public async Task <IActionResult> OnPost(decimal totalChange, int productId)
{
var product = await _context.Products.FirstOrDefaultAsync(x => x.Id == productId);
if (product == null)
{
return(NotFound());
}
product.Stock--;
await _context.SaveChangesAsync();
totalChange = Math.Round(totalChange, 2);
var units = CurrencyHelper.GetUSDCommonCoins();
units.AddRange(CurrencyHelper.GetUSDCommonBills());
var change = CurrencyHelper.CalculateChange(totalChange, units);
change.All(c => { c.PluralName = char.ToUpper(c.PluralName[0]) + c.PluralName.Substring(1); return(true); });
var changeOutput = change.Select(x => new { x.PluralName, x.Quantity });
var result = new { Change = changeOutput, Stock = (await _context.Products.FirstOrDefaultAsync(x => x.Id == productId))?.Stock ?? 0 };
return(new JsonResult(result));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Product).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ProductExists(Product.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
var newProduct = new Product();
if (await TryUpdateModelAsync <Product>(
newProduct,
"product",
s => s.Name, s => s.Price, s => s.Stock))
{
_context.Products.Add(Product);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}