Don't update a blog's last_updated time for all post deletions. Update only when published posts are deleted.

Props SergeyBiryukov
fixes #20433


git-svn-id: https://develop.svn.wordpress.org/trunk@20461 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/ms-blogs.php

@@ -710,3 +710,24 @@ function _update_blog_date_on_post_publish( $new_status, $old_status, $post ) {
 
 	wpmu_update_blogs_date();
 }
+
+/**
+ * Handler for updating the blog date when a published post is deleted.
+ *
+ * @since 3.4.0
+ *
+ * @param int $post_id Post ID
+ */
+function _update_blog_date_on_post_delete( $post_id ) {
+	$post = get_post( $post_id );
+
+	$post_type_obj = get_post_type_object( $post->post_type );
+	if ( ! $post_type_obj->public )
+		return;
+
+	if ( 'publish' != $post->post_status )
+		return;
+
+	wpmu_update_blogs_date();
+}
+

wp-includes/ms-default-filters.php

@@ -35,7 +35,7 @@ add_filter( 'allowed_redirect_hosts', 'redirect_this_site' );
 // Administration
 add_filter( 'term_id_filter', 'global_terms', 10, 2 );
 add_action( 'publish_post', 'update_posts_count' );
-add_action( 'delete_post', 'wpmu_update_blogs_date' );
+add_action( 'delete_post', '_update_blog_date_on_post_delete' );
 add_action( 'transition_post_status', '_update_blog_date_on_post_publish', 10, 3 );
 add_action( 'admin_init', 'wp_schedule_update_network_counts');
 add_action( 'update_network_counts', 'wp_update_network_counts');