public DiaryCommentService(int commentId, IDiCommentRepository DiCommentRepository)
{
ExceptionHelper.ThrowIfNotId(commentId, "messageCommentId");
_commentId = commentId;
_DiCommentRepository = DiCommentRepository;
//懒加载的Diary获取
_LazyDiaryComment = new Lazy <Data.DiaryComment>(() =>
{
var diarycomment = DiCommentRepository.EnableDiaryComment.Where(m => m.CommentId == commentId).FirstOrDefault();
if (diarycomment == null)
{
throw new ExceptionWithErrorCode(ErrorCode.没有找到对应条目, "日志评论不存在");
}
return(diarycomment);
});
}
public DiaryService(int diaryId, IDiaryRepository diarepository, IDiCommentRepository dicommentRepository)
{
ExceptionHelper.ThrowIfNotId(diaryId, "diaryId");//用来报错的；
_diaryId = diaryId;
_dicommentRepository = dicommentRepository;
_diarepository = diarepository;
//懒加载的Diary获取
//设置懒加载，设置Diary类diary对象的搜索
//我们创建某一个对象需要很大的消耗，而这个对象在运行过程中又不一定用到，
//为了避免每次运行都创建该对象，这时候延迟初始化（也叫延迟实例化）就出场了。
_LazyDiary = new Lazy <Data.Diary>(() =>
{
var diary = _diarepository.EnableDiary.Where(m => m.DiaryId == _diaryId && m.IsDel != true).FirstOrDefault();
if (diary == null)
{
throw new ExceptionWithErrorCode(ErrorCode.没有找到对应条目, "日志不存在");
}
return(diary);
});
}
public DiaryManager(IDiaryRepository diaryRepository, IDiCommentRepository dicommentRepository, IUserManager userManager)
{
_diarepository = diaryRepository;
_dicommentrepository = dicommentRepository;
_userManager = userManager;
}
public DiaryCommentManager(IDiCommentRepository dicommentrepository)
{
_DiCommentRepository = dicommentrepository;
}