public IActionResult Add()
        {
            var supply = new AddSupplyViewModel
            {
                Plantations = Plantations(),
                Warehouses = Warehouses()
            };

            return View(supply);
        }
        public IActionResult Add(AddSupplyViewModel vm)
        {
            var supply = new Supply
            {
                Id = vm.Id,
                PlantationId = vm.PlantationId,
                WarehouseId = vm.WarehouseId,
                ScheduledDate = vm.ScheduledDate,
                ClosedDate = vm.ClosedDate,
                Status = vm.Status
            };

            _supplies.Add(supply);

            return RedirectToAction(nameof(All));
        }