InvoiceExist::loadByInvoiceId

static function loadByInvoiceId($invoiceId)
{
	if ((int)($invoiceId) <= 0)
		return null;

	$fieldsRaw = InvoiceRecurTable::getList([
		"filter" => array("=INVOICE_ID" => $invoiceId),
		"limit" => 1
	]);
	if ($fields = $fieldsRaw->fetch())
	{
		$invoiceObject = new self($fields['ID']);
		$invoiceObject->initFields($fields);
		return $invoiceObject;
	}

	return null;
}