UserField::addRest

static function addRest($query, $n, CRestServer $server)
{
	$fields = [];

	$query = array_change_key_case($query, CASE_UPPER);
	if (is_array($query['FIELDS']))
	{
		$fields = static::checkFields($query['FIELDS']);
	}

	$instance = new static(static::getTargetEntityId());

	return $instance->add($fields);
}