public MealSuggestions()
{
this.InitializeComponent();
_mealSuggestionViewModel = new MealSuggestionViewModel();
_mealSuggestions = _mealSuggestionViewModel.GetMeals();
MealSuggestionsGridView.ItemsSource = _mealSuggestions;
AcceptMealSuggestions_AppBarButton.IsEnabled = false;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.Parameter != null)
{
if (e.Parameter is MealViewModel)
{
_meal = e.Parameter as MealViewModel;
}
else if (e.Parameter is MealSuggestionViewModel)
{
_mealSuggestion = null;
}
}
}
private void AddMealSuggestions_AppBarButton_Click(object sender, RoutedEventArgs e)
{
_mealSuggestion = new MealSuggestionViewModel();
this.Frame.Navigate(typeof(MealItemsByCategory), _mealSuggestion);
}
private void textBlock_SelectionChanged(object sender, RoutedEventArgs e)
{
if (MealSuggestionsGridView.SelectedItems.Count > 0)
{
AcceptMealSuggestions_AppBarButton.IsEnabled = true;
_mealSuggestion = (MealSuggestionViewModel)MealSuggestionsGridView.SelectedItem;
}
}
public ObservableCollection<IMealViewModel> GetMeals()
{
ObservableCollection<IMealViewModel> mealSuggestions =
new ObservableCollection<IMealViewModel>();
using (var db = new SQLite.SQLiteConnection(App.DBPath))
{
var query = db.Table<MealSuggestion>().OrderBy(c => c.Id);
foreach (var _mealSuggestion in query)
{
var mealSuggestion = new MealSuggestionViewModel()
{
Id = _mealSuggestion.Id,
CategoryId = _mealSuggestion.CategoryId,
MealItemIDsWithWeight =
(Dictionary<float, float>)_dictionaryConverterFloat.ConvertBack(_mealSuggestion.MealItemIDsWithWeight, null, null, "")
};
mealSuggestions.Add(mealSuggestion);
}
}
return mealSuggestions;
}
public IMealViewModel GetMeal(int mealId)
{
var mealSuggestion = new MealSuggestionViewModel();
using (var db = new SQLite.SQLiteConnection(App.DBPath))
{
var _mealSuggestion = (db.Table<MealSuggestion>().Where(
c => c.Id == mealId)).Single();
mealSuggestion.Id = _mealSuggestion.Id;
mealSuggestion.CategoryId = _mealSuggestion.CategoryId;
mealSuggestion.MealItemIDsWithWeight =
(Dictionary<float, float>)_dictionaryConverterFloat.ConvertBack(_mealSuggestion.MealItemIDsWithWeight, null, null, "");
}
return mealSuggestion;
}