrol_get_plugin('lti');
-            $ltienrol->enrol_user($instance, $userid, null, time(), $timeend);
+
+            // Hack - need to do this to workaround DB caching hack. See MDL-53977.
+            $timestart = intval(substr(time(), 0, 8) . '00') - 1;
+            $ltienrol->enrol_user($instance, $userid, null, $timestart, $timeend);
         }
 
         return self::ENROLMENT_SUCCESSFUL;