示例#1
0
        /// <summary>
        /// 验证音乐
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public string ValidateAndCorrectSubmit(Song model, ImageApplication imageApplication)
        {
            if (string.IsNullOrWhiteSpace(model.SongName))
            {
                return("歌曲名称不可为空(不可获取)");
            }
            if (string.IsNullOrWhiteSpace(model.ImageId))
            {
                return("歌曲图片不可为空(不可获取)");
            }
            if (string.IsNullOrWhiteSpace(model.SongArtist))
            {
                return("歌手不可为空(不可获取)");
            }
            if (string.IsNullOrWhiteSpace(model.SongFileName))
            {
                return("歌曲文件名不可为空(不可获取)");
            }
            if (model.Duration < 1)
            {
                return("歌曲时长不正确");
            }
            if (model.SongSize < 1)
            {
                return("歌曲大小不正确");
            }

            /*
             *  Error:一个实体对象不能由多个 IEntityChangeTracker 实例引用。
             *  不能给原Model赋值!!只能给ImageId属性赋值,如果给原Model赋值,因为不同的DbContext,导致EF认为这个Image是新增的,但其实是引用
             *
             *  参考:
             *  http://m.blog.csdn.net/blog/jerry_cool_2010/6922095
             *  http://www.tuicool.com/articles/zEjEJn
             *  http://q.cnblogs.com/q/43962/
             */
            //model.Image = ImageApplication.Find(model.ImageId);
            Image image = imageApplication.FindById(model.ImageId);

            if (image == null)
            {
                return("歌曲不正确(不可获取)");
            }
            else
            {
                //更新引用
                image.ReferenceCount += 1;
                imageApplication.Update(image);
                if (!imageApplication.Commit())
                {
                    return("删除歌曲图片异常");
                }
            }

            return(null);
        }
示例#2
0
 /// <summary>
 /// 验证和修正新增的Banner对象
 /// </summary>
 /// <param name="model"></param>
 /// <returns></returns>
 public string ValidateAndCorrectSubmit(Banner model, ImageApplication imageApplication)
 {
     if (model == null)
     {
         return("服务器接收的数据不正确");
     }
     if (string.IsNullOrWhiteSpace(model.Link))
     {
         return("Banner链接不允许为空");
     }
     if (string.IsNullOrWhiteSpace(model.SourceCode) || string.IsNullOrWhiteSpace(model.HTML))
     {
         return("Banner文本源码不允许为空");
     }
     if (string.IsNullOrWhiteSpace(model.ImageId))
     {
         return("Banner图片不正确");
     }
     if (imageApplication.FindById(model.ImageId) == null)
     {
         return("没有找到正确的Banner图片");
     }
     return(string.Empty);
 }
示例#3
0
        /// <summary>
        /// 验证一篇said是否是有效的said,同时矫正Said的数据
        /// </summary>
        /// <param name="model">要验证的model</param>
        /// <returns>返回null表示验证成功,否则返回验证失败的字符串,用,号分割</returns>
        public string ValidateAndCorrectSubmit(Article model, SongApplication songApplication, ImageApplication imageApplication)
        {
            StringBuilder str = new StringBuilder();

            //防止tag有HTML标签,修正
            if (!string.IsNullOrWhiteSpace(model.STag))
            {
                model.STag = HTMLCommon.HTMLTrim(model.STag);
            }
            //model.Song = SongApplication.Context.GetById(model.SongId);//检索有没有歌曲信息
            if (songApplication.FindById(model.SongId) == null)
            {
                str.Append("歌曲信息不正确(不可获取),");
            }
            if (imageApplication.FindById(model.ImageId) == null)
            {
                str.Append("缩略图信息不正确(不可获取),");
            }

            foreach (var validateResult in model.Validate())
            {
                //validateResult.MemberNames//这个要搞懂怎么用,或许能让提示信息更全一点
                str.Append(validateResult.ErrorMessage + ",");
            }
            if (str.Length > 0)
            {
                str.Length--;//StringBuilder的length可以用于裁剪字符串?
            }
            else
            {
                if (string.IsNullOrEmpty(model.SaidId))
                {
                    //新增
                    if (string.IsNullOrWhiteSpace(model.SName) || FindByFileName(model.SName.Trim()) != null)    //没有文件名或文件名不合法,则生成一个新的文件名
                    {
                        model.SName = FileCommon.CreateFileNameByTime();
                    }
                }
                else
                {
                    //编辑
                    if (string.IsNullOrWhiteSpace(model.SName))
                    {
                        model.SName = FileCommon.CreateFileNameByTime();
                    }
                    else
                    {
                        //从数据库中检索是否存在
                        var SaidIdLists = FindSaidIdByFileName(model.SName).ToList();
                        //文件名重复
                        if (SaidIdLists.Count > 1 && SaidIdLists.IndexOf(model.SaidId) > -1)
                        {
                            model.SName = FileCommon.CreateFileNameByTime();
                        }
                    }
                }
            }

            return(str.Length > 0 ? str.ToString() : null);
        }