DealInvoiceStatisticEntry::isRegistered

static function isRegistered($ownerID)
{
	if(!is_int($ownerID))
	{
		$ownerID = (int)$ownerID;
	}

	if($ownerID <= 0)
	{
		throw new Main\ArgumentException('Owner ID must be greater than zero.', 'ownerID');
	}

	$query = new Query(DealInvoiceStatisticsTable::getEntity());
	$query->addSelect('CREATED_DATE');
	$query->addFilter('=OWNER_ID', $ownerID);
	$query->setLimit(1);

	$dbResult = $query->exec();
	$result = $dbResult->fetch();
	return is_array($result);
}