// GET api/products/5
public Product Get(int id)
{
var product = new ShoppingCartQuery().GetProduct(id);
if (product == null)
{
throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.NotFound));
}
return(product);
}
public async Task <ActionResult <ShoppingCartDto> > UpdateCart([FromQuery] ShoppingCartQuery queryObj)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if ((queryObj.Action == ShoppingCartActions.Add || queryObj.Action == ShoppingCartActions.Delete) && !queryObj.ProductId.HasValue)
{
return(BadRequest("The product Id wasn't specify" + queryObj.ToString()));
}
var shoppingCart = await _context.ShoppingCarts
.Include(sc => sc.Products)
.SingleOrDefaultAsync(sc => sc.Id == queryObj.CartId);
if (shoppingCart == null)
{
return(StatusCode(500));
}
switch (queryObj.Action)
{
//очистка корзины
case ShoppingCartActions.Clear:
//var cartItems = _context.Entry(shoppingCart).Collection(sc => sc.Products).Query().ToList();
var cartItems = shoppingCart.Products;
_context.ShoppingCartsProducts.RemoveRange(cartItems);
break;
//если пользователь добавляет продукт или увеличивает его количество
case ShoppingCartActions.Add:
if (shoppingCart.Products.Any(p => p.ProductId == queryObj.ProductId))
{
var cartItem = shoppingCart.Products.SingleOrDefault(p => p.ProductId == queryObj.ProductId);
cartItem.Quantity += 1;
}
else
{
var product = await _context.Products.FindAsync(queryObj.ProductId.Value);
if (product == null)
{
return(BadRequest($"Product with id {queryObj.ProductId.Value} doesn't exist"));
}
shoppingCart.Products.Add(new ShoppingCartProduct()
{
Product = product,
Quantity = 1
});
}
break;
//если пользователь убирает продукт из корзины или уменьшает ео количество
case ShoppingCartActions.Delete:
if (shoppingCart.Products.Any(p => p.ProductId == queryObj.ProductId))
{
var cartItem = shoppingCart.Products.SingleOrDefault(p => p.ProductId == queryObj.ProductId);
if (cartItem.Quantity > 1)
{
cartItem.Quantity -= 1;
}
else
{
shoppingCart.Products.Remove(cartItem);
}
}
else
{
return(BadRequest($"Product with id {queryObj.ProductId.Value} doesn't exist in shoppingCart"));
}
break;
default: return(BadRequest("Wrong productId was sent. Available values are clear, add, delete"));
}
//загружаем соответствующие продукты и возвращаем корзину с продуктами(хотя можно возвращать пока без всех продуктов)
// 1) shoppingCart = await _context.ShoppingCarts
// .Include(sc => sc.Products)
// .ThenInclude(p => p.Product)
// .SingleOrDefaultAsync(sc => sc.Id == queryObj.CartId);
// 2 если будем возвращать количество
// var count = await _context.Entry(shoppingCart).Collection(sc => sc.Products).Query().CountAsync(); Query().Include(p => p.Product);
await _context.Products.Where(p => shoppingCart.Products.Select(scp => scp.ProductId).Contains(p.Id)).LoadAsync();
await _context.SaveChangesAsync();
return(Ok(_mapper.Map <ShoppingCartDto>(shoppingCart)));
}