public override int GetHashCode()
{
unchecked {
const int randomPrime = 397;
int hashCode = Id.GetHashCode();
hashCode = (hashCode * randomPrime) ^ DocumentId.GetHashCode();
hashCode = (hashCode * randomPrime) ^ BuyerId.GetHashCode();
hashCode = (hashCode * randomPrime) ^ PurchasedAt.GetHashCode();
hashCode = (hashCode * randomPrime) ^ (TransactionId != null ? TransactionId.GetHashCode() : 0);
return(hashCode);
}
}
public IEnumerable <decimal> GetMaintenancePayments(DateTime at)
{
at = new DateTime(at.Year, at.Month, at.Day);
if (at <= PurchasedAt)
{
yield break;
}
for (var i = 0; i < at.SubtractMonths(PurchasedAt); i += 1)
{
yield return(Inflations.ConsumerPriceIndex
.GetValueAt(
MonthlyMaintenanceFees,
PurchasedAt,
PurchasedAt.AddMonths(i)
));
}
}
