保存到数据库只是为了得到一个ID是一个坏的黑客吗?

string uniqueDirectory = System.Guid.NewGuid().ToString("N");
System.IO.Directory.CreateDirectory("..Uploads/"+uniqueDirectory );
//handle upload, save file, errors,  etc..
...
//now that the file is uploaded save to the database
File newFile = new File();
newFile.FolderName=uniqueDirectory;
db.AddFile(newFile);
db.Save();