public void LoadAll()
{
Dishes = _dishRepository.LoadDishes();
Sources = _sourceRepository.LoadSources();
Tags = _tagRepository.LoadTags();
var dishTags = _dishRepository.LoadDishTags();
SortDishes();
SortSources();
SortTags();
foreach (var dish in Dishes)
{
dish.Source = Sources.First(s => s.Id == dish.SourceId);
dish.Tags = dishTags
.Where(dt => dt.DishId == dish.Id)
.Select(dt => Tags.First(t => t.Id == dt.TagId))
.ToList();
}
}