private void SaveFavourites()
{
PersistenceService.DeleteFavourites().Wait();
var favourites = Predictions.Where(x => x.Favourite)
.Select(x => new FavouriteDTO {
StockId = x.TrainingSession.Stock.GetUniqueId()
}).ToList();
if (favourites.Any())
{
PersistenceService.SaveFavourites(favourites).Wait();
}
}
