src/AppBundle/Controller/ExerciseController.php

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<?php

namespace AppBundle\Controller;

use Biz\Testpaper\TestpaperException;
use Biz\User\Service\UserService;
use Biz\Course\Service\CourseService;
use Topxia\Service\Common\ServiceKernel;
use Biz\Activity\Service\ActivityService;
use Biz\Question\Service\QuestionService;
use Biz\Testpaper\Service\TestpaperService;
use Symfony\Component\HttpFoundation\Request;
use AppBundle\Common\Exception\ResourceNotFoundException;

class ExerciseController extends BaseController
{
    public function startDoAction(Request $request, $lessonId, $exerciseId)
    {
        $exercise = $this->getTestpaperService()->getTestpaperByIdAndType($exerciseId, 'exercise');
        if (empty($exercise)) {
            $this->createNewException(TestpaperException::NOTFOUND_EXERCISE());
        }

        $activity = $this->getActivityService()->getActivity($lessonId);
        if ($activity['mediaId'] != $exerciseId) {
            //exerciseId not belong to activity(lessonId)
            throw new ResourceNotFoundException('exercise', $exerciseId);
        }

        list($course, $member) = $this->getCourseService()->tryTakeCourse($activity['fromCourseId']);

        $result = $this->getTestpaperService()->startTestpaper($exercise['id'], array('lessonId' => $lessonId, 'courseId' => $course['id']));

        if ('doing' == $result['status']) {
            return $this->redirect($this->generateUrl('exercise_show', array(
                'resultId' => $result['id'],
            )));
        } else {
            return $this->redirect($this->generateUrl('exercise_result_show', array(
                'resultId' => $result['id'],
            )));
        }
    }

    public function doTestAction(Request $request, $resultId)
    {
        $result = $this->getTestpaperService()->getTestpaperResult($resultId);
        if (!$result) {
            $this->createNewException(TestpaperException::NOTFOUND_RESULT());
        }

        list($course, $member) = $this->getCourseService()->tryTakeCourse($result['courseId']);

        $exercise = $this->getTestpaperService()->getTestpaperByIdAndType($result['testId'], 'exercise');
        if (!$exercise) {
            $this->createNewException(TestpaperException::NOTFOUND_EXERCISE());
        }

        $questions = $this->getTestpaperService()->showTestpaperItems($exercise['id'], $result['id']);