/// <summary>
/// Replaces one aircraft for another for the user. The old aircraft is not migrated if any existing flights use it.
/// </summary>
/// <param name="acNew">The new aircraft</param>
/// <param name="acOld">The old aircraft</param>
/// <param name="fMigrateFlights">True to migrate any existing flights. If false, the old flights (and the old aircraft) may remain.</param>
public void ReplaceAircraftForUser(Aircraft acNew, Aircraft acOld, bool fMigrateFlights)
{
if (acNew == null)
{
throw new ArgumentNullException("acNew");
}
if (acOld == null)
{
throw new ArgumentNullException("acOld");
}
if (acNew.AircraftID == acOld.AircraftID)
{
return;
}
// Add the new aircraft first
FAddAircraftForUser(acNew);
// Migrate any flights, if necessary...
if (fMigrateFlights)
{
List <Aircraft> lstAc = new List <Aircraft>(GetAircraftForUser());
// make sure we are populated with both old and new so that UpdateFlightAircraftForUser works.
// (This can happen if you have one version of an aircraft and you go to add another version of it;
// they won't both be there, but the query used in UpdateFlightAircraftForUser wants them both present.
if (!lstAc.Exists(ac => ac.AircraftID == acNew.AircraftID))
{
lstAc.Add(acNew);
}
if (!lstAc.Exists(ac => ac.AircraftID == acOld.AircraftID))
{
lstAc.Add(acOld);
}
CachedAircraft = lstAc.ToArray(); // we'll nullify the cache below.
LogbookEntry.UpdateFlightAircraftForUser(this.User, acOld.AircraftID, acNew.AircraftID);
// Migrate any custom currencies associated with the aircraft
foreach (CustomCurrency cc in CustomCurrency.CustomCurrenciesForUser(User))
{
List <int> lst = new List <int>(cc.AircraftRestriction);
for (int i = 0; i < lst.Count; i++)
{
if (lst[i] == acOld.AircraftID)
{
lst[i] = acNew.AircraftID;
cc.AircraftRestriction = lst;
cc.FCommit();
break;
}
}
}
// And migrate any deadlines associated with the aircraft
foreach (DeadlineCurrency dc in DeadlineCurrency.DeadlinesForUser(User, acOld.AircraftID))
{
dc.AircraftID = acNew.AircraftID;
dc.FCommit();
}
try
{
// Then delete the old aircraft. Ignore any errors
FDeleteAircraftforUser(acOld.AircraftID);
}
catch (MyFlightbookException)
{
InvalidateCache();
}
}
}