Ticket #20875: 20875-update_object_term_cache.diff

src/wp-includes/taxonomy.php

@@ -3292 +3292 @@
 
         $taxonomies = get_object_taxonomies( $object_type );
 
-        $ids = array();
-        foreach ( (array) $object_ids as $id ) {
-                foreach ( $taxonomies as $taxonomy ) {
-                        if ( false === wp_cache_get( $id, "{$taxonomy}_relationships" ) ) {
-                                $ids[] = $id;
+        $ids    = array();
+        $groups = array();
+        foreach ( $taxonomies as $taxonomy ) {
+                $groups["{$taxonomy}_relationships"] = $object_ids;
+        }
+        $cache_values = wp_cache_get_multiple( $groups );
+        foreach ( $cache_values as $group => $keys ) {
+                foreach ( $keys as $key ) {
+                        if ( false === $key ) {
+                                $ids[] = $key;
                                 break;
                         }
                 }