From f23dea666c9cda0e9b9718731511cd498907ca58 Mon Sep 17 00:00:00 2001
From: toyomoyo <toyomoyo>
Date: Mon, 13 Aug 2007 02:23:10 +0000
Subject: [PATCH] replacing _NULL_ with $@NULL@$ during backup/restore

---
 backup/backuplib.php | 2 +-
 backup/lib.php       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/backup/backuplib.php b/backup/backuplib.php
index 5b892f192d..7f77ac4c7e 100644
--- a/backup/backuplib.php
+++ b/backup/backuplib.php
@@ -446,7 +446,7 @@
         //Here we encode absolute links
         // MDL-10770
         if (is_null($content)) {
-            $content = '_NULL_'; 
+            $content = '$@NULL@$'; 
         } else {
             $content = backup_encode_absolute_links($content);
         }
diff --git a/backup/lib.php b/backup/lib.php
index 52b0875381..113201e341 100644
--- a/backup/lib.php
+++ b/backup/lib.php
@@ -539,7 +539,7 @@
     //It's used intensivelly when restoring modules and saving them in db
     function backup_todb ($data) {
         // MDL-10770
-        if ($data === '_NULL_') {
+        if ($data === '$@NULL@$') {
             return null; 
         } else {
             return restore_decode_absolute_links(addslashes($data));
-- 
2.39.5