public ActionResult Single(long pollId, [FromForm] long choiceId)
{
// does choice #choiceId belongs to poll #pollId?
if (_pollChoices.Count(c => c.PollId == pollId) == 0)
{
TempData["ErrorMessage"] = "Wrong poll choice!";
}
else
{
// this ip voted for this poll (any choice)?
long [] choices = _pollChoices.Select(c => c.Id).ToArray();
int votesCount =
_db.PollVotes1.Where(votes => votes.IpAddress == _ip && choices.Contains(votes.PollChoiceId))
.Count();
if (votesCount > 0)
{
TempData["ErrorMessage"] = "You can't vote more then once on this poll!";
}
else
{
// OK to save vote
_db.PollVotes1.Add(new PollVotes1()
{
Id = _db.NextPollVote1Id(),
IpAddress = _ip,
UserAgent = _ua,
PollChoiceId = choiceId
});
}
}
return(RedirectToAction("Show", "Polls"));
}