internal void RemoveFoodSpecialDate(Guid?foodid, specialdate sd)
{
food food = db.food.Find(foodid);
food.specialdate.Remove(sd);
db.SaveChanges();
}
public void UpdatePosition(food food)
{
int nextPosition = food.position.Value;
food curFood = food;
while (db.food.Any(x => x.position == nextPosition && x.categoryid == curFood.categoryid && x.id != curFood.id))
{
IEnumerable <food> foods = db.food.Where(x => x.position == nextPosition && x.categoryid == curFood.categoryid && x.id != curFood.id);
foreach (var item in foods)
{
item.position++;
}
db.SaveChanges();
nextPosition++;
curFood = db.food.FirstOrDefault(x => x.position == nextPosition && x.categoryid == curFood.categoryid);
}
;
}