From 0b1292e1d2488202f05ca83db5e309bd8bed69dd Mon Sep 17 00:00:00 2001
From: ryan <ryan@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Wed, 4 Mar 2009 22:28:45 +0000
Subject: [PATCH] Fix calendar widget when there are no posts. Optimize query.
 Props Denis-de-Bernardy. fixes #6442

git-svn-id: http://svn.automattic.com/wordpress/trunk@10708 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/general-template.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/wp-includes/general-template.php b/wp-includes/general-template.php
index 6d46dce46..4a2e3fe35 100644
--- a/wp-includes/general-template.php
+++ b/wp-includes/general-template.php
@@ -930,14 +930,17 @@ function get_calendar($initial = true) {
 	if ( !is_array($cache) )
 		$cache = array();
 
-	ob_start();
 	// Quick check. If we have no posts at all, abort!
 	if ( !$posts ) {
-		$gotsome = $wpdb->get_var("SELECT ID from $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1");
-		if ( !$gotsome )
+		$gotsome = $wpdb->get_var("SELECT 1 FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1");
+		if ( !$gotsome ) {
+			$cache[ $key ] = '';
+			wp_cache_set( 'get_calendar', $cache, 'calendar' );
 			return;
+		}
 	}
 
+	ob_start();
 	if ( isset($_GET['w']) )
 		$w = ''.intval($_GET['w']);