Ticket #11399: cpc.patch

post.php

@@ -3924 +3924 @@
  *
  * @uses do_action() Calls 'clean_post_cache' on $id before adding children (if any).
  *
- * @param int $id The Post ID in the cache to clean
+ * @param int $id Optional The Post ID in the cache to clean
+ * @param array $found A list of nodes that have already been found
  */
-function clean_post_cache($id) {
+function clean_post_cache($id,$found=null) {
         global $_wp_suspend_cache_invalidation, $wpdb;
 
         if ( !empty($_wp_suspend_cache_invalidation) )
                 return;
 
+        if ( $found == null )
+           $found = array();
+
         $id = (int) $id;
 
-        wp_cache_delete($id, 'posts');
-        wp_cache_delete($id, 'post_meta');
+        if ( array_key_exists($id,$found) )
+                return;
 
-        clean_object_term_cache($id, 'post');
+        $found[$id] = true;
 
-        wp_cache_delete( 'wp_get_archives', 'general' );
-
-        do_action('clean_post_cache', $id);
-
         if ( $children = $wpdb->get_col( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_parent = %d", $id) ) ) {
                 foreach( $children as $cid )
                         clean_post_cache( $cid );
         }
 
-        if ( is_multisite() )
-                wp_cache_delete( $wpdb->blogid . '-' . $id, 'global-posts' );
+        foreach ( $found as $id => $val ) 
+        {
+                wp_cache_delete($id, 'posts');
+                wp_cache_delete($id, 'post_meta');
+
+                clean_object_term_cache($id, 'post');
+
+                wp_cache_delete( 'wp_get_archives', 'general' );
+
+                do_action('clean_post_cache', $id);
+
+                if ( is_multisite() )
+                        wp_cache_delete( $wpdb->blogid . '-' . $id, 'global-posts' );
+        }
 }
 
 /**