public IActionResult Index() { ViewData["isLogin"] = _sessionDao.GetUsername(Logic.Logic.GetSessionId(Request)) != null; var sessionId = Logic.Logic.GetSessionId(Request); var title = Logic.Logic.GetValue(Request, "title"); var content = Logic.Logic.GetValue(Request, "body"); var tags = Logic.Logic.GetValue(Request, "tags"); var username = _sessionDao.GetUsername(sessionId); var user = (User)_userDao.GetUserByUsername(username); if (user == null) { return(RedirectToAction("Index", "Login")); } if (title != null && content != null && tags != null) { var ts = tags.Split(' '); var questionId = _questionDao.CreateQuestion(title, content, user.Id); foreach (string tagtmp in ts) { if (_tagDao.GetTag(tagtmp) == null) { //create tag _tagDao.CreatTag(tagtmp); } //get tagId var tag = (Tag)_tagDao.GetTag(tagtmp); var tagId = tag.Id; //create question tag _tagQuestionDao.CreateTagQuestion(questionId, tagId); } } else if (Request.Method == "POST") { ViewData["errorAddQuestion"] = "title and body are requirement"; } return(View()); }