public IActionResult AddLike(int IdeaId) { int? SessionId = HttpContext.Session.GetInt32("UserId"); User ThisUser = _context.users.Where(u => u.UserId == SessionId).SingleOrDefault(); Idea ThisIdea = _context.ideas.Where(i => i.IdeaId == IdeaId).SingleOrDefault(); Like NewLike = new Like { User = ThisUser, Idea = ThisIdea }; _context.Add(NewLike); _context.SaveChanges(); return(RedirectToAction("BrightIdeas")); }