From f7c680e84f429448ff018081e83d2771b883f3ff Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov@git.wordpress.org>
Date: Mon, 4 Jul 2016 19:33:43 +0000
Subject: [PATCH] Media: Avoid PHP notices when trying to show a parent post
 title of an orphaned post type.

Props littler.chicken.
See #37186.

git-svn-id: https://develop.svn.wordpress.org/trunk@37952 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/includes/class-wp-media-list-table.php | 2 +-
 src/wp-includes/media.php                           | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/wp-admin/includes/class-wp-media-list-table.php b/src/wp-admin/includes/class-wp-media-list-table.php
index d2d013d88a..273fe09f7a 100644
--- a/src/wp-admin/includes/class-wp-media-list-table.php
+++ b/src/wp-admin/includes/class-wp-media-list-table.php
@@ -481,7 +481,7 @@ class WP_Media_List_Table extends WP_List_Table {
 ?>
 				<strong><a href="<?php echo get_edit_post_link( $post->post_parent ); ?>">
 					<?php echo $title ?></a></strong><?php
-			} elseif ( current_user_can( 'read_post', $post->post_parent ) ) {
+			} elseif ( $parent_type && current_user_can( 'read_post', $post->post_parent ) ) {
 ?>
 				<strong><?php echo $title ?></strong><?php
 			} else {
diff --git a/src/wp-includes/media.php b/src/wp-includes/media.php
index 00cde91a57..e9e5a291f0 100644
--- a/src/wp-includes/media.php
+++ b/src/wp-includes/media.php
@@ -3062,11 +3062,12 @@ function wp_prepare_attachment_for_js( $attachment ) {
 
 	if ( $post_parent ) {
 		$parent_type = get_post_type_object( $post_parent->post_type );
+
 		if ( $parent_type && $parent_type->show_ui && current_user_can( 'edit_post', $attachment->post_parent ) ) {
 			$response['uploadedToLink'] = get_edit_post_link( $attachment->post_parent, 'raw' );
 		}
 
-		if ( current_user_can( 'read_post', $attachment->post_parent ) ) {
+		if ( $parent_type && current_user_can( 'read_post', $attachment->post_parent ) ) {
 			$response['uploadedToTitle'] = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
 		}
 	}