From 1a4109215855b6143b0077485d4d44fade4e01d2 Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Mon, 12 Mar 2012 18:23:48 +0000
Subject: [PATCH] Call _get_post_ancestors() from get_post_ancestors() if the
 ancestors property is not set in the post object. Works around situations
 where ancestors is not set in the cached version of the post object. see
 #18536

git-svn-id: https://develop.svn.wordpress.org/trunk@20171 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/post.php  | 9 ++++++---
 wp-includes/query.php | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/wp-includes/post.php b/wp-includes/post.php
index e2ef3888b5..2ca5f3cc62 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -430,7 +430,10 @@ function &get_post(&$post, $output = OBJECT, $filter = 'raw') {
 function get_post_ancestors($post) {
 	$post = get_post($post);
 
-	if ( !empty($post->ancestors) )
+	if ( ! isset( $post->ancestors ) )
+		_get_post_ancestors( $post );
+
+	if ( ! empty( $post->ancestors ) )
 		return $post->ancestors;
 
 	return array();
@@ -4645,12 +4648,12 @@ function _get_post_ancestors(&$_post) {
 	if ( empty($_post->post_parent) || $_post->ID == $_post->post_parent )
 		return;
 
-	$id = $_post->ancestors[] = $_post->post_parent;
+	$id = $_post->ancestors[] = (int) $_post->post_parent;
 	while ( $ancestor = $wpdb->get_var( $wpdb->prepare("SELECT `post_parent` FROM $wpdb->posts WHERE ID = %d LIMIT 1", $id) ) ) {
 		// Loop detection: If the ancestor has been seen before, break.
 		if ( ( $ancestor == $_post->ID ) || in_array($ancestor,  $_post->ancestors) )
 			break;
-		$id = $_post->ancestors[] = $ancestor;
+		$id = $_post->ancestors[] = (int) $ancestor;
 	}
 }
 
diff --git a/wp-includes/query.php b/wp-includes/query.php
index c621470a53..9a69ac6abc 100644
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -2671,7 +2671,7 @@ class WP_Query {
 
 		// Check post status to determine if post should be displayed.
 		if ( !empty($this->posts) && ($this->is_single || $this->is_page) ) {
-			$status = get_post_status($this->posts[0]);
+			$status = get_post_status($this->posts[0]->ID);
 			$post_status_obj = get_post_status_object($status);
 			//$type = get_post_type($this->posts[0]);
 			if ( !$post_status_obj->public ) {