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Improve performance of query in get_adjacent_post(). Get the ID and then call get_post(). Props apokalyptik, nacin, javert03. fixes #18120 

git-svn-id: https://develop.svn.wordpress.org/trunk@21919 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren 2012-09-19 18:11:43 +00:00
parent c2a1b19736
commit 54e1f4abfd
1 changed files with 7 additions and 7 deletions
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14
wp-includes/link-template.php
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@ -1166,23 +1166,23 @@ function get_adjacent_post( $in_same_cat = false, $excluded_categories = '', $pr
$where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date, $post->post_type), $in_same_cat, $excluded_categories );
$sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
$query = "SELECT p.* FROM $wpdb->posts AS p $join $where $sort";
$query = "SELECT p.id FROM $wpdb->posts AS p $join $where $sort";
$query_key = 'adjacent_post_' . md5($query);
$result = wp_cache_get($query_key, 'counts');
if ( false !== $result ) {
if ( is_object( $result ) )
$result = new WP_Post( $result );
if ( $result )
$result = get_post( $result );
return $result;
}
$result = $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort");
$result = $wpdb->get_var( $query );
if ( null === $result )
$result = '';
wp_cache_set($query_key, $result, 'counts');
if ( is_object( $result ) )
$result = new WP_Post( $result );
if ( $result )
$result = get_post( $result );
return $result;
}
@ -2057,7 +2057,7 @@ function plugins_url($path = '', $plugin = '') {
else
$url = WP_PLUGIN_URL;
$url = set_url_scheme( $url );
if ( !empty($plugin) && is_string($plugin) ) {