public ActionResult ConfirmUnassignCoordinator(int id)
 {
     var clusterCoordinator = _clusterCoordinatorService.GetCoordinatorForUnassign(id);
     var vm = new UnassignClusterCoordinatorViewModel
              {
                  DisasterId = clusterCoordinator.DisasterId,
                  CoordinatorId = id,
                  CoordinatorName = clusterCoordinator.Person.FullName,
                  ClusterName = clusterCoordinator.Cluster.Name,
              };
     return View(vm);
 }
        public ActionResult ConfirmUnassignCoordinator(int id, int disasterId)
        {
            var clusterCoordinator = _clusterCoordinatorService.GetCoordinatorForUnassign(id);
            if (clusterCoordinator == null)
            {
                return RedirectToAction("Index", new { id = disasterId });
            }

            var vm = new UnassignClusterCoordinatorViewModel
                     {
                         DisasterId = clusterCoordinator.DisasterId,
                         CoordinatorId = id,
                         CoordinatorName = clusterCoordinator.Person.FullName,
                         ClusterName = clusterCoordinator.Cluster.Name,
                     };
            return View(vm);
        }