From 9198b4ec2fe3832311194aa7797539a66168ecab Mon Sep 17 00:00:00 2001
From: Tobias Reich <tobias.reich.ich@gmail.com>
Date: Tue, 29 Mar 2016 15:37:56 +0200
Subject: [PATCH] Fixed dbTablePrefix starting with an underscore when using an
 old Lychee installation

---
 php/define.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/php/define.php b/php/define.php
index a215adc..d7bebb7 100644
--- a/php/define.php
+++ b/php/define.php
@@ -26,7 +26,7 @@ define('LYCHEE_URL_UPLOADS_BIG', 'uploads/big/');
 define('LYCHEE_URL_UPLOADS_MEDIUM', 'uploads/medium/');
 define('LYCHEE_URL_UPLOADS_THUMB', 'uploads/thumb/');
 
-function defineTablePrefix($dbTablePrefix = '') {
+function defineTablePrefix($dbTablePrefix) {
 
 	// This part is wrapped into a function, because it needs to be called
 	// after the config-file has been loaded. Other defines are available
@@ -34,6 +34,7 @@ function defineTablePrefix($dbTablePrefix = '') {
 
 	// Parse table prefix
 	// Old users do not have the table prefix stored in their config-file
+	if (isset($dbTablePrefix)===false) $dbTablePrefix = '';
 	if ($dbTablePrefix!=='') $dbTablePrefix .= '_';
 
 	// Define tables