public void AddCandidate(Candidate candidate)
{
if (candidate is null)
{
throw new ArgumentNullException(nameof(candidate), "You must add an existing candidate to an election.");
}
var isThisCandidateADuplicate = _candidacies.FirstOrDefault(x => x.Candidate == candidate) != null;
if (!isThisCandidateADuplicate)
{
var candidacy = new Candidacy(this, candidate, null);
_candidacies.Add(candidacy);
candidate.AddCandidacy(candidacy);
}
}
public void AddCandidacy(Candidacy candidacy)
{
_electionCandidacies.Add(candidacy);
}