ProviderDecorator::getFmPrimaryFieldType

private function getFmPrimaryFieldType(string $fieldName): string
{
	if ($fieldName === Web::ID)
	{
		return self::WEB_FIELD;
	}

	if ($fieldName === Email::ID)
	{
		return self::EMAIL_FIELD;
	}

	if ($fieldName === Im::ID)
	{
		return self::IM_FIELD;
	}

	if ($fieldName === Phone::ID)
	{
		return self::PHONE_FIELD;
	}

	return self::STRING_FIELD;
}