From cbe63993004c532db3ece108c9316640f4c09471 Mon Sep 17 00:00:00 2001
From: Petr Skoda <commits@skodak.org>
Date: Fri, 5 Aug 2011 20:13:12 +0200
Subject: [PATCH] MDL-27597 fix invalid results of get_categories when shallow
 is false

---
 lib/datalib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/datalib.php b/lib/datalib.php
index 8aa1f849a16..478156cd712 100644
--- a/lib/datalib.php
+++ b/lib/datalib.php
@@ -847,7 +847,7 @@ function get_categories($parent='none', $sort=NULL, $shallow=true) {
                   FROM {course_categories} cc
                $ccjoin
                   JOIN {course_categories} ccp
-                       ON (cc.path LIKE ".$DB->sql_concat('ccp.path',"'%'").")
+                       ON ((cc.parent = ccp.id) OR (cc.path LIKE ".$DB->sql_concat('ccp.path',"'/%'")."))
                  WHERE ccp.id=?
                 $sort";
         $params = array($parent);