From a15b66dc249e0b64b676a5c841d8884f19d389e8 Mon Sep 17 00:00:00 2001
From: slimtim <tim.j.mclaughlin@gmail.com>
Date: Thu, 21 Nov 2013 08:18:19 -0500
Subject: [PATCH] Prevent fatal error when filtering tables in the navigation
 tree. (bug #4159)

---
 libraries/navigation/NavigationTree.class.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/libraries/navigation/NavigationTree.class.php b/libraries/navigation/NavigationTree.class.php
index 85d12f287c..2dcfb7ccd8 100644
--- a/libraries/navigation/NavigationTree.class.php
+++ b/libraries/navigation/NavigationTree.class.php
@@ -692,11 +692,14 @@ class PMA_NavigationTree
         }
 
         if (! empty($this->_searchClause) || ! empty($this->_searchClause2)) {
+            $results = 0;
             if (! empty($this->_searchClause2)) {
-                $results = $node->realParent()->getPresence(
-                    $node->real_name,
-                    $this->_searchClause2
-                );
+                if (is_object($node->realParent())) {
+                    $results = $node->realParent()->getPresence(
+                        $node->real_name,
+                        $this->_searchClause2
+                    );
+                }
             } else {
                 $results = $this->_tree->getPresence(
                     'databases',