public void Delete(int id)
{
Customer c = db.Customer.Find(id);
db.Remove(c);
db.SaveChanges();
}
public ActionResult Delete(int manuId)
{
var toDelete = _db.Manufacturers.FirstOrDefault(manu => manu.ManufacturerId == manuId);
if (toDelete == null)
{
return(RedirectToAction(""));
}
//see if any devices are connected and if so delete them all from the database
if (_db.DeviceModels.Any(mod => mod.ManufacturerId == manuId))
{
var connectedModels = _db.DeviceModels.Where(mod => mod.ManufacturerId == manuId);
foreach (var connected in connectedModels)
{
_db.Remove(connected);
}
}
_db.Remove(toDelete);
_db.SaveChanges();
return(RedirectToAction(""));
}
public IActionResult Delete(long id)
{
//make sure customer with id exists
var requested = _db.Customers.FirstOrDefault(c => c.CustomerId == id);
if (requested == null)
{
return(RedirectToAction("List"));
}
//check if any associated emails exist, and if so remove from db
if (_db.Emails.Any(e => e.CustomerId == id))
{
var linkedEmails = _db.Emails.Where(e => e.CustomerId == id);
foreach (var linkedEmail in linkedEmails)
{
_db.Remove(linkedEmail);
}
}
//check if any associated phonenumbers exist, and if so remove from db
if (_db.PhoneNumbers.Any(p => p.CustomerId == id))
{
var linkedPhones = _db.PhoneNumbers.Where(p => p.CustomerId == id);
foreach (var linkedPhone in linkedPhones)
{
_db.Remove(linkedPhone);
}
}
//check if any associated addresses exist, and if so remove from db
if (_db.MailingAddresses.Any(m => m.CustomerId == id))
{
var linkedAddresses = _db.MailingAddresses.Where(m => m.CustomerId == id);
foreach (var linkedAddress in linkedAddresses)
{
_db.Remove(linkedAddress);
}
}
//check if there are any associated Work Orders and if so delete all devices linked to
//that order first then delete the order
if (_db.WorkOrders.Any(o => o.CustomerId == id))
{
var linkedOrders = _db.WorkOrders.Where(o => o.CustomerId == id);
foreach (var order in linkedOrders)
{
var linkedDevices = _db.Devices.Where(d => d.WorkOrderNumber == order.WorkOrderNumber);
foreach (var device in linkedDevices)
{
_db.Remove(device);
}
_db.Remove(order);
}
}
//remove customer form db and save changes
_db.Remove(requested);
_db.SaveChanges();
return(RedirectToAction("List"));
}