From b7d514be34a7fc67c44521772da28513062773a0 Mon Sep 17 00:00:00 2001
From: matt <matt@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Thu, 23 Nov 2006 17:04:05 +0000
Subject: [PATCH] Caching for get_bookmarks

git-svn-id: http://svn.automattic.com/wordpress/trunk@4520 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/bookmark.php | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/wp-includes/bookmark.php b/wp-includes/bookmark.php
index d6a0253588..5efed2ad17 100644
--- a/wp-includes/bookmark.php
+++ b/wp-includes/bookmark.php
@@ -19,7 +19,7 @@ function get_bookmark($bookmark_id, $output = OBJECT) {
 
 // Deprecate
 function get_link($bookmark_id, $output = OBJECT) {
-	return get_bookmark($bookmark_id, $output);
+	return get_bookmark($bookmark_id, $output);	
 }
 
 function get_bookmarks($args = '') {
@@ -35,6 +35,11 @@ function get_bookmarks($args = '') {
 	$r = array_merge($defaults, $r);
 	extract($r);
 
+	$key = md5( serialize( $r ) );
+	if ( $cache = wp_cache_get( 'get_bookmarks', 'bookmark' ) )
+		if ( isset( $cache[ $key ] ) )
+			return apply_filters('get_bookmarks', $cache[ $key ], $r );
+
 	$inclusions = '';
 	if ( !empty($include) ) {
 	$exclude = '';  //ignore exclude, category, and category_name params if using include
@@ -50,7 +55,7 @@ function get_bookmarks($args = '') {
 			}
 		}
 	}
-	if (!empty($inclusions))
+	if (!empty($inclusions)) 
 		$inclusions .= ')';
 
 	$exclusions = '';
@@ -65,9 +70,9 @@ function get_bookmarks($args = '') {
 			}
 		}
 	}
-	if (!empty($exclusions))
+	if (!empty($exclusions)) 
 		$exclusions .= ')';
-
+		
 	if ( ! empty($category_name) ) {
 		if ( $cat_id = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$category_name' LIMIT 1") )
 			$category = $cat_id;
@@ -87,7 +92,7 @@ function get_bookmarks($args = '') {
 		}
 	}
 	if (!empty($category_query)) {
-		$category_query .= ')';
+		$category_query .= ')';	
 		$join = " LEFT JOIN $wpdb->link2cat ON ($wpdb->links.link_id = $wpdb->link2cat.link_id) ";
 	}
 
@@ -128,7 +133,18 @@ function get_bookmarks($args = '') {
 		$query .= " LIMIT $limit";
 
 	$results = $wpdb->get_results($query);
+
+	$cache[ $key ] = $results;
+	wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );
+
 	return apply_filters('get_bookmarks', $results, $r);
 }
 
+function delete_get_bookmark_cache() {
+	wp_cache_delete( 'get_bookmarks', 'bookmark' );
+}
+add_action( 'add_link', 'delete_get_bookmark_cache' );
+add_action( 'edit_link', 'delete_get_bookmark_cache' );
+add_action( 'delete_link', 'delete_get_bookmark_cache' );
+
 ?>
\ No newline at end of file