public virtual void AcceptCashFromParent(Parent parent, decimal amount, string description)
{
var insufficientFundsMessage = string.Format(
"You can not withdraw {0} because {1}'s account only has {2}",
amount.ToString("c"),
this.Name,
this.Account.Balance.ToString("c"));
this.WithdrawInternal(parent, amount, description, insufficientFundsMessage);
}
public virtual void WithdrawCashFromParent(Parent parent, decimal amount, string description)
{
var insufficientFundsMessage = string.Format(
"You can not withdraw {0} because you only have {1} in your account",
amount.ToString("c"),
this.Account.Balance.ToString("c"));
this.WithdrawInternal(parent, amount, description, insufficientFundsMessage);
parent.SendMessage(string.Format("{0} would like to withdraw {1}", this.Name, amount.ToString("c")));
}
public bool AreNullOrNotRelated(Parent parent, Child child)
{
if (parent == null || child == null) return true;
if (!parent.HasChild(child))
{
throw new TardisBankException("'{0}' is not a child of '{1}'", child.UserName, parent.UserName);
}
return false;
}
void WithdrawInternal(Parent parent, decimal amount, string description, string insufficientFundsMessage)
{
if (parent == null)
{
throw new ArgumentNullException("parent");
}
if (description == null)
{
throw new ArgumentNullException("description");
}
if (!parent.HasChild(this))
{
throw new CashWithdrawException("Not Your Parent");
}
if (amount > this.Account.Balance)
{
throw new CashWithdrawException(insufficientFundsMessage);
}
this.Account.AddTransaction(description, -amount);
}