public Vote(User voter, Option option)
{
VoterId = voter.Id;
Voter = voter;
OptionId = OptionId;
Option = option;
}
public bool AlreadyVoted(User voter)
{
foreach(var option in Options)
{
if(option.Votes.Contains(new Vote(voter, option)))
{
return true;
}
}
return false;
}
private ActionResult Register(string username)
{
try
{
var newuser = new User(username);
_unitOfWork.UserRepository.Add(newuser);
_unitOfWork.Save();
FormsAuthentication.SetAuthCookie(username, true);
}catch
{
//persist model state and refierct to index?
throw;
}
return RedirectToAction("Index", "Question");
}
public Question(string text, List<string> options, User asker)
{
Id = Guid.NewGuid();
Text = text;
Options = new List<Option>();
if (options == null || options.Count < 2 || options.Count > 4) throw new InvalidOptionsException();
for (int i = 0; i < options.Count; i++)
{
Options.Add(new Option(i, options[i]));
}
Asker = asker;
//Charge user for asking a question:
if (!asker.ChargePoints(PRICE_FOR_ASKING))
{
throw new NotEnoughPointsException(asker.Points, PRICE_FOR_ASKING);
}
}
public void Add(User user)
{
_context.Users.Add(user);
}
public void VoteFor(User voter)
{
Vote newVote = new Vote(voter, this);
Votes.Add(newVote);
}
public void Vote(User voter, int option)
{
// 1. Check if user has not already voted
if (AlreadyVoted(voter))
{
throw new AlreadyVotedException();
}
// 2. Register Vote:
var chosenOption = Options.Where(opt => opt.Key == option).Single();
chosenOption.VoteFor(voter);
// 3. Reward Voter for voting:
voter.AwardPoints(REWARD_FOR_VOTING);
}