public static Lecture GetLectureOrFail(this ILectureRepository _lectureRepository, string name)
{
var lecture = _lectureRepository.Get(name);
if (lecture != null)
{
throw new Exception($"Wyklad o podanej nazwie: {name} istnieje");
}
return(lecture);
}
public LectureDto Get(int id)
{
return(_mapper.Map <LectureDto>(_lectureRepository.Get(id)));
}