src/Biz/OpenCourse/Event/OpenCourseEventSubscriber.php

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<?php

namespace Biz\OpenCourse\Event;

use Biz\OpenCourse\OpenCourseException;
use Biz\Taxonomy\TagOwnerManager;
use Codeages\Biz\Framework\Event\Event;
use Codeages\PluginBundle\Event\EventSubscriber;

class OpenCourseEventSubscriber extends EventSubscriber
{
    public static function getSubscribedEvents()
    {
        return array(
            'open.course.update' => 'onCourseUpdate',
            'open.course.delete' => 'onCourseDelete',
            'open.course.lesson.create' => 'onLessonCreate',
            'open.course.lesson.delete' => 'onLessonDelete',
            'open.course.member.create' => 'onMemberCreate',
            'course.material.create' => 'onMaterialCreate',
            'course.material.update' => 'onMaterialUpdate',
            'course.material.delete' => 'onMaterialDelete',
            'live.replay.generate' => 'onLiveReplayGenerate',
        );
    }

    public function onCourseDelete(Event $event)
    {
        $course = $event->getSubject();

        $tagOwnerManager = new TagOwnerManager('openCourse', $course['id']);
        $tagOwnerManager->delete();
    }

    public function onCourseUpdate(Event $event)
    {
        $fields = $event->getSubject();

        $args = $fields['argument'];
        if (!isset($args['tags'])) {
            return;
        }

        $course = $fields['course'];
        $tagIds = $fields['tagIds'];
        $userId = $fields['userId'];

        $tagOwnerManager = new TagOwnerManager('openCourse', $course['id'], $tagIds, $userId);
        $tagOwnerManager->update();
    }

    public function onLessonCreate(Event $event)
    {
        $context = $event->getSubject();
        $lesson = $context['lesson'];

        $course = $this->getOpenCourseService()->getCourse($lesson['courseId'], true);

        if (empty($course)) {
            throw OpenCourseException::NOTFOUND_OPENCOURSE();