delete_(meta_type)_metadata_by_mid хук-фильтр . WP 5.0.0

Filters whether to delete metadata of a specific type by meta ID.

The dynamic portion of the hook, $meta_type, refers to the meta object type (comment, post, term, or user). Returning a non-null value will effectively short-circuit the function.

Использование

add_filter( 'delete_(meta_type)_metadata_by_mid', 'filter_function_name_1444', 10, 2 );
function filter_function_name_1444( $delete, $meta_id ){
	// filter...

	return $delete;
}

$delete(null/true/false)

Whether to allow metadata deletion of the given type.

$meta_id(число)

Meta ID.

Где вызывается хук

$check = apply_filters( "delete_{$meta_type}_metadata_by_mid", null, $meta_id );

Где используется хук (в ядре WP)

add_filter( 'delete_term_metadata_by_mid', 'wp_check_term_meta_support_prefilter' );

add_filter( 'delete_blog_metadata_by_mid', 'wp_check_site_meta_support_prefilter' );