From 68f755f60852a3fc1ec7f9e6574cb6b302c4891f Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Sat, 24 Jul 2004 03:22:49 +0000
Subject: [PATCH] If the sanitized title is empty, fallback to the post ID for
 the nicename. http://mosquito.wordpress.org/bug_view_page.php?bug_id=0000116

git-svn-id: https://develop.svn.wordpress.org/trunk@1481 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-admin/post.php                    | 10 +++++-----
 wp-includes/functions-formatting.php | 10 +++++++---
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/wp-admin/post.php b/wp-admin/post.php
index a827bb8fe7..674b57132d 100644
--- a/wp-admin/post.php
+++ b/wp-admin/post.php
@@ -45,6 +45,8 @@ case 'post':
 		$standalone = 1;
 		require_once('admin-header.php');
 
+        $post_ID = $wpdb->get_var("SELECT ID FROM $wpdb->posts ORDER BY ID DESC LIMIT 1") + 1;
+
 		$post_pingback = intval($_POST['post_pingback']);
 		$content = balanceTags($_POST['content']);
 		$content = format_to_post($content);
@@ -71,9 +73,9 @@ case 'post':
 		$post_password = $_POST['post_password'];
 		
 		if (empty($post_name))
-			$post_name = sanitize_title($post_title);
+			$post_name = sanitize_title($post_title, $post_ID);
 		else
-			$post_name = sanitize_title($post_name);
+			$post_name = sanitize_title($post_name, $post_ID);
 
 		$trackback = $_POST['trackback_url'];
 	// Format trackbacks
@@ -123,8 +125,6 @@ case 'post':
 
 	$result = $wpdb->query($postquery);
 
-	$post_ID = $wpdb->get_var("SELECT ID FROM $wpdb->posts ORDER BY ID DESC LIMIT 1");
-
 	if (!empty($_POST['mode'])) {
 	switch($_POST['mode']) {
 		case 'bookmarklet':
@@ -302,7 +302,7 @@ case 'editpost':
 		if (empty($ping_status)) $ping_status = 'closed';
 		//if (!$_POST['ping_status']) $ping_status = get_settings('default_ping_status');
 		$post_password = $_POST['post_password'];
-		$post_name = sanitize_title($_POST['post_name']);
+		$post_name = sanitize_title($_POST['post_name'], $post_ID);
 		if (empty($post_name)) $post_name = sanitize_title($post_title);
 		$trackback = $_POST['trackback_url'];
 	// Format trackbacks
diff --git a/wp-includes/functions-formatting.php b/wp-includes/functions-formatting.php
index 2380b1c0a2..9b7e91681f 100644
--- a/wp-includes/functions-formatting.php
+++ b/wp-includes/functions-formatting.php
@@ -1,6 +1,6 @@
 <?php
 
-add_action('sanitize_title', 'sanitize_title_with_dashes');
+add_filter('sanitize_title', 'sanitize_title_with_dashes');
 
 function wptexturize($text) {
 	$output = '';
@@ -119,8 +119,12 @@ function remove_accents($string) {
 	return $string;
 }
 
-function sanitize_title($title) {
-    $title = do_action('sanitize_title', $title);
+function sanitize_title($title, $fallback_title = '') {
+    $title = apply_filters('sanitize_title', $title);
+
+    if (empty($title)) {
+        $title = $fallback_title;
+    }
 
     return $title;
 }