// req: 11.7
public Order createFromShoppingCart(ShoppingCart shoppingCart, Consumer consumer) {
Assert.notNull(shoppingCart);
Assert.isTrue(shoppingCart.getId() != 0);
Assert.notNull(consumer);
Assert.isTrue(consumer.getId() != 0);
Order result;
Collection<OrderItem> orderItems;
double amount;
result = this.create();
// Adding OrderItems
orderItems = orderItemService.createByShoppingCart(shoppingCart, result);
result.setOrderItems(orderItems);
// Calculate amount
amount = this.amountCalculate(orderItems);
result.setAmount(amount);
// Adding Order to Consumer
result.setConsumer(consumer);
return result;
}
