public async Task <IActionResult> Edit(int id, BeveragesCreateViewModel beverages)
{
if (id != beverages.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
var _beverages = await _context.Beverages.AsNoTracking().FirstOrDefaultAsync(t => t.Id == id);
_beverages.Title = beverages.Title;
_beverages.Description = beverages.Description;
_beverages.Price = beverages.Price;
_beverages.ProducerId = beverages.ProducerId;
_beverages.Category = beverages.Category;
_beverages.Qty = beverages.Qty;
using (var memoryStream = new MemoryStream())
{
if (beverages.Image != null)
{
await beverages.Image.CopyToAsync(memoryStream);
_beverages.Image = memoryStream.ToArray();
}
}
_context.Attach(_beverages);
_context.Entry(_beverages).State = EntityState.Modified;
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BeveragesExists(beverages.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(beverages));
}
public async Task <IActionResult> Create(Payments payments)
{
if (ModelState.IsValid)
{
Payments p = payments;
p.Beverages = _context.Beverages.AsNoTracking().ToList();
var beverage = await _context.Beverages.FirstOrDefaultAsync(m => m.Id == payments.BeverageId);
if (beverage.Qty - 1 < 0)
{
ViewBag["Error"] = "Error: Отсутствет напиток";
return(View(payments));
}
beverage.Qty--;
foreach (var coin in payments.Coins)
{
coin.Count = coin.Count + coin.CurrentCount;
coin.CurrentCount = 0;
}
_context.Update(beverage);
_context.Add(payments);
//считаю сдачу
int change = payments.Change;
int count = payments.Coins.Count;
foreach (var coin in payments.Coins.OrderByDescending(t => t.Cost))
{
if (coin.Count >= 0)
{
int c = change / coin.Cost;
if (c == 0)
{
continue;
}
if (c <= coin.Count)
{
change = change - c * coin.Cost;
coin.Count = coin.Count - c;
coin.CurrentCount = c;
}
else
{
change = change - (coin.Count * coin.Cost);
coin.Count = 0;
coin.CurrentCount = coin.Count;
}
_context.Attach(coin);
_context.Entry(coin).State = EntityState.Modified;
}
}
if (change > 0)
{
ModelState.Clear();
ModelState.AddModelError("Error", "Error: Нельзя дать сдачу");
ViewBag.Error = "Error: Нельзя дать сдачу";
return(View(p));
}
Payments payments1 = new Payments();
payments1.Coins = _context.Coins.AsNoTracking().ToList();
payments1.Beverages = _context.Beverages.AsNoTracking().ToList();
payments1.Money = payments.Change;
payments1.Change = payments.Change;
foreach (var coin in payments.Coins)
{
var c = payments1.Coins.Where(id => id.Id == coin.Id && id.Cost == coin.Cost).FirstOrDefault();
if (c == null)
{
ViewBag.Error = "Error: Произошла ошибка, пожалуйста, получите сдачу и начните работу сначала";
return(View(p));
}
c.CurrentCount = coin.CurrentCount;
c.Count = coin.Count;
}
await _context.SaveChangesAsync();
ModelState.Clear();
return(View("Create", payments1));
}
return(View(payments));
}