Ticket #11863: 11863.2.diff

src/wp-admin/includes/post.php

@@ -1273 +1273 @@
         if ( ! $post )
                 return '';
 
+        $orig_permalink = sanitize_title( $post->post_title );
+
         list($permalink, $post_name) = get_sample_permalink($post->ID, $new_title, $new_slug);
 
         if ( current_user_can( 'read_post', $post->ID ) ) {
@@ -1306 +1308 @@
                         }
                 }
 
+                // Permalink conflict error messages.
+                if ( $new_slug && $new_slug != $post_name_abridged ) {
+                        //error message when editing a permalink
+                        global $wpdb;
+                        $conflicting_post = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_name = %s;", $new_slug ) );
+                        if ( $conflicting_post->post_status == 'trash' ) {
+                                echo '<div id="message" class="error"><p>';
+                                echo sprintf( __( 'There was a permalink conflict with the post "%s" in the trash. %s' ), esc_html( $post->post_title ), '<a href="edit.php?post_status=trash&post_type=' . $post->post_type . '&s=' . $post->post_title . '">View Trash</a>');
+                                echo '</p></div>';
+                        }
+                }elseif ( $orig_permalink != $post_name_abridged && $_GET['message'] == '6' ) {
+                        //error message on a newly created post
+                        echo '<div id="message" class="error"><p>';
+                        echo sprintf( __( 'There was a permalink conflict with the post "%s" in the trash. %s' ), esc_html( $post->post_title ), '<a href="edit.php?post_status=trash&post_type=' . $post->post_type . '&s=' . $post->post_title . '">View Trash</a>' );
+                        echo '</p></div>';
+                }
+
                 $post_name_html = '<span id="editable-post-name" title="' . $title . '">' . $post_name_abridged . '</span>';
                 $display_link = str_replace( array( '%pagename%', '%postname%' ), $post_name_html, urldecode( $permalink ) );
                 $pretty_permalink = str_replace( array( '%pagename%', '%postname%' ), $post_name, urldecode( $permalink ) );