Changeset 43439 for trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

Timestamp:

07/13/2018 04:06:23 AM (7 years ago)

Author:

pento

Message:

REST API: Expose revision count and last revision ID on Post response

So that REST API clients can show appropriate UI for a post's revisions, it needs to know how many revisions the post has, and what the latest revision ID is.

Props kadamwhite, danielbachhuber, birgire, TimothyBlynJacobs.
Fixes #44321.

File:

• trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php (modified) (1 diff)

trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

@@ -1676 +1676 @@
 
         if ( in_array( $post->post_type, array( 'post', 'page' ), true ) || post_type_supports( $post->post_type, 'revisions' ) ) {
+            $revisions       = wp_get_post_revisions( $post->ID, array( 'fields' => 'ids' ) );
+            $revisions_count = count( $revisions );
+
             $links['version-history'] = array(
-                'href' => rest_url( trailingslashit( $base ) . $post->ID . '/revisions' ),
-            );
+                'href'  => rest_url( trailingslashit( $base ) . $post->ID . '/revisions' ),
+                'count' => $revisions_count,
+            );
+
+            if ( $revisions_count > 0 ) {
+                $last_revision = array_shift( $revisions );
+
+                $links['predecessor-version'] = array(
+                    'href' => rest_url( trailingslashit( $base ) . $post->ID . '/revisions/' . $last_revision ),
+                    'id'   => $last_revision,
+                );
+            }
+
         }