public void UpdateTutoringSession(TutoringSession ts)
{
if (ts != null)
{
try
{
//Vi måste väl ta bort tutoingsession ur kursen och lägga till en ny väl?
Course tmpCourse = Courses.FirstOrDefault(c => c.Code.Equals(ts.Code));
TutoringSessionUpdateDTO tsDTO = new TutoringSessionUpdateDTO(selectedTutoringSession, ts);
dal.UpdateTutoringSession(tsDTO);
Status = "Tutoring Session was updated";
}
catch (Exception ex)
{
Status = ExceptionHandler.GetErrorMessage(ex);
}
TutoringSessions = new ObservableCollection <TutoringSession>(dal.GetAllTutoringSessions());
NotifyPropertyChanged("TutoringSessions");
Courses = new ObservableCollection <Course>(dal.GetAllCourses());
NotifyPropertyChanged("Courses");
SelectedTutoringSession = null;
NotifyPropertyChanged("SelectedTutoringSession");
SelectedCourse = Courses.FirstOrDefault(c => c.Code.Equals(ts.Code));
NotifyPropertyChanged("SelectedCourse");
}
}
public void AddTutor(TutoringSession ts)
{
if (ts != null)
{
TutorTutoringSession tmptts = new TutorTutoringSession(selectedTutor, ts);
try
{
TutoringSessionUpdateDTO updateDTO = new TutoringSessionUpdateDTO(ts, ts);
ts.Tutors.Add(tmptts);
selectedTutor.TutoringSessions.Add(tmptts);
dal.UpdateTutoringSession(updateDTO);
Status = "Added to planned sessions";
}
catch (Exception ex)
{
// Rollback
ts.Tutors.Remove(tmptts);
selectedTutor.TutoringSessions.Remove(tmptts);
Status = ExceptionHandler.GetErrorMessage(ex);
}
NotifyPropertyChanged("TutorTutoredHours");
NotifyPropertyChanged("TutorPlannedHours");
NotifyPropertyChanged("TutorLastSession");
NotifyPropertyChanged("TutorNextSession");
NotifyPropertyChanged("AvailableTutoringSessions");
NotifyPropertyChanged("PlannedTutoringSessions");
}
}
public void DeleteTutor(TutoringSession ts)
{
if (ts != null)
{
ICollection <TutorTutoringSession> tutorTutoringSessionsToBeDeleted = new List <TutorTutoringSession>();
foreach (TutorTutoringSession tts in ts.Tutors)
{
if (tts.Tutor.Equals(selectedTutor))
{
tutorTutoringSessionsToBeDeleted.Add(tts);
}
}
foreach (TutorTutoringSession tts in tutorTutoringSessionsToBeDeleted)
{
ts.Tutors.Remove(tts);
selectedTutor.TutoringSessions.Remove(tts);
}
try
{
TutoringSessionUpdateDTO updateDTO = new TutoringSessionUpdateDTO(ts, ts);
dal.UpdateTutoringSession(updateDTO);
Status = "Removed from planned sessions";
}
catch (Exception ex)
{
// Rollback
foreach (TutorTutoringSession tts in ts.Tutors)
{
ts.Tutors.Add(tts);
selectedTutor.TutoringSessions.Add(tts);
}
Status = ExceptionHandler.GetErrorMessage(ex);
}
NotifyPropertyChanged("TutorTutoredHours");
NotifyPropertyChanged("TutorPlannedHours");
NotifyPropertyChanged("TutorLastSession");
NotifyPropertyChanged("TutorNextSession");
NotifyPropertyChanged("AvailableTutoringSessions");
NotifyPropertyChanged("PlannedTutoringSessions");
}
}
