public async Task <IActionResult> Edit(int id, [Bind("Id,Name,DateFrom,DateTo,IsVisible")] LottoItemModel lottoItemModel)
{
if (id != lottoItemModel.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(lottoItemModel);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!LottoItemModelExists(lottoItemModel.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(lottoItemModel));
}
public async Task <IActionResult> Create([Bind("Id,Name,DateFrom,DateTo,IsVisible")] LottoItemModel lottoItemModel)
{
if (ModelState.IsValid)
{
_context.Add(lottoItemModel);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
return(View(lottoItemModel));
}
private List <LottoPrizeInfoModel> GetPrizeInfo(LottoItemModel lottoItem)
{
var prizeInfo = new List <LottoPrizeInfoModel>();
var totalAmount = lottoItem.Rate * lottoItem.TicketsInDraw;
var siteFee = (totalAmount / 100m) * lottoItem.Fee;
var prizePool = totalAmount - siteFee;
var prizePoolFraction = prizePool / 100m;
var prizeWeights = LottoHelpers.GetPrizeWeights(lottoItem.Prizes);
for (int i = 0; i < prizeWeights.Count; i++)
{
prizeInfo.Add(new LottoPrizeInfoModel
{
Percentage = prizeWeights[i],
Position = (i + 1),
Prize = Math.Round(prizePoolFraction * prizeWeights[i], 8)
});
}
return(prizeInfo);
}
