public void RemoveAdvertisementAndSaveAllChanges(Advertisement advertisement)
{
if (Advertisements.All(adv => adv.IdAdvertisement != advertisement.IdAdvertisement))
{
throw new RepositoryHasNotThisItemException();
}
advertisements.Remove(advertisement);
}
public Advertisement CreateAdvertisement(Advertisement advertisement)
{
if (advertisement.IdAdvertisement != 0)
{
throw new CreatedObjectIsNotEmptyException();
}
advertisement.IdAdvertisement = advertisements.Count;
advertisements.Add(advertisement);
return advertisement;
}
public Advertisement CreateAdvertisement(Advertisement advertisement)
{
if (advertisement.IdAdvertisement != 0)
{
throw new CreatedObjectIsNotEmptyException();
}
db.Advertisements.Add(advertisement);
db.SaveChanges();
return advertisement;
}
