// technical validation carried out at the application level
private void Validate(NewAccount account)
{
if (!account.Email.Contains("@"))
throw new ValidationFailure("Not a valid email address");
if (account.Email.Length >= 50)
throw new ValidationFailure("Email address must be less than 50 characters");
if (account.Nickname.Length >= 25)
throw new ValidationFailure("Nickname must be less than 25 characters");
if (String.IsNullOrWhiteSpace(account.Email))
throw new ValidationFailure("You must supply an email");
if (String.IsNullOrWhiteSpace(account.Nickname))
throw new ValidationFailure("You must supply a Nickname");
}
public void RecommendAFriend(int referrerId, NewAccount friendsAccountDetails)
{
Validate(friendsAccountDetails);
// ...
}
public void RecommendAFriend(int referrerId, NewAccount friendsAccountDetails)
{
Validate(friendsAccountDetails);
// ...
}