在TYPO3 viewHelper中获取数据库记录

<?php
namespace Vendor\Extension\ViewHelpers;

use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;

class GetDatabaseRecordsViewHelper extends AbstractViewHelper
{
    public function initializeArguments()
    {
        $this->registerArgument('table', 'string', 'Database table name', true);
        $this->registerArgument('uid', 'int', 'Record UID', true);
    }

    public function render()
    {
        $table = $this->arguments['table'];
        $uid = $this->arguments['uid'];

        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
            ->getQueryBuilderForTable($table);

        $query = $queryBuilder
            ->select('*')
            ->from($table)
            ->where(
                $queryBuilder->expr()->eq('uid', $queryBuilder->createNamedParameter($uid, \PDO::PARAM_INT))
            )
            ->setMaxResults(1)
            ->execute();

        $record = $query->fetch();

        if ($record) {
            // 处理获取到的数据库记录
            // ...
            return $record;
        }

        return null;
    }
}