/// <summary>
/// удаление карты
/// </summary>
/// <param name="id">ид карты</param>
/// <returns></returns>
public async Task DeleteCard(long id)
{
using (var db = new DeckContext())
{
var exist = await db.Cards.FindAsync(id);
if (exist != null)
{
var decks = db.Decks.ToList();
foreach (var deck in decks)
{
var cardsIds = new JsonSerializer().Deserialize <List <long> >
(new JsonTextReader
(new StringReader(deck.CardsIds)));
if (cardsIds.Contains(exist.Id))
{
cardsIds.Remove(exist.Id);
deck.CardsIds = cardsIds.SerializeToJson();
}
}
db.Cards.Remove(exist);
await db.SaveChangesAsync();
}
}
}
