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

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<?php

namespace Topxia\Api\Resource;

use Silex\Application;
use AppBundle\Common\ArrayToolkit;
use Topxia\Service\Common\ServiceKernel;
use Symfony\Component\HttpFoundation\Request;

class ThreadManager extends BaseResource
{
    public function question(Application $app, Request $request)
    {
        $courseId = $request->query->get('courseId', 0);
        $start = $request->query->get('start', 5);
        $user = $this->getCurrentUser();

        $course = $this->getCourseService()->getCourse($courseId);
        if (empty($course)) {
            return $this->error('error', '课程信息不存在!');
        }

        if (!$this->getCourseMemberService()->isCourseTeacher($courseId, $user['id'])) {
            return $this->error('error', '您不是老师，不能查看此页面！!');
        }

        $myTeachingCourseCount = $this->getCourseService()->findUserTeachCourseCount(array('userId' => $user['id']), true);

        if (empty($myTeachingCourseCount)) {
            return array(
                'threadCount' => 0,
                'users' => array(),
                'threads' => array(),
            );
        }

        $myTeachingCourses = $this->getCourseService()->findUserTeachCourses(array('userId' => $user['id']), 0, $myTeachingCourseCount, true);

        $conditions = array(
            'courseIds' => array($courseId),
            'type' => 'question',
        );

        $threadCount = $this->getCourseThreadService()->searchThreadCountInCourseIds($conditions);
        $threads = $this->getCourseThreadService()->searchThreadInCourseIds(
            $conditions,
            'posted',
            0,
            500
        );

        $threads = $this->sortThreads($threads, $start);
        $users = $this->getUserService()->findUsersByIds(ArrayToolkit::column($threads, 'userId'));
        $lessons = $this->getTaskService()->findTasksByIds(ArrayToolkit::column($threads, 'taskId'));
        $lessons = ArrayToolkit::index($lessons, 'id');

        foreach ($threads as $key => &$thread) {
            $lesson = empty($lessons[$thread['taskId']]) ? array() : $lessons[$thread['taskId']];
            $lessonTitle = empty($lesson) ? '课程提问' : '课时:'.$lesson['number'].$lesson['title'];
            $thread['lessonTitle'] = $lessonTitle;