private async Task SaveMultimedia(IsolatedStorageFile isoStore, string snapshotDir, IProgress<Tuple<BackupStage, int>> Progress) {
Progress.Report(Tuple.Create(BackupStage.ExternalData, 0));
var snapshotMultimediaDir = Path.Combine(snapshotDir, MultimediaStorageService.MEDIA_FOLDER);
var snapshotDBPath = Path.Combine(snapshotDir, DiversityDataContext.DB_FILENAME);
using (var db = new DiversityDataContext(snapshotDBPath)) {
var totalCount = db.MultimediaObjects.Count();
if (totalCount > 0) {
var reporter = new PercentageReporter<Tuple<BackupStage, int>>(
Progress,
p => Tuple.Create(BackupStage.ExternalData, p),
totalCount);
foreach (var mm in db.MultimediaObjects) {
var descriptor = StorageDescriptor.FromURI(mm.Uri);
if (descriptor.Type == StorageType.CameraRoll) {
using (var content = ImageStore.GetMultimedia(mm.Uri)) {
var mmFilePath = Path.Combine(snapshotMultimediaDir, descriptor.FileName);
using (var targetFile = isoStore.CreateFile(mmFilePath)) {
await content.CopyToAsync(targetFile);
descriptor.Type = StorageType.IsolatedStorage;
mm.Uri = descriptor.ToString();
}
}
}
reporter.Completed++;
}
db.SubmitChanges();
}
}
}
internal static IQueryable<IdentificationUnitAnalysis> Analyses(IdentificationUnit iu, DiversityDataContext ctx)
{
return from a in ctx.IdentificationUnitAnalyses
where a.UnitID == iu.UnitID
select a;
}
internal static IQueryable<MultimediaObject> Multimedia(IMultimediaOwner owner, DiversityDataContext ctx)
{
return from mmo in ctx.MultimediaObjects
where mmo.OwnerType == owner.EntityType && mmo.RelatedId == owner.EntityID
select mmo;
}
internal static IQueryable<IdentificationUnit> Units(Specimen s, DiversityDataContext ctx)
{
return from iu in ctx.IdentificationUnits
where iu.SpecimenID == s.SpecimenID
select iu;
}
internal static IQueryable<IdentificationUnit> SubUnits(IdentificationUnit u, DiversityDataContext ctx)
{
return from iu in ctx.IdentificationUnits
where iu.RelatedUnitID == u.UnitID
select iu;
}
internal static IQueryable<EventProperty> Properties(Event ev, DiversityDataContext ctx)
{
return from p in ctx.EventProperties
where p.EventID == ev.EventID
select p;
}
internal static IQueryable<Specimen> Specimen(Event ev, DiversityDataContext ctx)
{
return from s in ctx.Specimen
where s.EventID == ev.EventID
select s;
}
internal static IQueryable<Localization> GeoPoints(EventSeries es, DiversityDataContext ctx)
{
return from gp in ctx.GeoTour
where gp.RelatedID == es.SeriesID
select gp;
}
internal static IQueryable<Event> Events(EventSeries es, DiversityDataContext ctx)
{
return from ev in ctx.Events
where ev.SeriesID == es.SeriesID
select ev;
}
internal static IQueryable<GeoPointForSeries> GeoPoints(EventSeries es, DiversityDataContext ctx)
{
return from gp in ctx.GeoTour
where gp.SeriesID == es.SeriesID
select gp;
}