// атрибуты Diet добавить при изминении update diet
public static void UpdateDiet(this Diet newdiet, int[] arr)
{
using (var db = new GoodFit())
{
Diet diet = db.Diet.FirstOrDefault(j => j.Id == newdiet.Id);
diet.Name = newdiet.Name;
diet.Subscription = newdiet.Subscription;
diet.Description = newdiet.Description;
if (arr.Length == 0)
{
db.Diet.FirstOrDefault(j => j.Id == newdiet.Id).Dish.Clear();
db.SaveChanges();
return;
}
foreach (var item in diet.Dish.ToList())
{
if (arr.Contains(item.id))
{
}
else
{
db.Diet.FirstOrDefault(j => j.Id == newdiet.Id).Dish.Remove(db.Dish.FirstOrDefault(i => i.id == item.id));
}
}
db.SaveChanges();
diet.AddDishes(arr);
db.SaveChanges();
}
//db.Entry(diet).State = EntityState.Modified;
//diet.Dish.Clear();
// db.Diet.FirstOrDefault(j => j.Id == diet.Id)
}