//ADD public async void AddUpdateTwitterPersistedItem(TwitterPersistedItem item) { LoggingService.LogInformation("writing to db 'Scene'", "AppDatabase.AddUpdateTwitterPersistedItem"); var found = RetrieveTwitterPersistedItem(item.TwitterId); if (found != null && found.Count() > 0) { this.SqliteDb.Update(item); } else { var newId = this.SqliteDb.Insert(item); } Messenger.Default.Send(new GeneralSystemWideMessage("updating ...") { Identifier = "DB", SourceId = "TwitterPersistedItem" }); Messenger.Default.Send(new GeneralSystemWideMessage("") { Identifier = "TWITTER", AggregateId = item.Id.ToString(), Action = "UPDATED" }); }