public ActionResult Create(Destination destination)
        {
            if (ModelState.IsValid)
            {
                try
                {
                    using (var session = MvcApplication.FlaneurDocumentStore.OpenSession())
                    {
                        session.Store(destination);
                        session.SaveChanges();
                    }

                    return RedirectToAction("Index");
                }
                catch
                {
                    return View();
                }
            }

            return View();
        }
        public ActionResult Edit(string id, Destination destination)
        {
            try
            {
                Destination destinationToUpdate;
                using (var session = MvcApplication.FlaneurDocumentStore.OpenSession())
                {
                    destinationToUpdate = session.Load<Destination>(id);

                    destinationToUpdate.Name = destination.Name;
                    destinationToUpdate.Cost = destination.Cost;
                    destinationToUpdate.Latitude = destination.Latitude;
                    destinationToUpdate.Longitude = destination.Longitude;

                    session.SaveChanges();
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }