List <Trainee> IDL.getTraineeList()
{
List <Trainee> traineeList = (from XElement traineeElement in TraineeRoot.Elements()
select traineeElement.XmlToDOTrainee()).ToList();
return(traineeList);
}
List <Trainee> IDL.getCertainTraineesList(Predicate <Trainee> pred)
{
List <Trainee> traineeList = (from XElement traineeElement in TraineeRoot.Elements()
select traineeElement.XmlToDOTrainee()).ToList();
List <Trainee> certainTraineesList = (from Trainee trainee in traineeList
where pred(trainee)
select trainee).ToList();
return(certainTraineesList);
}
void IDL.removeTrainee(int id)
{
XElement traineeElement = (from trainee in TraineeRoot.Elements()
where int.Parse(trainee.Element("ID").Value) == id
select trainee).FirstOrDefault();
if (traineeElement == null)
{
throw new TraineesIdNotFoundException(id);
}
traineeElement.Remove();
TraineeRoot.Save(TraineePath);
}
void IDL.updateTrainee(int id, Trainee updatedTrainee)
{
XElement traineeElement = (from item in TraineeRoot.Elements()
where int.Parse(item.Element("ID").Value) == id
select item).FirstOrDefault();
if (traineeElement == null)
{
throw new TraineesIdNotFoundException(id);
}
traineeElement.Remove();
TraineeRoot.Add(updatedTrainee.ToXmlTrainee());
TraineeRoot.Save(TraineePath);
}
Trainee IDL.getTrainee(int id)
{
//if (!TraineeRoot.Element("trainee").HasElements)
// throw new Exception("No Trainees in the dataSource");
XElement foundTrainee = (from XElement traineeElement in TraineeRoot.Elements()
where traineeElement.Element("ID").Value.Equals(id.ToString())
select traineeElement).FirstOrDefault();
if (foundTrainee == null)
{
throw new TraineesIdNotFoundException(id);
}
return(foundTrainee.XmlToDOTrainee());
}
void IDL.addTrainee(Trainee trainee)
{
int id = (from item in TraineeRoot.Elements()
where (int.Parse(item.Element("ID").Value) == trainee.ID)
select(int.Parse(item.Element("ID").Value))).FirstOrDefault();
if (id != 0)
{
throw new TraineesIdAlreadyExistsException(trainee.ID, trainee.FirstName + " " + trainee.LastName);
}
TraineeRoot.Add(trainee.ToXmlTrainee());
TraineeRoot.Save(TraineePath);
}
