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update_post_parent_caches()

update_post_parent_caches( WP_Post[] $posts )

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Updates parent post caches for a list of post objects.

Parameters

$postsWP_Post[]required
Array of post objects.

Source

function update_post_parent_caches( $posts ) {	$parent_ids = wp_list_pluck( $posts, 'post_parent' );	$parent_ids = array_map( 'absint', $parent_ids );	$parent_ids = array_unique( array_filter( $parent_ids ) );	if ( ! empty( $parent_ids ) ) {	_prime_post_caches( $parent_ids, false );	} }

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UsesDescription
wp_list_pluck()wp-includes/functions.php

Plucks a certain field out of each object or array in an array.

_prime_post_caches()wp-includes/post.php

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

Used byDescription
WP_REST_Posts_Controller::get_items()wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

Retrieves a collection of posts.

wp_ajax_query_attachments()wp-admin/includes/ajax-actions.php

Handles querying attachments via AJAX.

WP_Media_List_Table::prepare_items()wp-admin/includes/class-wp-media-list-table.php

Changelog

VersionDescription
6.1.0Introduced.

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