From efa66e0597137e9514d74b2c8a30e2a85c8c1bc4 Mon Sep 17 00:00:00 2001
From: Sara Arjona <sara@moodle.com>
Date: Wed, 21 Feb 2018 20:53:19 +0100
Subject: [PATCH] MDL-55153 customlang: Remove local DB entries when deleting
 local file

---
 admin/tool/customlang/locallib.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/admin/tool/customlang/locallib.php b/admin/tool/customlang/locallib.php
index 02ae558dcb8..83e879a866d 100644
--- a/admin/tool/customlang/locallib.php
+++ b/admin/tool/customlang/locallib.php
@@ -159,6 +159,11 @@ class tool_customlang_utils {
                         $needsupdate = true;
                         $current[$stringid]->local          = $stringlocal;
                         $current[$stringid]->timecustomized = $now;
+                    } else if (isset($currentlocal) && $stringlocal !== $currentlocal) {
+                        // If local string has been removed, we need to remove also the old local value from DB.
+                        $needsupdate = true;
+                        $current[$stringid]->local          = null;
+                        $current[$stringid]->timecustomized = $now;
                     }
 
                     if ($needsupdate) {