#ddd-tavern

Go-DDD-CreateOrder.go

// CreateOrder will chaintogether all repositories to create a order for a customer
// will return the collected price of all Products
func (o *OrderService) CreateOrder(customerID uuid.UUID, productIDs []uuid.UUID) (float64, error) {
	// Get the customer
	c, err := o.customers.Get(customerID)
	if err != nil {
		return 0, err
	}

	// Get each Product, Ouchie, We need a ProductRepository
	var products []aggregate.Product
	var price float64
	for _, id := range productIDs {
		p, err := o.products.GetByID(id)
		if err != nil {
			return 0, err
		}
		products = append(products, p)
		price += p.GetPrice()
	}

	// All Products exists in store, now we can create the order
	log.Printf("Customer: %s has ordered %d products", c.GetID(), len(products))

	return price, nil
}