/// <summary>
 /// usuięcie sesji
 /// </summary>
 /// <param name="entity"></param>
 public void Delete(Session entity)
 {
     _sailingDbContext.Entry(entity).State = EntityState.Deleted;
 }
 /// <summary>
 /// usunięcie danych z bazy
 /// </summary>
 /// <param name="entity"></param>
 public void Delete(GPSData entity)
 {
     _sailingDbContext.Entry(entity).State = EntityState.Deleted;
 }