public TripDetailPageViewModel()
{
if (DesignMode.DesignModeEnabled)
{
CurrentTrip = SeedDataFactory.CreateDesignTrip();
CurrentSight = CurrentTrip.Sights[0];
Sights =
new ObservableCollection <Sight>(
CurrentTrip.Sights.OrderBy(s => s.RankInDestination));
BuildSightGroups();
Debug.WriteLine("Debug mode for the model");
}
}
// this is different from Disable, example: during updates where we only want to unload -> reload
// Enable is user intention. Load respects enable, but unload doesn't care
public async void Unload()
{
// This is broken in 14291 - worked in 14273!
//StorageFolder folder = await _extension.GetPublicFolderAsync();
// HACK - temporarily set folder to the Models folder in the package - have put a copy of the SanFranciscoSights.json in there
StorageFolder folder = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFolderAsync("Models");
if (folder == null)
{
return; //nothing to unload
}
// load file from extension package
string fileName = @"SanFranciscoSights.json";
StorageFile file = await folder.GetFileAsync(fileName);
var extensionsTrip = await SeedDataFactory.CreateSampleTrip(file);
var modelService = DataModelServiceFactory.CurrentDataModelService();
var currentTrip = await modelService.LoadTripAsync(AppSettings.LastTripId);
// unload it
lock (_sync)
{
if (Loaded)
{
foreach (var sight in extensionsTrip.Sights)
{
var importedSight = currentTrip.Sights.Single(s => s.Name == sight.Name);
if (!importedSight.IsMySight)
{
modelService.DeleteSightAsync(importedSight);
}
}
// see if package is offline
if (!_extension.Package.Status.VerifyIsOK() && !_extension.Package.Status.PackageOffline)
{
_offline = true;
}
Loaded = false;
}
}
}
public async void CreateTrip()
{
#if !SQLITE
await AppShell.Current.SetBusyAsync("Synchronising");
await SeedDataFactory.LoadDataAsync();
await AppShell.Current.ClearBusyAsync();
#endif
// NOTE: SeedDatafactory sets AppSettings.LastTripId to the trip Id value generated from the Seed Data
AppShell.Current.AddTrip("San Francisco", AppSettings.LastTripId);
AppSettings.HasRun = true;
// the following will launch directly to the detail view of the closest sight
//var parameter = new TripNavigationParameter { TripId = AppSettings.LastTripId, DisplayClosestSight = true }.GetJson();
var parameter = new TripNavigationParameter {
TripId = AppSettings.LastTripId
}.GetJson();
AppShell.Current.NavigateToPage(typeof(TripDetailPage), parameter);
AppShell.Current.Frame?.BackStack.Clear();
}
// this controls loading of the extension
public async Task Load()
{
// if it's not enabled or already loaded, don't load it
if (!Enabled || Loaded)
{
return;
}
// make sure package is OK to load
if (!_extension.Package.Status.VerifyIsOK())
{
return;
}
// Extension is not loaded and enabled - load it
StorageFolder folder = await _extension.GetPublicFolderAsync();
if (folder != null)
{
// load file from extension package
String fileName = @"SanFranciscoSights.json";
StorageFile file = await folder.GetFileAsync(fileName);
var extensionsTrip = await SeedDataFactory.CreateSampleTrip(file);
foreach (var sight in extensionsTrip.Sights)
{
sight.TripId = AppSettings.LastTripId;
}
var dataModelService = DataModelServiceFactory.CurrentDataModelService();
await dataModelService.InsertSights(extensionsTrip.Sights);
}
Loaded = true;
_offline = false;
}
