public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
var modelName = bindingContext.ModelName;
var valueProviderResult = bindingContext.ValueProvider.GetValue(modelName);
if (valueProviderResult == ValueProviderResult.None)
{
return(Task.CompletedTask);
}
var value = valueProviderResult.FirstValue;
// not good for prod, but good enough for a demo 🙂
if (bindingContext.ModelType == typeof(CartId) && CartId.TryParse(value, out var cartId))
{
bindingContext.Result = ModelBindingResult.Success(cartId);
}
else if (bindingContext.ModelType == typeof(ItemId) && ItemId.TryParse(value, out var itemId))
{
bindingContext.Result = ModelBindingResult.Success(itemId);
}
else
{
bindingContext.Result = ModelBindingResult.Failed();
}
return(Task.CompletedTask);
}
public void AddToCart(Medication album, int quantity)
{
var cartAlbum = _applicationDbContext.DrugCart.SingleOrDefault(s => s.Drug.DrugId == album.DrugId && s.Cart.CartId == CartId);// razlika
var cart = _applicationDbContext.Cart.FirstOrDefault(t => t.CartId == CartId);
System.Diagnostics.Debug.WriteLine("kart" + CartId.ToString());
if (cartAlbum == null)
{
cartAlbum = new DrugCart
{
Cart = this,
Drug = album,
Quantity = 1
};
_applicationDbContext.DrugCart.Add(cartAlbum);
System.Diagnostics.Debug.WriteLine("CARTALBUM" + cartAlbum.DrugCartId.ToString());
}
else
{
cartAlbum.Quantity++;
}
_applicationDbContext.SaveChanges();
foreach (DrugCart dc in _applicationDbContext.DrugCart.ToList())
{
System.Diagnostics.Debug.WriteLine("DCS" + dc.DrugCartId.ToString());
}
}
public CartProxy Find(CartId id)
{
List<Parameter> parameterList = new List<Parameter>();
string where = "where" + Environment.NewLine ;
where += _indent + "Cart.CustomerId = @customerId";
parameterList.Add(new Parameter("customerId", id.CustomerId));
TextBuilder tb = new TextBuilder(_templateSql, new { where = where });
string sql = tb.Generate();
DagentDatabase db = new DagentDatabase(_connection);
CartProxy cart = db.Query<CartProxy>(sql, parameterList.ToArray())
.Unique("CustomerId")
.Create(row => new CartProxy(row.Get<int>("CustomerId")))
.Each((model, row) =>
{
row.Map(model, x => x.CartItemList, "CartItemNo")
.Create(() => new CartItemEntity(row.Get<int>("CustomerId"), row.Get<int>("CartItemNo")))
.Do();
})
.Single();
return cart;
}
public async Task CreateAsync(string customerId)
{
var cart = new Cart(CartId.NewCartId(), new CustomerId(customerId));
subscriber.Subscribe <CartCreatedEvent>(async @event => await HandleAsync(cartCreatedEventHandlers, @event));
await cartRepository.SaveAsync(cart);
}
public IActionResult AddItemToCart(
[FromRoute] CartId cartId,
AddItemToCartModel addItemToCart,
[FromServices] IRequestHandler <AddItemToCartRequest, Result <Unit> > handler)
=> handler
.Handle(new AddItemToCartRequest(cartId, addItemToCart.ItemId, addItemToCart.Quantity))
.ToActionResult();
public async Task DeleteProductFromCart()
{
var services = new ServiceCollection();
services.AddTransient <IProductRepository, FakeProductRepository>();
using var resolver = EventFlowOptions.New
.UseServiceCollection(services)
.AddDefaults(typeof(CartContext).Assembly)
.UseEntityFrameworkEventStore <CartContext>()
.ConfigureEntityFramework(EntityFrameworkConfiguration.New)
.AddDbContextProvider <CartContext, MySqlCartContextProvider>()
.AddEvents(typeof(ProductAddedEvent), typeof(ProductRemovedEvent))
.AddCommands(typeof(AddProductCommand), typeof(RemoveProductCommand))
.AddCommandHandlers(typeof(AddProductCommandHandler), typeof(RemoveProductCommandHandler))
.CreateResolver();
var commandBus = resolver.Resolve <ICommandBus>();
var aggregateStore = resolver.Resolve <IAggregateStore>();
CartId cartId = CartId.NewCartId();
ProductId productId = new ProductId(Guid.Empty);
await commandBus.PublishAsync(new AddProductCommand(cartId, productId), CancellationToken.None);
var cart = await aggregateStore.LoadAsync <Cart, CartId>(cartId, CancellationToken.None);
Assert.AreEqual(1, cart.Products.Count);
await commandBus.PublishAsync(new RemoveProductCommand(cartId, productId), CancellationToken.None);
cart = await aggregateStore.LoadAsync <Cart, CartId>(cartId, CancellationToken.None);
Assert.AreEqual(0, cart.Products.Count);
}
//
// GET: /ShoppingCart/AddToCart/5
public async Task <ActionResult> AddToCart(int id)
{
// Retrieve the product from the database
var addedProduct = db.Products
.Single(product => product.ProductId == id);
// Start timer for save process telemetry
var startTime = DateTime.Now;
// Add it to the shopping cart
var cart = ShoppingCart.GetCart(db, CartId.GetCartId(HttpContext));
cart.AddToCart(addedProduct);
await db.SaveChangesAsync(CancellationToken.None);
// Trace add process
var measurements = new Dictionary <string, double>()
{
{ "ElapsedMilliseconds", DateTime.Now.Subtract(startTime).TotalMilliseconds }
};
telemetry.TrackEvent("Cart/Server/Add", null, measurements);
// Go back to the main store page for more shopping
return(RedirectToAction("Index"));
}
public async Task <ActionResult> AddressAndPayment(Order order)
{
var formCollection = Request.Form;
try
{
if (string.Equals(formCollection.GetValues("PromoCode").FirstOrDefault(), PromoCode,
StringComparison.OrdinalIgnoreCase) == false)
{
return(View(order));
}
else
{
order.Username = User.Identity.GetUserName();
order.OrderDate = DateTime.Now;
//Add the Order
db.Orders.Add(order);
//Process the order
var cart = ShoppingCart.GetCart(db, CartId.GetCartId(HttpContext));
cart.CreateOrder(order);
// Save all changes
await db.SaveChangesAsync(CancellationToken.None);
return(RedirectToAction("Complete", new { id = order.OrderId }));
}
}
catch
{
//Invalid - redisplay with errors
return(View(order));
}
}
//
// GET: /ShoppingCart/
public ActionResult Index()
{
var cart = ShoppingCart.GetCart(db, CartId.GetCartId(HttpContext));
var items = cart.GetCartItems();
var itemsCount = items.Sum(x => x.Count);
var subTotal = items.Sum(x => x.Count * x.Product.Price);
var shipping = itemsCount * (decimal)5.00;
var tax = (subTotal + shipping) * (decimal)0.05;
var total = subTotal + shipping + tax;
var costSummary = new OrderCostSummary
{
CartSubTotal = subTotal.ToString("C"),
CartShipping = shipping.ToString("C"),
CartTax = tax.ToString("C"),
CartTotal = total.ToString("C")
};
// Set up our ViewModel
var viewModel = new ShoppingCartViewModel
{
CartItems = items,
CartCount = itemsCount,
OrderCostSummary = costSummary
};
// Track cart review event with measurements
telemetry.TrackTrace("Cart/Server/Index");
// Return the view
return(View(viewModel));
}
public async Task AddProductToCart()
{
var rmqUri = new Uri("amqp://*****:*****@localhost:5672/vhost");
var services = new ServiceCollection();
services.AddTransient <IProductRepository, FakeProductRepository>();
using var resolver = EventFlowOptions.New
.UseServiceCollection(services)
.AddDefaults(typeof(CartContext).Assembly)
.UseEntityFrameworkEventStore <CartContext>()
.ConfigureEntityFramework(EntityFrameworkConfiguration.New)
.AddDbContextProvider <CartContext, MySqlCartContextProvider>()
.AddEvents(typeof(ProductAddedEvent))
.AddCommands(typeof(AddProductCommand))
.AddCommandHandlers(typeof(AddProductCommandHandler))
.PublishToRabbitMq(RabbitMqConfiguration.With(rmqUri))
.CreateResolver();
var commandBus = resolver.Resolve <ICommandBus>();
var aggregateStore = resolver.Resolve <IAggregateStore>();
CartId cartId = CartId.NewCartId();
await commandBus.PublishAsync(
new AddProductCommand(cartId, new ProductId(Guid.Empty)),
CancellationToken.None);
Cart cart = await aggregateStore.LoadAsync <Cart, CartId>(cartId, CancellationToken.None);
Assert.AreEqual(1, cart.Products.Count);
}
private Cart(CartId cartId, IReadOnlyCollection <CartItem> cartItems)
{
Require.NotNull(cartId, nameof(cartId));
Require.NotNull(cartItems, nameof(cartItems));
Id = cartId;
_items = cartItems.ToDictionary(i => i.ItemId, i => i);
}
public override int GetHashCode()
{
int hashCode = -2134810397;
hashCode = hashCode * -1521134295 + CartId.GetHashCode();
hashCode = hashCode * -1521134295 + ProductId.GetHashCode();
hashCode = hashCode * -1521134295 + Quantity.GetHashCode();
return(hashCode);
}
public void Setup()
{
_cartId = new CartId($"cart-{Guid.NewGuid()}");
_cart = new Cart(_cartId);
ProductId productId = new ProductId(Guid.NewGuid());
_product = new Product(productId, "TestProduct", 50);
}
public void NoDiscount()
{
var cartId = new CartId("some-normal-cart");
var storage = new SpyStorage();
App.ApplyDiscount(cartId, storage);
Assert.Null(storage.Saved);
}
public void MissingCart()
{
var cartId = new CartId("missing-cart");
var storage = new SpyStorage();
App.ApplyDiscount(cartId, storage);
Assert.Null(storage.Saved);
}
public ActionResult <CartModel> Get(
[FromRoute] CartId cartId,
[FromServices] IRequestHandler <GetCartRequest, Either <Error, GetCartResponse> > handler)
=> handler
.Handle(new GetCartRequest(cartId))
.ToActionResult(response => new CartModel
(
response.CartId,
response.Items.Select(i => new CartItemModel(i.ItemId, i.Quantity))
));
public Cart Please()
{
Cart cart = new Cart(CartId.NewCartId());
foreach (var product in _products)
{
cart.Apply(new ProductAddedEvent(product));
}
return(cart);
}
public void HappyPath()
{
var cartId = new CartId("some-gold-cart");
var storage = new SpyStorage();
App.ApplyDiscount(cartId, storage);
var expected = new Cart(new CartId("some-gold-cart"), new CustomerId("gold-customer"), new Amount(50));
Assert.Equal(expected, storage.Saved);
}
static Cart LoadCart(CartId id)
{
if (id.Value.Contains("gold"))
{
return(new Cart(id, new CustomerId("gold-customer"), new Amount(100)));
}
if (id.Value.Contains("normal"))
{
return(new Cart(id, new CustomerId("normal-customer"), new Amount(100)));
}
return(Cart.MissingCart);
}
public async Task <Cart> LoadAsync(CartId cartId)
{
using (var sqlConnection = new SqlConnection(connectionString))
{
await sqlConnection.OpenAsync();
var eventRows = await sqlConnection.QueryAsync(
"select event_type, payload from events where aggregate_id = @AggregareId order by version ASC ",
new { AggregareId = cartId.Id });
IEnumerable <DomainEvent <CartId> > events = GetEventsFrom(eventRows);
return(Cart.FromEvents(events));
}
}
public async Task <ActionResult> RemoveFromCart([FromUri] int id)
{
// Start timer for save process telemetry
var startTime = DateTime.Now;
// Retrieve the current user's shopping cart
var cart = ShoppingCart.GetCart(db, CartId.GetCartId(HttpContext));
// Get the name of the product to display confirmation
var cartItem = db.CartItems.Include("Product").Single(item => item.CartItemId == id);
string productName = cartItem.Product.Title;
// Remove from cart
int itemCount = cart.RemoveFromCart(id);
await db.SaveChangesAsync(CancellationToken.None);
string removed = (itemCount > 0) ? " 1 copy of " : string.Empty;
// Trace remove process
var measurements = new Dictionary <string, double>()
{
{ "ElapsedMilliseconds", DateTime.Now.Subtract(startTime).TotalMilliseconds }
};
telemetry.TrackEvent("Cart/Server/Remove", null, measurements);
// Display the confirmation message
var items = cart.GetCartItems();
var itemsCount = items.Sum(x => x.Count);
var subTotal = items.Sum(x => x.Count * x.Product.Price);
var shipping = itemsCount * (decimal)5.00;
var tax = (subTotal + shipping) * (decimal)0.05;
var total = subTotal + shipping + tax;
var results = new ShoppingCartRemoveViewModel
{
Message = removed + productName +
" has been removed from your shopping cart.",
CartSubTotal = subTotal.ToString("C"),
CartShipping = shipping.ToString("C"),
CartTax = tax.ToString("C"),
CartTotal = total.ToString("C"),
CartCount = itemsCount,
ItemCount = itemCount,
DeleteId = id
};
return(Json(results));
}
public static Cart HasCartInitializedEventWith(
this Cart cart,
Guid id,
Guid clientId)
{
var @event = cart.PublishedEvent <CartInitialized>();
@event.Should().NotBeNull();
@event.Should().BeOfType <CartInitialized>();
@event !.CartId.Should().Be(id);
@event.ClientId.Should().Be(clientId);
@event.CartStatus.Should().Be(CartStatus.Pending);
return(cart);
}
public static void ApplyDiscount(CartId cartId, IStorage <Cart> storage)
{
var cart = LoadCart(cartId);
if (cart != Cart.MissingCart)
{
var rule = LookupDiscountRule(cart.CustomerId);
if (rule != DiscountRule.NoDiscount)
{
var discount = rule.Compute(cart);
var updatedCart = UpdateAmount(cart, discount);
Save(updatedCart, storage);
}
}
}
public IHttpActionResult New()
{
try
{
var cartId = new CartId(Guid.NewGuid());
var newCart = new Cart(cartId);
newCart.Publish(_eventStream);
return(Created(new Uri(Request.RequestUri, cartId.Value.ToString()), "New cart created"));
}
catch (Exception ex)
{
return(InternalServerError(ex));
}
}
public void ForTentativeCart_ShouldSucceed()
{
// Given
var cart = CartBuilder
.Create()
.Initialized()
.Build();
// When
cart.Confirm();
// Then
cart.Status.Should().Be(CartStatus.Confirmed);
cart.Version.Should().Be(2);
var @event = cart.PublishedEvent <CartConfirmed>();
@event.Should().NotBeNull();
@event.Should().BeOfType <CartConfirmed>();
@event !.CartId.Should().Be(cart.Id);
}
public static ShoppingCart GetCart(IServiceProvider services)
{
Guid CartId;
ISession session = services.GetRequiredService <IHttpContextAccessor>()?.HttpContext.Session;
var dbContext = services.GetService <AppDbContext>();
//var cartIdFromSession = session.GetString("CartId");
Guid cartIdFromSession;
if (!string.IsNullOrEmpty(session.GetString("CartId")) && Guid.TryParse(session.GetString("CartId"), out cartIdFromSession))
{
CartId = cartIdFromSession;
}
else
{
CartId = Guid.NewGuid();
}
session.SetString("CartId", CartId.ToString());
return(new ShoppingCart(dbContext)
{
ShoppingCartId = CartId
});
}
public AddItemToCartRequest(CartId cartId, ItemId itemId, int quantity)
{
CartId = cartId;
ItemId = itemId;
Quantity = quantity;
}
public override string ToString()
{
return($"{{{nameof(CartId)}={CartId.ToString()}, {nameof(ProductId)}={ProductId.ToString()}, {nameof(Quantity)}={Quantity.ToString()}}}");
}
public IActionResult RemoveItemFromCart([FromRoute] CartId cartId, [FromRoute] ItemId itemId) => throw new NotImplementedException();
public ActionResult <CartModel> Get([FromRoute] CartId cartId) => throw new NotImplementedException();
public IActionResult UpdateItemInCart([FromRoute] CartId cartId, [FromRoute] ItemId itemId, UpdateItemInCart updateItemInCart) => throw new NotImplementedException();
