//Get all transactions
public DataSet GetAllTransactionsBLL()
{
DALTransactionMgmt dalTM = new DALTransactionMgmt();
DataSet ds = dalTM.GetAllTransactionsDAL();
return(ds);
}
// Business logic for transfers internal (overloaded methods
public string Transfer(Account source, Account destination, int amount, string description)
{
// result to send back to presentation layer
string result;
bool stored;
Transaction transaction;
string transId = "";
if ((source.Type != "CURRENT" && source.Type != "SAVINGS") || (destination.Type != "CURRENT" && destination.Type != "SAVINGS"))
{
result = "Only transfers involving CURRENT and SAVINGS accounts are permitted";
}
else
{
if ((source.Type == "CURRENT" && amount > (source.Balance + source.OverdraftLimit)) ||
(source.Type == "SAVINGS" && amount > source.Balance))
{
result = "Insufficient balance.";
}
else
{
if (source.Id == destination.Id)
{
result = "Transfers within the same account is not permitted!";
}
else
{
// Create a new transaction
transaction = new Transaction("TRANSFER", description, amount, staffId, source.Id, destination.Id);
DALTransactionMgmt DALma = new DALTransactionMgmt();
// Executing the transaction
stored = DALma.AddNewtransaction(transaction, ref transId);
if (stored)
{
result = "Transaction executed successfully. Transaction reference: " + transId;
}
else
{
result = "Something went wrong. Transaction not stored.";
}
}
}
}
return(result);
}
// Business logic for storing deposit details
public string SaveDeposit(Account account, int amount)
{
string result;
bool stored;
string transId = "";
if (account != null)
{
result = "Account to receive deposit " + account.ToString();
if (amount > 0)
{
if (account.Type == "CURRENT" || account.Type == "SAVINGS")
{
result += "Amount to be deposited to account: " + amount;
// code for dll here
Transaction transaction = new Transaction("DEPOSIT", "", amount, staffId, cashierNo, account.Id);
DALTransactionMgmt DALma = new DALTransactionMgmt();
stored = DALma.AddNewtransaction(transaction, ref transId);
if (stored)
{
result += " Transaction stored successfully. Transaction reference: " + transId;
}
else
{
result += " Something went wrong, transaction not stored.";
}
}
else
{
result = "Ungrecognised type of account, has to be CURRENT or SAVINGS";
}
}
else
{
result += "Amount to deposit must be greater than 0.";
}
}
else
{
result = "Account not received";
}
return(result);
}
// Business logic for transfering money to an account outside of DBS Credit Union
public string Transfer(Account source, Account destination, AccountHolder holder, int amount, string description)
{
// result to send back to presentation layer
string result;
bool stored;
Transaction transaction;
string tdescription;
string transId = "";
if (source.Type != "CURRENT")
{
result = "Only transfers involving CURRENT accounts are permitted";
}
else
{
if (amount > (source.Balance + source.OverdraftLimit))
{
result = "Insufficient balance.";
}
else
{
result = "Creating new transaction";
// Create a new transaction
// Reshaping the description
tdescription = "To: Name: " + holder.FirstName + " Account number: " + destination.Id.ToString()
+ " Sort Code: " + destination.SortCode + " ;" + description;
transaction = new Transaction("EXTRANSFER", tdescription, amount, staffId, source.Id, externalNo);
DALTransactionMgmt DALma = new DALTransactionMgmt();
// Executing the transaction
stored = DALma.AddNewtransaction(transaction, ref transId);
if (stored)
{
result = "Transaction executed successfully. Transaction reference: " + transId;
}
else
{
result = "Something went wrong. Transaction not stored.";
}
}
}
return(result);
}
// Business logic for withdrawal of deposits
public string WithdrawMoney(Account account, int amount)
{
// result to send back to presentation layer
string result;
bool stored;
string transId = "";
if (account != null)
{
if (amount > 0)
{
if (account.Type == "SAVINGS")
{
if (account.Balance >= amount)
{
// perform transfer
Transaction transaction = new Transaction("WITHDRAWAL", "", amount, staffId, account.Id, cashierNo);
DALTransactionMgmt DALma = new DALTransactionMgmt();
stored = DALma.AddNewtransaction(transaction, ref transId);
if (stored)
{
result = "Transaction stored successfully. Transaction reference: " + transId;
}
else
{
result = "Something went wrong, transaction not stored.";
}
}
else
{
result = "Insufficient balance.";
}
}
else if (account.Type == "CURRENT")
{
if ((account.Balance + account.OverdraftLimit) >= amount)
{
// perform transfer
Transaction transaction = new Transaction("WITHDRAWAL", "", amount, staffId, account.Id, cashierNo);
DALTransactionMgmt DALma = new DALTransactionMgmt();
stored = DALma.AddNewtransaction(transaction, ref transId);
if (stored)
{
result = "Transaction stored successfully.";
}
else
{
result = "Something went wrong, transaction not stored.";
}
}
else
{
result = "Insufficient balance.";
}
}
else
{
result = "Wrong account type, has to be CURRENT or SAVINGS";
}
}
else
{
result = "Amount to withdraw must be greater than 0.";
}
}
else
{
result = "Something went wrong, account not received.";
}
return(result);
}
