public async Task <IActionResult> Create([Bind("Id,FromAccountId, FromAccount, ToAccountId, ToAccount,TransactionDate,TransactionAmount,FromBalance,ToBalance")] Transaction transaction)
{
if (ModelState.IsValid)
{
try
{
var transferAmount = transaction.TransactionAmount;
var fromAcct = GetAccount(transaction.FromAccountId);
if (fromAcct.Balance < transferAmount)
{
TempData["ErrorMessage"] = "Transfer amount cannot be greater than available balance. Please select a different amount.";
return(RedirectToAction(nameof(Create)));
}
var toAcct = GetAccount(transaction.ToAccountId);
if (fromAcct.Id == toAcct.Id)
{
TempData["ErrorMessage"] = "You cannot transfer to the same account. Please choose another account";
return(RedirectToAction(nameof(Create)));
}
transaction.FromAccount = fromAcct.Name;
transaction.ToAccount = toAcct.Name;
transaction.TransactionDate = DateTime.Now;
transaction.FromBalance = fromAcct.Balance;
transaction.ToBalance = toAcct.Balance;
//do balance transfer
if (fromAcct.Balance < transferAmount)
{
throw new ArgumentOutOfRangeException();
}
fromAcct.Balance -= transferAmount;
toAcct.Balance += transferAmount;
//save transaction
_context.UpdateRange(fromAcct, toAcct);
_context.AddRange(transaction);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
catch (Exception ex)
{
Console.WriteLine("Error Occurred: {0} ", ex);
}
}
return(View(transaction));
}