public static bool AddTrain(TrainSet train)
{
try
{
Context.TrainSet.Add(train);
Context.SaveChanges();
return true;
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
return false;
}
}
public static bool EditTrain(int oldTrainId,TrainSet newTrain)
{
try
{
TrainSet original = Context.TrainSet.FirstOrDefault(x => x.Id == oldTrainId);
if (original == null)
{
return false;
}
original.IsFree = newTrain.IsFree;
original.Description = newTrain.Description;
original.Seats = newTrain.Seats;
Context.SaveChanges();
return true;
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
return false;
}
}
public static bool DeleteTrain(TrainSet train)
{
try
{
//if (!Context.TrainSet.Contains(train))
//{
// throw new ArgumentException(string.Format(DbDoestNotContain + "train!"));
//}
Context.TrainSet.Remove(train);
Context.SaveChanges();
return true;
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
return false;
}
}
