public async Task <IActionResult> Update(Trade trade)
{
try
{
if (Exists(trade.Code, trade.Id))
{
ModelState.AddModelError("Code", "Já existe uma negociação cadastrada com este código.");
}
if (ModelState.IsValid)
{
_context.Update(trade);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
}
catch (DbUpdateException)
{
//Log the error (uncomment ex variable name and write a log.
ModelState.AddModelError("", "Unable to save changes. " +
"Try again, and if the problem persists " +
"see your system administrator.");
}
return(View(trade));
}
public async Task <int> AddTradeOffer(int traderId, TradeOffer tradeOffer)
{
var trader = await context.FindAsync <Trader>(traderId);
await LoadEntity(trader);
trader.TradeOffers.Add(tradeOffer);
await context.SaveChangesAsync();
return(tradeOffer.Id);
}
// GET: Stocks/Buy/:id
public async Task <IActionResult> Buy(int?id)
{
if (id == null)
{
return(NotFound());
}
var stockModel = await _context.Stocks
.FirstOrDefaultAsync(m => m.ID == id);
var user = await _context.Accounts.FirstAsync();
if (stockModel == null)
{
return(NotFound());
}
user.Balance = Math.Round(user.Balance - stockModel.Price);
stockModel.Price += Math.Round((new Random().NextDouble()) * (100 - -100) + -100);
_context.Stocks.Update(stockModel);
_context.Accounts.Update(user);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
