src/AppBundle/Controller/Course/CourseSetController.php

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<?php

namespace AppBundle\Controller\Course;

use AppBundle\Common\Paginator;
use Biz\Course\CourseException;
use Biz\Task\Service\TaskService;
use AppBundle\Common\ArrayToolkit;
use Biz\Taxonomy\Service\TagService;
use Biz\Course\Service\CourseService;
use AppBundle\Controller\BaseController;
use Biz\Course\Service\CourseSetService;
use Biz\Taxonomy\Service\CategoryService;
use Symfony\Component\HttpFoundation\Request;

class CourseSetController extends BaseController
{
    public function showAction(Request $request, $id)
    {
        $courseSet = $this->getCourseSetService()->getCourseSet($id);
        $course = $this->getCourseService()->getCourse($courseSet['defaultCourseId']);
        $previewAs = $request->query->get('previewAs');
        if (empty($course)) {
            $this->createNewException(CourseException::NOTFOUND_COURSE());
        }

        $this->getCourseSetService()->hitCourseSet($id);

        return $this->redirect($this->generateUrl('course_show', array('id' => $course['id'], 'previewAs' => $previewAs)));
    }

    public function courseSetsBlockAction(array $courseSets, $view = 'list', $mode = 'default')
    {
        $userIds = array();

        $service = $this->getCourseService();

        $courseSets = array_map(function ($set) use (&$userIds, $service) {
            $set['course'] = $service->getFirstPublishedCourseByCourseSetId($set['id']);
            if (!empty($set['course']['teacherIds']) && is_array($set['course']['teacherIds'])) {
                $userIds = array_merge($userIds, $set['course']['teacherIds']);
            }

            return $set;
        }, $courseSets);

        $users = $this->getUserService()->findUsersByIds($userIds);

        return $this->render("course-set/block/course-block-{$view}.html.twig", array(
            'courseSets' => $courseSets,
            'users' => $users,
            'mode' => $mode,
        ));
    }

    public function favoriteAction($id)
    {
        $success = $this->getCourseSetService()->favorite($id);

        return $this->createJsonResponse($success);