Ticket #37043: 37043.patch

wp-includes/post.php

@@ -3696 +3696 @@
         if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) || ( 'inherit' == $post_status && 'revision' == $post_type ) )
                 return $slug;
 
+        /**
+         * Filters pre post slug.
+         *
+         * @since 4.6.0
+         *
+         * @param string|bool $pre Unique slug for the post, based on $post_name (with a -1, -2, etc. suffix)
+         * @param string $slug The desired slug (post_name).
+         * @param int $post_ID Post ID.
+         * @param string $post_status No uniqueness checks are made if the post is still draft or pending.
+         * @param string $post_type Post type.
+         * @param int $post_parent Post parent ID.
+         */
+        $pre = apply_filters( 'pre_unique_post_slug', false, $slug, $post_ID, $post_status, $post_type, $post_parent );
+        if ( false !== $pre ) {
+                return $pre;
+        }
+
         global $wpdb, $wp_rewrite;
 
         $original_slug = $slug;