public void Insert(AppVersion appVersion)
 {
     _repository.Insert(appVersion);
     _repository.Save();
 }
 public void Update(AppVersion appVersion)
 {
     _repository.Update(appVersion);
     _repository.Save();
 }
 public void Delete(AppVersion appVersion)
 {
     _repository.Delete(appVersion);
     _repository.Save();
 }