public static bool IsValid(this IOrder order)
{
return(DataValidationUtil.IsUsernameValid(order.ClientUsername) &&
DataValidationUtil.IsProductIdQuantityMapValid(order.ProductIdQuantityMap) &&
DataValidationUtil.IsPriceValid(order.Price) &&
(!order.DeliveryDate.HasValue || (order.DeliveryDate >= order.OrderDate)));
}
public static bool IsValid(this IClient client)
{
return(DataValidationUtil.IsUsernameValid(client.Username) &&
DataValidationUtil.IsFirstNameValid(client.FirstName) &&
DataValidationUtil.IsLastNameValid(client.LastName) &&
DataValidationUtil.IsStreetValid(client.Street) &&
DataValidationUtil.IsStreetNumberValid(client.StreetNumber) &&
DataValidationUtil.IsPhoneNumberValid(client.PhoneNumber));
}