61 lines
1.8 KiB
PHP
61 lines
1.8 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Belog\ViewHelpers;
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use Symfony\Component\DependencyInjection\Attribute\Autowire;
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use TYPO3\CMS\Backend\Utility\BackendUtility;
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use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
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use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
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/**
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* ViewHelper to get a username from a backend user id.
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*
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* ```
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* <belog:username uid="{logItem.backendUserUid}" />
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* ```
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*
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* @internal
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*/
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final class UsernameViewHelper extends AbstractViewHelper
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{
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public function __construct(
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#[Autowire(service: 'cache.runtime')]
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private readonly FrontendInterface $usernameRuntimeCache
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) {}
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public function initializeArguments(): void
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{
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$this->registerArgument('uid', 'int', 'Uid of the user', true);
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}
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/**
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* Resolve username from backend user id. Can return empty string if there is no user with that UID.
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*/
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public function render(): string
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{
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$uid = $this->arguments['uid'];
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$cacheIdentifier = 'belog-viewhelper-username_' . $uid;
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if ($this->usernameRuntimeCache->has($cacheIdentifier)) {
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return $this->usernameRuntimeCache->get($cacheIdentifier);
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}
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$username = BackendUtility::getRecord('be_users', $uid)['username'] ?? '';
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$this->usernameRuntimeCache->set($cacheIdentifier, $username);
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return $username;
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}
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}
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