private void Handle(ProductQuantityChanged @event)
{
if (TryGetOrderItem(@event.Sku, out var item))
{
item.Quantity = @event.To;
}
}
internal void ApplyProductQuantityChanged(IDomainEvent ev)
{
ProductQuantityChanged pqChangedEvent = ev as ProductQuantityChanged;
var existingItem = Items.Single(x => x.ProductId == pqChangedEvent?.ProductId);
Items.Remove(existingItem);
Items.Add(existingItem.WithQuantity(pqChangedEvent?.NewQuantity ?? 0));
}
private void OnProductQuantityChanged(ProductQuantityChanged evt)
{
var product = GetProduct(evt);
product.Quantity += evt.Difference;
product.LastEventNumber = evt.Metadata.EventNumber;
_ctx.SaveChanges();
}
public async Task HandleAsync(ProductQuantityChanged @event)
{
var cartItemId = OrderItemReadModel.IdFor(@event.AggregateId.IdAsString(), @event.ProductId.IdAsString());
var cartItem = (await orderItemRepository
.FindAllAsync(x => x.Id == cartItemId))
.Single();
var cart = await orderRepository.GetByIdAsync(@event.AggregateId.IdAsString());
cart.TotalItems += @event.NewQuantity - @event.OldQuantity;
cartItem.Quantity = @event.NewQuantity;
await orderRepository.UpdateAsync(cart);
await orderItemRepository.UpdateAsync(cartItem);
}
public Task OnProductQuantityChanged(ProductQuantityChanged e)
{
Console.WriteLine($"{_count++}: receive ProductQuantityChanged.");
using (var session = new Session(_connectionFactory))
{
const string sql = @"
update products
set quantity = @Quantity
where id = @Id";
return(session.ExecuteAsync(sql, new
{
Id = e.AggregateRootId,
Quantity = e.Target.Value
}));
}
}
public void When_AddProductToStock_ProductQuantityChanged()
{
Given(new ProductCreated(id, "Test Product", 2));
var command = new AddProductToStock(id, 5);
command.Metadata.CausationId = command.Metadata.CommandId;
command.Metadata.CorrelationId = causationAndCorrelationId;
When(command);
var expectedEvent = new ProductQuantityChanged(id, 5);
expectedEvent.Metadata.CausationId = command.Metadata.CommandId;
expectedEvent.Metadata.CorrelationId = causationAndCorrelationId;
expectedEvent.Metadata.ProcessId = command.Metadata.ProcessId;
Then(expectedEvent);
}
private void Apply(ProductQuantityChanged evt)
{
Quantity += evt.Difference;
}
