From 10dbfea6f633107a90d84d07bba70e807d172eeb Mon Sep 17 00:00:00 2001
From: rvelices <rv-github@modusoptimus.com>
Date: Fri, 25 Apr 2008 23:38:04 +0000
Subject: - less mysql queries on picture page (under some circumstances)

git-svn-id: http://piwigo.org/svn/trunk@2309 68402e56-0260-453c-a942-63ccdbb3a9ee
---
 include/picture_rate.inc.php | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'include/picture_rate.inc.php')

diff --git a/include/picture_rate.inc.php b/include/picture_rate.inc.php
index b5fc884d9..aa1071452 100644
--- a/include/picture_rate.inc.php
+++ b/include/picture_rate.inc.php
@@ -28,14 +28,21 @@
 
 if ($conf['rate'])
 {
-  $query = '
+  if ( NULL != $picture['current']['average_rate'] )
+  {
+    $query = '
 SELECT COUNT(rate) AS count
      , ROUND(AVG(rate),2) AS average
      , ROUND(STD(rate),2) AS std
   FROM '.RATE_TABLE.'
   WHERE element_id = '.$picture['current']['id'].'
 ;';
-  $row = mysql_fetch_array(pwg_query($query));
+    $row = mysql_fetch_array(pwg_query($query));
+  }
+  else
+  { // avg rate null -> no rate -> no need to query db
+    $row = array( 'count'=>0, 'average'=>NULL, 'std'=>NULL );
+  }
   $template->assign('rate_summary', $row);
 
   $user_rate = null;
-- 
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