public void Vote(Vote newVote)
{
if (string.IsNullOrEmpty(newVote.restaurant))
{
throw new Exception("Restaurante inválido!");
}
ISingleton instSingle = SingletonTXT.getInstance();
if (!string.IsNullOrEmpty(instSingle.UsersVotedOnDay(newVote.date).Find(element => element.Contains(newVote.login))))
{
throw new Exception("Usuário já votou neste dia!");
}
instSingle.InsertVote(newVote);
}