public static Basic_Collection ToDatabase(Basic_Collection_Info info)
        {
            Basic_Collection collection = new Basic_Collection();

            collection.Id         = info.Id;
            collection.Title      = info.Title;
            collection.User       = info.User;
            collection.Content    = info.Content;
            collection.Summary    = info.Summary;
            collection.Alter_Time = info.Alter_Time;

            return(collection);
        }
        public static Basic_Collection_Info ToModel(Basic_Collection collection)
        {
            Basic_Collection_Info info = new Basic_Collection_Info();

            info.Id          = collection.Id;
            info.Title       = collection.Title;
            info.User        = (Guid)collection.User;
            info.Content     = collection.Content;
            info.Summary     = collection.Summary;
            info.Cover       = collection.Cover;
            info.Create_Time = (DateTime)collection.Create_Time;
            info.Alter_Time  = (DateTime)collection.Alter_Time;

            return(info);
        }