public static Payment Create(
TransactionDescription description,
DateTime transactionDate,
PaymentType paymentType,
Double amount,
BudgetType budgetType,
SpendType spendType,
Note note,
string chequeNumber,
FundType fundType)
{
if (paymentType == null)
{
return(null);
}
if (budgetType == null)
{
return(null);
}
if (spendType == null)
{
return(null);
}
if (fundType == null)
{
return(null);
}
if (transactionDate == DateTime.MinValue)
{
return(null);
}
if (amount <= 0.00)
{
return(null);
}
if (!string.IsNullOrWhiteSpace(chequeNumber))
{
int result;
if (!int.TryParse(chequeNumber, out result))
{
return(null);
}
}
return(new Payment(
description, transactionDate,
paymentType, amount, budgetType,
spendType, note, chequeNumber, fundType));
}
private Payment(
TransactionDescription description,
DateTime transactionDate,
PaymentType paymentType,
double amount,
BudgetType budgetType,
SpendType spendType,
Note note,
string chequeNumber,
FundType fundType) :
base(description, transactionDate,
paymentType, amount, budgetType, note, fundType)
{
SpendType = spendType;
ChequeNumber = chequeNumber;
}