Changeset 53482 for trunk/src/wp-includes/post.php

Timestamp:

06/10/2022 01:37:52 PM (2 years ago)

Author:

spacedmonkey

Message:

Prime users cache in WP_Query and post REST API controller.

For a call to WP_Query or a post REST API request that contains posts from multiple authors, call the cache_users function, to ensure that all user data for post authors is primed in
a single database query. This results in far fewer database queries on multiple author sites.

Props spacedmonkey, timothyblynjacobs, peterwilsoncc.
Fixes #55716.

File:

• trunk/src/wp-includes/post.php (modified) (1 diff)

trunk/src/wp-includes/post.php

@@ -7476 +7476 @@
 
 /**
+ * Prime post author user caches.
+ *
+ * @since 6.1.0
+ *
+ * @param WP_Post[] $posts Array of Post objects
+ */
+function update_post_author_caches( $posts ) {
+    $author_ids = wp_list_pluck( $posts, 'post_author' );
+    $author_ids = array_map( 'absint', $author_ids );
+    $author_ids = array_unique( array_filter( $author_ids ) );
+    cache_users( $author_ids );
+}
+
+/**
  * Updates metadata cache for list of post IDs.
  *