api/src/Topxia/Api/Resource/Homework.php

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<?php

namespace Topxia\Api\Resource;

use Silex\Application;
use AppBundle\Common\ArrayToolkit;
use Symfony\Component\HttpFoundation\Request;
use Biz\Course\Service\CourseService;

class Homework extends BaseResource
{
    public function get(Application $app, Request $request, $id)
    {
        $idType = $request->query->get('_idType');
        if ('lesson' == $idType) {
            $task = $this->getTaskService()->getTask($id);
            $course = $this->getCourseService()->getCourse($task['courseId']);

            if (CourseService::DEFAULT_COURSE_TYPE != $course['courseType']) {
                return $this->error('404', '该作业不存在!');
            }

            //只为兼容移动端学习引擎2.0以前的版本，之后需要修改
            $conditions = array(
                'categoryId' => $task['categoryId'],
                'status' => 'published',
                'type' => 'homework',
            );
            $homeworkTasks = $this->getTaskService()->searchTasks($conditions, null, 0, 1);
            if (!$homeworkTasks) {
                return $this->error('404', '该作业不存在!');
            }
            $homeworkTask = $homeworkTasks[0];

            $activity = $this->getActivityService()->getActivity($homeworkTask['activityId']);
            $homework = $this->getTestpaperService()->getTestpaperByIdAndType($activity['mediaId'], $activity['mediaType']);
        } else {
            $homework = $this->getTestpaperService()->getTestpaperByIdAndType($id, 'homework');
        }

        if (empty($homework)) {
            return $this->error('404', '该作业不存在!');
        }

        $canTakeCourse = $this->getCourseService()->canTakeCourse($homework['courseId']);
        if (!$canTakeCourse) {
            return $this->error('500', '无权限访问!');
        }

        $course = $this->getCourseService()->getCourse($homework['courseId']);
        $homework['courseTitle'] = $course['title'];
        $homework['lessonTitle'] = $homework['name'];
        $homework['lessonId'] = $id;

        if ('lesson' != $idType) {
            $items = $this->getTestpaperService()->findItemsByTestId($homework['id']);
            $indexdItems = ArrayToolkit::column($items, 'questionId');
            $questions = $this->getQuestionService()->findQuestionsByIds($indexdItems);
            $questions = ArrayToolkit::orderByArray($questions, $indexdItems);
            $homework['items'] = $this->filterItem($questions, null, 0, 0);