private async void SaveUnregister(TrainingSession obj)
{
try
{
bool answer = await Application.Current.MainPage.DisplayAlert("Confirmation d'annulation", "Êtes-vous sûr de vouloir vous désinscrire à la session du : " + obj.Date, "Oui", "Non");
if (answer)
{
int userId = int.Parse(Application.Current.Properties["UserId"].ToString());
//Register the user to the training Session in parameter
int delete = TrainingSessionService.SaveUnregister(userId, obj.Id);
if (delete != 0)
{
obj.AvailableSeat += 1;
TrainingSessionService.Update(obj);
ObservableCollection <TrainingSession> trainingSessions = new ObservableCollection <TrainingSession>(TrainingSessionService.GetAllByUserId(userId));
if (trainingSessions != null)
{
Items.Remove(obj);
}
//Event publish to refresh the user's trainings list
Event.GetEvent <SentEventUnregister>().Publish(obj.Id);
Event.GetEvent <RefreshAvailableTrainingSessionsListEvent>().Publish();
await Application.Current.MainPage.DisplayAlert("Confirmation", "Vous êtes désinscrit à la session du : " + obj.Date, "Ok");
}
else
{
//Message d'erreur;
}
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/// <summary>
/// Register a user to a training Session and publish it to add the training to user's trainings list
/// </summary>
/// <param name="obj">The training on which the user would like to register </param>
private async void SaveRegister(PictureTrainingSessionViewModel obj)
{
try
{
// If there is not a single seat available for this training session, we show an alert.
if (obj.AvailableSeat <= 0)
{
await Application.Current.MainPage.DisplayAlert("Aucune place disponible pour cette session.", "", "OK");
return;
}
bool answer = await Application.Current.MainPage.DisplayAlert("Confirmation d'inscription", "Êtes-vous sûr de vouloir vous inscrire à la session du : " + obj.Date, "Oui", "Non");
if (answer)
{
int userId = int.Parse(Application.Current.Properties["UserId"].ToString());
//Register the user to the training Session in parameter
int add = TrainingSessionService.SaveRegister(userId, obj.Id);
if (add != 0)
{
TrainingSession t = new TrainingSession()
{
Id = obj.Id,
AvailableSeat = obj.AvailableSeat,
Date = obj.Date
};
//Update the number of available seats
t.AvailableSeat -= 1;
TrainingSessionService.Update(t);
//Remove the session into the available sessions for the user.
ObservableCollection <TrainingSession> trainingSessions = new ObservableCollection <TrainingSession>(TrainingSessionService.GetAllByUserId(userId));
if (trainingSessions != null)
{
Items.Remove(obj);
}
//Event publish to refresh the user's trainings list
Event.GetEvent <SentEvent>().Publish(obj.Id);
Event.GetEvent <RefreshAvailableTrainingSessionsListEvent>().Publish();
await Application.Current.MainPage.DisplayAlert("Validation", "Vous êtes désormais inscrit à la session du : " + obj.Date, "Ok");
}
else
{
//Message d'erreur;
}
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
private void InitializeItems()
{
LstTrainingSession = TrainingSessionService.GetAllByUserId(int.Parse(Application.Current.Properties["UserId"].ToString()));
Items = new ObservableCollection <TrainingSession>(LstTrainingSession);
}