public IEnumerable Handle(PlaceVote c)
{
if (!Created)
{
throw new PollNotCreated();
}
if (Ended)
{
throw new PollAlreadyEnded();
}
if (!Options.Contains(c.Option))
{
throw new InvalidOption();
}
if (UsersThatVoted.Contains(c.User))
{
throw new UserAlreadyVoted();
}
yield return(new VotePlaced
{
Id = c.Id,
User = c.User,
Option = c.Option
});
}
public async Task VoteAsync(int placeId, string userId, bool isUpVote)
{
var vote = this.votesRepository.All()
.FirstOrDefault(x => x.PlaceId == placeId && x.UserId == userId);
if (vote != null)
{
vote.Type = isUpVote ? VoteType.UpVote : VoteType.DownVote;
}
else
{
vote = new PlaceVote
{
PlaceId = placeId,
UserId = userId,
Type = isUpVote ? VoteType.UpVote : VoteType.DownVote,
};
await this.votesRepository.AddAsync(vote);
}
await this.votesRepository.SaveChangesAsync();
}