Alert: 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.
_prime_term_caches() WordPress Function
The prime_term_caches() function is a caching mechanism for terms in the WordPress taxonomy. This function is called when a term is first created or updated. It ensures that the term's cached data is refreshed and accurate. This function is important for performance, as it reduces the number of database queries needed to retrieve taxonomy data.
_prime_term_caches( array $term_ids, bool $update_meta_cache = true ) #
Adds any terms from the given IDs to the cache that do not already exist in cache.
Parameters
- $term_ids
(array)(Required)Array of term IDs.
- $update_meta_cache
(bool)(Optional) Whether to update the meta cache.
Default value: true
Source
File: wp-includes/taxonomy.php
function _prime_term_caches( $term_ids, $update_meta_cache = true ) {
global $wpdb;
$non_cached_ids = _get_non_cached_ids( $term_ids, 'terms' );
if ( ! empty( $non_cached_ids ) ) {
$fresh_terms = $wpdb->get_results( sprintf( "SELECT t.*, tt.* FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id WHERE t.term_id IN (%s)", implode( ',', array_map( 'intval', $non_cached_ids ) ) ) );
update_term_cache( $fresh_terms );
if ( $update_meta_cache ) {
update_termmeta_cache( $non_cached_ids );
}
}
}
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Changelog
| Version | Description |
|---|---|
| 4.6.0 | Introduced. |