public IActionResult UnRSVP(int Id)
        {
            int?           loggedInId          = HttpContext.Session.GetInt32("currentUser");
            GuestAtWedding retrievedConnection = _context.GuestAtWedding.SingleOrDefault(gc => gc.GuestId == loggedInId && gc.WeddingId == Id);

            _context.GuestAtWedding.Remove(retrievedConnection);
            _context.SaveChanges();
            return(Redirect("/dashboard"));
        }
        public IActionResult RSVP(int Id)
        {
            int?           loggedInId    = HttpContext.Session.GetInt32("currentUser");
            GuestAtWedding NewConnection = new GuestAtWedding {
                GuestId   = (int)loggedInId,
                WeddingId = Id
            };

            _context.GuestAtWedding.Add(NewConnection);
            _context.SaveChanges();
            return(Redirect("/dashboard"));
        }