public JsonResult RemoveWinner(Winner winner)
{
var selectedEvent = repository.Winners.Where(x => x.EventId == winner.EventId).Select(x => x.Event).FirstOrDefault();
if (!HttpContext.User.Identity.Name.Equals(selectedEvent.Creator))
{
return this.Json(false);
}
repository.RemoveWinner(winner);
return this.Json(true);
}