public async Task HandleAsync(ProductQuantityChangedEvent @event)
{
var cartItemId = CartItemReadModel.IdFor(@event.AggregateId.IdAsString(), @event.ProductId.IdAsString());
var cartItem = (await cartItemRepository
.FindAllAsync(x => x.Id == cartItemId))
.Single();
var cart = await cartRepository.GetByIdAsync(@event.AggregateId.IdAsString());
cart.TotalItems += @event.NewQuantity - @event.OldQuantity;
cartItem.Quantity = @event.NewQuantity;
await cartRepository.UpdateAsync(cart);
await cartItemRepository.UpdateAsync(cartItem);
}
public async Task HandleAsync(ProductAddedEvent @event)
{
var product = await productRepository.GetByIdAsync(@event.ProductId.IdAsString());
var cart = await cartRepository.GetByIdAsync(@event.AggregateId.IdAsString());
var cartItem = CartItemReadModel.CreateFor(@event.AggregateId.IdAsString(), @event.ProductId.IdAsString());
cartItem.ProductName = product.Name;
cartItem.Quantity = @event.Quantity;
cart.TotalItems += @event.Quantity;
await cartRepository.UpdateAsync(cart);
await cartItemRepository.InsertAsync(cartItem);
}
