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функция не описана

WP_REST_Controller::add_additional_fields_schema() WP 4.7.0

Adds the schema from additional fields to a schema array.

The type of object is inferred from the passed schema.

Это метод класса: WP_REST_Controller

Хуков нет.

Возвращает

Массив. Modified Schema array.

Использование

$WP_REST_Controller = new WP_REST_Controller();
$var = $WP_REST_Controller->add_additional_fields_schema( $schema );
$schema(массив) (обязательный)
Schema array.

Код WP REST Controller::add additional fields schema: wp-includes/rest-api/endpoints/class-wp-rest-controller.php VER 5.0.3

<?php
protected function add_additional_fields_schema( $schema ) {
	if ( empty( $schema['title'] ) ) {
		return $schema;
	}

	// Can't use $this->get_object_type otherwise we cause an inf loop.
	$object_type = $schema['title'];

	$additional_fields = $this->get_additional_fields( $object_type );

	foreach ( $additional_fields as $field_name => $field_options ) {
		if ( ! $field_options['schema'] ) {
			continue;
		}

		$schema['properties'][ $field_name ] = $field_options['schema'];
	}

	return $schema;
}