From d2cafef753cfacc8e10070d0a0d61ce6ed7d0469 Mon Sep 17 00:00:00 2001
From: "uwe.tews@googlemail.com" <uwe.tews@googlemail.com>
Date: Sun, 14 Nov 2010 18:46:18 +0000
Subject: [PATCH] - small performace patch in Smarty class

---
 change_log.txt        | 1 +
 libs/Smarty.class.php | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/change_log.txt b/change_log.txt
index 2875a1a4..d6491979 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -2,6 +2,7 @@
 - bugfix isset() did not allow multiple parameter
 - improvment of some error messages
 - bugfix html_image did use removed property $request_use_auto_globals
+- small performace patch in Smarty class
 
 13/11/2010
 - bugfix  overloading problem when $smarty->fetch()/display() have been used in plugins
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index abd6ea0a..06fee411 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -305,7 +305,7 @@ class Smarty extends Smarty_Internal_Data {
      */
     public function fetch($template, $cache_id = null, $compile_id = null, $parent = null, $display = false)
     {
-        if (is_object($cache_id)) {
+        if (!empty($cache_id) && is_object($cache_id)) {
             $parent = $cache_id;
             $cache_id = null;
         } 
@@ -422,11 +422,11 @@ class Smarty extends Smarty_Internal_Data {
      */
     public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
     {
-        if (is_object($cache_id) || is_array($cache_id)) {
+        if (!empty($cache_id) && (is_object($cache_id) || is_array($cache_id))) {
             $parent = $cache_id;
             $cache_id = null;
         } 
-        if (is_array($parent)) {
+        if (!empty($parent) && is_array($parent)) {
             $data = $parent;
             $parent = null;
         } else {
@@ -448,7 +448,7 @@ class Smarty extends Smarty_Internal_Data {
             $tpl = $template;
         } 
         // fill data if present
-        if (is_array($data)) {
+        if (!empty($data) && is_array($data)) {
             // set up variable values
             foreach ($data as $_key => $_val) {
                 $tpl->tpl_vars[$_key] = new Smarty_variable($_val);