src/Biz/Task/Service/Impl/TaskServiceImpl.php

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<?php

namespace Biz\Task\Service\Impl;

use Biz\BaseService;
use Biz\Common\CommonException;
use Biz\Course\CourseException;
use Biz\Course\Service\MemberService;
use Biz\System\Service\LogService;
use Biz\System\Service\SettingService;
use Biz\Task\Dao\TaskDao;
use Biz\Task\Service\TaskService;
use AppBundle\Common\ArrayToolkit;
use Biz\Course\Service\CourseService;
use Biz\Task\Strategy\CourseStrategy;
use Biz\Task\Service\TaskResultService;
use Biz\Task\TaskException;
use Codeages\Biz\Framework\Event\Event;
use Biz\Course\Service\CourseSetService;
use Biz\Activity\Service\ActivityService;

class TaskServiceImpl extends BaseService implements TaskService
{
    /**
     * @var array
     *            包含序列化字段的学习类型，mediaType
     */
    private static $mediaList = array('video', 'audio', 'doc', 'ppt', 'flash');

    public function getTask($id)
    {
        return $this->getTaskDao()->get($id);
    }

    public function getCourseTask($courseId, $id)
    {
        $task = $this->getTaskDao()->get($id);
        if (empty($task) || $task['courseId'] != $courseId) {
            return array();
        }

        return $task;
    }

    public function getCourseTaskByCourseIdAndCopyId($courseId, $copyId)
    {
        $task = $this->getTaskDao()->getByCourseIdAndCopyId($courseId, $copyId);
        if (empty($task) || $task['courseId'] != $courseId) {
            return array();
        }

        return $task;
    }

    public function preCreateTaskCheck($task)
    {
        $this->getActivityService()->preCreateCheck($task['mediaType'], $task);
    }

    public function createTask($fields)