From f9660db25a44a7c59ced8ac6cca001a23648542a Mon Sep 17 00:00:00 2001
From: Dion Hulse <dd32@git.wordpress.org>
Date: Sat, 20 Mar 2010 02:46:31 +0000
Subject: [PATCH] Add parent selection support for custom post_types to the
 Page Attributes metabox. See #12643

git-svn-id: https://develop.svn.wordpress.org/trunk@13778 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-admin/includes/meta-boxes.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/wp-admin/includes/meta-boxes.php b/wp-admin/includes/meta-boxes.php
index f879233af8..cd7f0690fb 100644
--- a/wp-admin/includes/meta-boxes.php
+++ b/wp-admin/includes/meta-boxes.php
@@ -512,12 +512,15 @@ function post_revisions_meta_box($post) {
  * @param object $post
  */
 function page_attributes_meta_box($post) {
+	$post_type_object = get_post_type_object($post->post_type);
+	if ( $post_type_object->hierarchical ) {
 ?>
 <h5><?php _e('Parent') ?></h5>
 <label class="screen-reader-text" for="parent_id"><?php _e('Page Parent') ?></label>
-<?php wp_dropdown_pages(array('exclude_tree' => $post->ID, 'selected' => $post->post_parent, 'name' => 'parent_id', 'show_option_none' => __('Main Page (no parent)'), 'sort_column'=> 'menu_order, post_title')); ?>
+<?php wp_dropdown_pages(array('post_type' => $post->post_type, 'exclude_tree' => $post->ID, 'selected' => $post->post_parent, 'name' => 'parent_id', 'show_option_none' => __('Main Page (no parent)'), 'sort_column'=> 'menu_order, post_title')); ?>
 <p><?php _e('You can arrange your pages in hierarchies. For example, you could have an &#8220;About&#8221; page that has &#8220;Life Story&#8221; and &#8220;My Dog&#8221; pages under it. There are no limits to how deeply nested you can make pages.'); ?></p>
 <?php
+	} // end hierarchical check.
 	if ( 0 != count( get_page_templates() ) ) {
 		$template = !empty($post->page_template) ? $post->page_template : false;
 		?>