public void UpdateLockData(Door guideDoor)
{
// reset all OOP associations based on input door's lock id, and keytype list.
// first handle lock data in db:
foreach (KeyType type in keytypes)
{
if (guideDoor.keytypes.Contains(type))
{
guideDoor.ConnectKeyType(type);
}
else
{
guideDoor.DisconnectKeyType(type);
}
}
// now update all the OOP:
foreach (Door door in doors)
{
if (door.LockId == guideDoor.LockId)
{
foreach (KeyType type in keytypes)
{
if (guideDoor.keytypes.Contains(type))
{
if (!door.keytypes.Contains(type)) { door.keytypes.Add(type); }
if (!type.doors.Contains(door)) { type.doors.Add(door); }
}
else
{
door.keytypes.Remove(type);
type.doors.Remove(door);
}
}
}
}
}