From 1d05ecfd3e06e526d763a04db9a8ad06cabd7295 Mon Sep 17 00:00:00 2001
From: Marina Glancy <marina@moodle.com>
Date: Tue, 9 Apr 2013 11:17:47 +1000
Subject: [PATCH] MDL-38541 Restrict calling rebuild_course_cache() from
 upgrade process

only plugins upgrade scripts can call rebuild_course_cache() and for clearing cache only.
---
 lib/modinfolib.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/modinfolib.php b/lib/modinfolib.php
index 5b8d3ef60b0..5dce79f31bd 100644
--- a/lib/modinfolib.php
+++ b/lib/modinfolib.php
@@ -1279,6 +1279,12 @@ function get_fast_modinfo(&$course, $userid=0) {
 function rebuild_course_cache($courseid=0, $clearonly=false) {
     global $COURSE, $DB, $CFG;
 
+    if (!$clearonly && !empty($CFG->upgraderunning)) {
+        debugging('Function rebuild_course_cache() should not be called from upgrade script unless with argument clearonly.',
+                DEBUG_DEVELOPER);
+        $clearonly = true;
+    }
+
     // Destroy navigation caches
     navigation_cache::destroy_volatile_caches();