public bool HasTakenBet(Bettor bettor, Bet bet)
{
if (bettor == null)
{
throw new ArgumentNullException(nameof(bettor));
}
if (bettor.Id == default(int))
{
throw new ArgumentException(nameof(bettor));
}
if (bet == null)
{
throw new ArgumentNullException(nameof(bet));
}
if (bet.Id == default(int))
{
throw new ArgumentException(nameof(bet));
}
return(_betRepository.HasTakenBet(bettor, bet));
}