From 846ef7d8c3546dbdf9099d03c429ea6f5569ac97 Mon Sep 17 00:00:00 2001
From: Dion Hulse <dd32@git.wordpress.org>
Date: Mon, 18 Oct 2010 11:24:29 +0000
Subject: [PATCH] Save _wp_old_slug for all published post_type's, brings
 old-slug redirection to Posts and CPT's. See #15140

git-svn-id: https://develop.svn.wordpress.org/trunk@15831 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/post.php | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/wp-includes/post.php b/wp-includes/post.php
index 674bc043f4..f5263a9db2 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -3811,22 +3811,23 @@ function wp_mime_type_icon( $mime = 0 ) {
 }
 
 /**
- * Checked for changed slugs for published posts and save old slug.
+ * Checked for changed slugs for published post objects and save the old slug.
  *
- * The function is used along with form POST data. It checks for the wp-old-slug
- * POST field. Will only be concerned with published posts and the slug actually
- * changing.
+ * The function is used when a post object of any type is updated, 
+ * by comparing the current and previous post objects.
  *
  * If the slug was changed and not already part of the old slugs then it will be
  * added to the post meta field ('_wp_old_slug') for storing old slugs for that
  * post.
  *
- * The most logically usage of this function is redirecting changed posts, so
+ * The most logically usage of this function is redirecting changed post objects, so
  * that those that linked to an changed post will be redirected to the new post.
  *
  * @since 2.1.0
  *
  * @param int $post_id Post ID.
+ * @param object $post The Post Object
+ * @param object $post_before The Previous Post Object
  * @return int Same as $post_id
  */
 function wp_check_for_changed_slugs($post_id, $post, $post_before) {
@@ -3834,8 +3835,8 @@ function wp_check_for_changed_slugs($post_id, $post, $post_before) {
 	if ( $post->post_name == $post_before->post_name )
 		return;
 
-	// we're only concerned with published posts
-	if ( $post->post_status != 'publish' || $post->post_type != 'post' )
+	// we're only concerned with published objects
+	if ( $post->post_status != 'publish' )
 		return;
 
 	$old_slugs = (array) get_post_meta($post_id, '_wp_old_slug');