public bool CanDelete(DeleteTankModel tank)
{
if (tank.CurrentFertilizer != null || tank.CurrentLoad > 0)
{
throw new ArgumentException("You cannot delete this tank before it is empty");
}
return(true);
}
public ActionResult ConfirmDelete(int id, DeleteTankModel model)
{
if (ModelState.IsValid)
{
var db = new WarehouseDbContext();
var tank = db.Tanks
.Where(t => t.Id == id)
.FirstOrDefault();
var tankCheck = new DeleteTankModel
{
CurrentFertilizer = tank.CurrentFertilizer,
CurrentLoad = tank.CurrentLoad,
CapacityLeft = tank.MaxCapacity - tank.CurrentLoad,
Name = tank.Name
};
if (tank == null)
{
return(HttpNotFound());
}
try
{
tank.CanDelete(tankCheck);
db.Tanks.Remove(tank);
var tankOperations = db.TankOperations.Where(o => o.TankId == id).ToList();
foreach (var to in tankOperations)
{
db.TankOperations.Remove(to);
}
db.SaveChanges();
return(RedirectToAction("AllTanks"));
}
catch (Exception ex)
{
ModelState.AddModelError("", $"{ex.Message}");
return(View(model));
}
}
return(View(model));
}
