public bool MatchdayExist(int matchdayId)
{
return(Matchdays.Any(x => x.Id == matchdayId));
}
public Matchday GetMatchdayById(int id)
{
return(Matchdays.Find(id));
}
public void RemoveMatchday(Matchday matchday)
{
Matchdays.Remove(matchday);
}
public void CreateMatchday(Matchday matchday)
{
Matchdays.Add(matchday);
SaveChanges();
}