public function actionCreateQuestionLib()
 {
     $question_cat_id = $_REQUEST["question_cat_id"];
     $question_type = $_REQUEST["question_type"];
     $question_text = $_REQUEST["question_text"];
     $question_true = $_REQUEST["answerTrue"];
     $AnswerList = $_REQUEST["answerA"];
     $model = new WQuestionLib();
     $model->question_text = $question_text;
     $model->question_type = $question_type;
     $model->question_cat_id = $question_cat_id;
     $model->status = 1;
     $model->created_by = Yii::app()->user->id;
     $idQuestion = "";
     if ($model->save()) {
         $idQuestion = $model->id;
         if ($question_type != 2) {
             if (!empty($AnswerList)) {
                 //neu la nhieu dap an
                 $dataAnswTrue = array();
                 if ($question_type != 2 and !empty($question_true)) {
                     $dataAnswTrue = explode(",", $question_true);
                     unset($dataAnswTrue[count($dataAnswTrue) - 1]);
                 }
                 foreach ($AnswerList as $key => $itemAns) {
                     $modelAnsw = new WQuestionAnswerLib();
                     $modelAnsw->answer = $itemAns;
                     $modelAnsw->question_id = $idQuestion;
                     if ($question_type != 2) {
                         if (in_array($key, $dataAnswTrue)) {
                             $modelAnsw->is_correct_answer = 1;
                         } else {
                             $modelAnsw->is_correct_answer = 0;
                         }
                     }
                     $modelAnsw->save();
                 }
             }
         }
         echo json_encode(array("result" => "true", "id" => $idQuestion));
     } else {
         echo json_encode(array("result" => "false", "message" => "Lỗi thao tác, Mời bạn thao tác lại"));
     }
 }