public void DeleteActivity(int StudentId, int ActivityId)
{
StudentsActivities sa = _context.StudentsActivities.Include(a => a.Activity).First(a => a.StudentId == StudentId && a.ActivityId == ActivityId);
Activities ac = sa.Activity;
_context.Remove(sa);
_context.Remove(ac);
_context.SaveChanges();
}
public void RemoveAd(int AdId)
{
var Ad = _context.Ads.Include(a => a.Periods).First(a => a.AdId == AdId);
foreach (var period in Ad.Periods)
{
_context.Remove(period);
}
_context.SaveChanges();
_context.Ads.Remove(Ad);
_context.SaveChanges();
}