Ticket #34560: 34560.5.diff

src/wp-admin/edit-form-advanced.php

@@ -217 +217 @@
 
 $publish_callback_args = null;
 if ( post_type_supports($post_type, 'revisions') && 'auto-draft' != $post->post_status ) {
-        $revisions = wp_get_post_revisions( $post_ID );
-
+        $revision_count = wp_get_post_revision_count( $post_id );
         // We should aim to show the revisions metabox only when there are revisions.
-        if ( count( $revisions ) > 1 ) {
-                reset( $revisions ); // Reset pointer for key()
-                $publish_callback_args = array( 'revisions_count' => count( $revisions ), 'revision_id' => key( $revisions ) );
+        if ( $revision_count > 1 ) {
+                $last_revision = wp_get_last_revision_id( $post_id );
+                $publish_callback_args = array( 'revisions_count' => $revision_count, 'revision_id' => $last_revision ? $last_revision: 0 );
                 add_meta_box('revisionsdiv', __('Revisions'), 'post_revisions_meta_box', null, 'normal', 'core');
         }
 }

src/wp-includes/post-template.php

@@ -1700 +1700 @@
                 _deprecated_argument( __FUNCTION__, '3.6' );
         }
 
-        if ( ! $revisions = wp_get_post_revisions( $post->ID ) )
+        if ( ! $revisions = wp_get_post_revisions_details( $post->ID ) )
                 return;
 
         $rows = '';

src/wp-includes/revision.php

@@ -198 +198 @@
  * @return WP_Post|false The autosaved data or false on failure or when no autosave exists.
  */
 function wp_get_post_autosave( $post_id, $user_id = 0 ) {
-        $revisions = wp_get_post_revisions( $post_id, array( 'check_enabled' => false ) );
+        global $wpdb;
 
-        foreach ( $revisions as $revision ) {
-                if ( false !== strpos( $revision->post_name, "{$post_id}-autosave" ) ) {
-                        if ( $user_id && $user_id != $revision->post_author )
-                                continue;
+        // Contruct the autosave query.
+        $autosave_query = "
+                SELECT *
+                FROM $wpdb->posts
+                WHERE post_parent = %d
+                AND   post_type   = 'revision'
+                AND   post_status = 'inherit'
+                AND   post_name   = %s
+                AND   post_author = %s
+                LIMIT 1";
 
-                        return $revision;
-                }
+        $autosave_details = $wpdb->get_results(
+                $wpdb->prepare(
+                        $autosave_query,
+                        $post_id,
+                        $post_id . '-autosave-v1',
+                        ( 0 !== $user_id ) ? $user_id : get_current_user_id()
+                )
+        );
+
+        if ( empty( $autosave_details ) ) {
+                return false;
         }
 
-        return false;
+        return $autosave_details[0];
 }
 
 /**
@@ -434 +449 @@
 }
 
 /**
+ * Returns the revision details of specified post.
+ *
+ * Data includes details about each revision on a post. Includes ID, post_author,
+ * post_date, post_date_gmt, post_title, post_status, post_parent, and post_modified.
+ *
+ * @since 4.5.0
+ *
+ * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
+ * @return array An array of revision details, or an empty array if post invalid.
+ */
+function wp_get_post_revisions_details( $post_id = 0, $args = null ) {
+        global $wpdb;
+
+        $revision_details = $wpdb->get_results(
+                $wpdb->prepare( "
+                        SELECT ID, post_author, post_date, post_date_gmt, post_title, post_status, post_parent, post_modified
+                        FROM $wpdb->posts
+                        WHERE post_parent = %d
+                        AND   post_type   = 'revision'
+                        AND   post_status = 'inherit'
+                        ORDER BY post_date DESC, ID DESC",
+                        $post->ID
+                )
+        );
+
+        return $revision_details;
+}
+
+/**
+ * Return the count of revisions for a given post.
+ *
+ * @since 4.5.0
+ *
+ * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
+ * @return int The count of revisions for this post, false if post invalid.
+ */
+function wp_get_post_revision_count( $post_id = 0 ) {
+        global $wpdb;
+
+        $revision_count = intval(
+                $wpdb->get_var(
+                        $wpdb->prepare( "
+                                SELECT COUNT(*)
+                                FROM $wpdb->posts
+                                WHERE post_parent = %d
+                                AND   post_type   = 'revision'
+                                AND   post_status = 'inherit'",
+                        $post_id
+                        )
+                )
+        );
+        return $revision_count;
+}
+
+/**
+ * Return the id of the last stored revision.
+ *
+ * @since 4.5.0
+ *
+ * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
+ * @return int The id of the last stored revision for this post, false if post invalid.
+ */
+function wp_get_last_revision_id( $post_id = 0 ) {
+        global $wpdb;
+
+        $last_revision_id = intval(
+                $wpdb->get_var(
+                        $wpdb->prepare( "
+                                SELECT ID, post_date
+                                FROM $wpdb->posts
+                                WHERE post_parent = %d
+                                AND   post_type   = 'revision'
+                                AND   post_status = 'inherit'
+                                ORDER BY post_date DESC, ID DESC
+                                LIMIT 1",
+                        $post->ID
+                        )
+                )
+        );
+        return $last_revision_id;
+}
+
+/**
  * Determine if revisions are enabled for a given post.
  *
  * @since 3.6.0