/// <summary>
/// This constructor is used when the goal is to edit an existing travel.
/// </summary>
/// <param name="travel">The travel wanted to be edited.</param>
public AddTravelData(Travel travel)
{
InitializeComponent();
this.IsNewTravel = false;
this.travel.ID = travel.ID;
this.travel.CarLicensePlate = travel.CarLicensePlate;
TravelDate.Date = new DateTime(travel.TravelDate.Year, travel.TravelDate.Month, travel.TravelDate.Day);
StartPoint.Text = travel.StartPoint;
Destination.Text = travel.Destination;
Distance.Text = travel.Distance.ToString();
Title = "Utazás szerkesztése: " + travel.CarLicensePlate;
}
/// <summary>
/// Removes the given item from database and if it succeeded, removes it from the given collection
/// </summary>
/// <param name="list"></param>
/// <param name="item"></param>
void RemoveFromDatabaseAndList(ObservableCollection <Travel> list, Travel item)
{
bool success = false;
try
{
database.Delete <Travel>(item.ID);
success = true;
}
catch (SQLiteException ex)
{
throw ex;
}
finally
{
if (success)
{
list.Remove(item);
}
}
}
/// <summary>
/// Updates an existing travel's data in database based on its ID property.
/// </summary>
/// <param name="travel">Travel to be changed in database.</param>
private void UpdateTravel(Travel travel)
{
database.CreateTable <Travel>();
database.Update(travel);
MessagingCenter.Send(this, "DatabaseOperationSucceeded", travel);
}