This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness. Use update_post_caches() instead.

_prime_post_caches( array $ids, bool $update_term_cache = true, bool $update_meta_cache = true )

Adds any posts from the given ids to the cache that do not already exist in cache

Description

See also

Parameters

$ids

(Required) ID list.

$update_term_cache

(Optional) Whether to update the term cache.

Default value: true

$update_meta_cache

(Optional) Whether to update the meta cache.

Default value: true

Source

File: wp-includes/post.php 

function _prime_post_caches( $ids, $update_term_cache = true, $update_meta_cache = true ) {
	global $wpdb;

	$non_cached_ids = _get_non_cached_ids( $ids, 'posts' );
	if ( !empty( $non_cached_ids ) ) {
		$fresh_posts = $wpdb->get_results( sprintf( "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE ID IN (%s)", join( ",", $non_cached_ids ) ) );

		update_post_caches( $fresh_posts, 'any', $update_term_cache, $update_meta_cache );
	}
}

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Related

Uses

Uses
Uses Description
wp-includes/wp-db.php: wpdb::get_results()

Retrieve an entire SQL result set from the database (i.e., many rows)
wp-includes/post.php: update_post_caches()

Call major cache updating functions for list of Post objects.
wp-includes/functions.php: _get_non_cached_ids()

Retrieve ids that are not already present in the cache.

Used By

Used By
Used By Description
wp-includes/widgets/class-wp-widget-recent-comments.php: WP_Widget_Recent_Comments::widget()

Outputs the content for the current Recent Comments widget instance.
wp-includes/media.php: wp_make_content_images_responsive()

Filters ‘img’ elements in post content to add ‘srcset’ and ‘sizes’ attributes.
wp-includes/class-wp-query.php: WP_Query::get_posts()

Retrieve the posts based on query variables.
wp-includes/post-thumbnail-template.php: update_post_thumbnail_cache()

Update cache for thumbnails in the current loop.
wp-includes/class-wp-comment-query.php: WP_Comment_Query::get_comments()

Get a list of comments matching the query vars.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::_display_rows_hierarchical()
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Changelog

Changelog
Version Description
WP-3.4.0 Introduced.