src/AppBundle/Controller/Course/CourseBaseController.php

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<?php

namespace AppBundle\Controller\Course;

use Biz\Course\CourseException;
use Biz\Course\CourseSetException;
use Biz\Course\Service\CourseService;
use Biz\Course\Service\MemberService;
use Biz\Course\Service\CourseSetService;
use Biz\Taxonomy\Service\TagService;
use Symfony\Component\HttpFoundation\Request;
use AppBundle\Controller\BaseController;
use AppBundle\Common\ArrayToolkit;

abstract class CourseBaseController extends BaseController
{
    protected function tryGetCourseSetAndCourse($id)
    {
        $course = $this->getCourseService()->getCourse($id);
        if (empty($course)) {
            $this->createNewException(CourseException::NOTFOUND_COURSE());
        }

        $courseSet = $this->getCourseSetService()->getCourseSet($course['courseSetId']);

        if (empty($courseSet)) {
            $this->createNewException(CourseSetException::NOTFOUND_COURSESET());
        }

        return array($courseSet, $course);
    }

    protected function buildCourseLayoutData(Request $request, $courseId)
    {
        $course = $this->getCourseService()->getCourse($courseId);

        if (empty($course)) {
            $this->createNewException(CourseException::NOTFOUND_COURSE());
        }

        $member = $this->getCourseMember($request, $course);

        return array($course, $member);
    }

    protected function tryBuildCourseLayoutData($request, $courseId)
    {
        list($course, $member) = $this->buildCourseLayoutData($request, $courseId);
        $response = null;
        $courseSet = $this->getCourseSetService()->getCourseSet($course['courseSetId']);

        $user = $this->getCurrentUser();

        if (!$user->isLogin()) {
            $response = $this->createMessageResponse('info', '你好像忘了登录哦？', null, 3000, $this->generateUrl('login'));
        }

        if (!$this->getCourseService()->canTakeCourse($course)) {
            $response = $this->createMessageResponse(
                'info',