← All changes | inc/sitemaps/class-sitemap-image-parser.php +30 -1 28.2 → trunk View file →

		@@ -78,9 +78,10 @@
78	78	if ( ! is_object( $post ) ) {
79	79	return $images;
80	80	}
81	81
82		- $thumbnail_id = get_post_thumbnail_id( $post->ID );
	82	+ // Pass the post object rather than its ID, so the post does not get re-fetched from the database.
	83	+ $thumbnail_id = get_post_thumbnail_id( $post );
83	84
84	85	if ( $thumbnail_id ) {
85	86
86	87	$src = $this->get_absolute_url( $this->image_url( $thumbnail_id ) );
		@@ -129,8 +130,36 @@
129	130	$images = $image_list;
130	131	}
131	132
132	133	return $images;
	134	+ }
	135	+
	136	+ /**
	137	+ * Primes the meta caches of the featured images of the given posts.
	138	+ *
	139	+ * This parser reads each post's featured image file location from the attachment's
	140	+ * meta individually; warming that meta cache in bulk avoids one query per post on
	141	+ * setups without a persistent object cache.
	142	+ *
	143	+ * @param WP_Post[] $posts The posts to prime the featured-image caches for.
	144	+ *
	145	+ * @return void
	146	+ */
	147	+ public function prime_thumbnail_caches( $posts ) {
	148	+
	149	+ $thumbnail_ids = [];
	150	+
	151	+ foreach ( $posts as $post ) {
	152	+ $thumbnail_id = get_post_thumbnail_id( $post );
	153	+
	154	+ if ( $thumbnail_id ) {
	155	+ $thumbnail_ids[] = $thumbnail_id;
	156	+ }
	157	+ }
	158	+
	159	+ if ( ! empty( $thumbnail_ids ) ) {
	160	+ update_meta_cache( 'post', array_unique( $thumbnail_ids ) );
	161	+ }
133	162	}
134	163
135	164	/**
136	165	* Get the images in the term description.