try {
            $question = new Question();
            $answer = new Answer();
            foreach ($request->get('questions') as $idnex => $question) {
                $question->book_id = $request->get('bookId');
                $question->question = $question;
                $question->save();
                foreach ($request->get('answers') as $idnex => $answer) {
                    $answer->answer = $answer;
                    $answer->question_id = $question->id;
                    if ($request->has("isCorrect[{$index}]")) {
                        $answer->is_correct = 1;
                    } else {
                        $answer->is_correct = 0;
                    }
                }
            }
        } catch (ModelNotFoundException $e) {

        }