src/Biz/Content/Service/Impl/CommentServiceImpl.php

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<?php

namespace Biz\Content\Service\Impl;

use Biz\BaseService;
use Biz\Content\CommentException;
use Biz\Content\Dao\CommentDao;
use Biz\Content\Service\CommentService;
use Biz\Course\CourseException;
use Biz\Course\Service\CourseService;
use AppBundle\Common\TimeMachine;
use Biz\User\UserException;

class CommentServiceImpl extends BaseService implements CommentService
{
    public function createComment(array $comment)
    {
        $this->checkCommentObjectFields($comment['objectType']);
        $this->checkCommentObjectValue($comment);

        $fields = array();
        $fields['objectType'] = $comment['objectType'];
        $fields['objectId'] = $comment['objectId'];
        $fields['content'] = $comment['content'];
        $fields['userId'] = $this->getCurrentUser()->id;
        $fields['createdTime'] = TimeMachine::time();

        return $this->getCommentDao()->create($fields);
    }

    public function getComment($id)
    {
        return $this->getCommentDao()->get($id);
    }

    public function findComments($objectType, $objectId, $start, $limit)
    {
        $this->checkCommentObjectFields($objectType);
        $this->checkCommentObjectValue(array('objectType' => $objectType, 'objectId' => $objectId));

        return $this->getCommentDao()->findByObjectTypeAndObjectId($objectType, $objectId, $start, $limit);
    }

    public function deleteComment($id)
    {
        $user = $this->getCurrentUser();
        $comment = $this->getComment($id);

        if (empty($comment)) {
            $this->createNewException(CommentException::NOTFOUND_COMMENT());
        }

        if (empty($user)) {
            $this->createNewException(UserException::UN_LOGIN());
        }

        if ($comment['userId'] != $user['id'] && !$user->isAdmin()) {
            $this->createNewException(CommentException::FORBIDDEN_DELETE());
        }