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Classes/System/Language/FrontendOverlayService.php

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+<?php
+
+namespace WapplerSystems\Meilisearch\System\Language;
+
+/***************************************************************
+ *  Copyright notice
+ *
+ *  (c) 2018 Timo Hund <timo.hund@dkd.de>
+ *  All rights reserved
+ *
+ *  This script is part of the TYPO3 project. The TYPO3 project is
+ *  free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  The GNU General Public License can be found at
+ *  http://www.gnu.org/copyleft/gpl.html.
+ *
+ *  This script is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  This copyright notice MUST APPEAR in all copies of the script!
+ ***************************************************************/
+
+use WapplerSystems\Meilisearch\System\TCA\TCAService;
+use WapplerSystems\Meilisearch\Util;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
+
+/**
+ * Class FrontendOverlayService
+ */
+class FrontendOverlayService {
+
+    /**
+     * @var TCAService
+     */
+    protected $tcaService = null;
+
+    /**
+     * @var TypoScriptFrontendController
+     */
+    protected $tsfe = null;
+
+    /**
+     * Relation constructor.
+     * @param TCAService|null $tcaService
+     * @param TypoScriptFrontendController|null $tsfe
+     */
+    public function __construct(TCAService $tcaService = null, TypoScriptFrontendController $tsfe = null)
+    {
+        $this->tcaService = $tcaService ?? GeneralUtility::makeInstance(TCAService::class);
+        $this->tsfe = $tsfe ?? $GLOBALS['TSFE'];
+    }
+
+    /**
+     * Return the translated record
+     *
+     * @param string $tableName
+     * @param array $record
+     * @return array
+     */
+    public function getOverlay($tableName, $record)
+    {
+        if ($tableName === 'pages') {
+            // @extensionScannerIgnoreLine
+            return $this->tsfe->sys_page->getPageOverlay($record, Util::getLanguageUid());
+        }
+
+        // @extensionScannerIgnoreLine
+        return $this->tsfe->sys_page->getRecordOverlay($tableName, $record, Util::getLanguageUid());
+    }
+
+    /**
+     * When the record has an overlay we retrieve the uid of the translated record,
+     * to resolve the relations from the translation.
+     *
+     * @param string $table
+     * @param string $field
+     * @param int $uid
+     * @return int
+     */
+    public function getUidOfOverlay($table, $field, $uid)
+    {
+        // when no language is set at all we do not need to overlay
+        if (Util::getLanguageUid() === null) {
+            return $uid;
+        }
+        // when no language is set we can return the passed recordUid
+        if (!(Util::getLanguageUid() > 0)) {
+            return $uid;
+        }
+
+        $record = $this->getRecord($table, $uid);
+
+        // when the overlay is not an array, we return the localRecordUid
+        if (!is_array($record)) {
+            return $uid;
+        }
+
+        $overlayUid = $this->getLocalRecordUidFromOverlay($table, $record);
+        $uid = ($overlayUid !== 0) ? $overlayUid : $uid;
+        return $uid;
+    }
+
+    /**
+     * This method retrieves the _PAGES_OVERLAY_UID or _LOCALIZED_UID from the localized record.
+     *
+     * @param string $localTableName
+     * @param array $originalRecord
+     * @return int
+     */
+    protected function getLocalRecordUidFromOverlay($localTableName, $originalRecord)
+    {
+        $overlayRecord = $this->getOverlay($localTableName, $originalRecord);
+
+        // when there is a _PAGES_OVERLAY_UID | _LOCALIZED_UID in the overlay, we return it
+        if ($localTableName === 'pages' && isset($overlayRecord['_PAGES_OVERLAY_UID'])) {
+            return (int)$overlayRecord['_PAGES_OVERLAY_UID'];
+        } elseif (isset($overlayRecord['_LOCALIZED_UID'])) {
+            return (int)$overlayRecord['_LOCALIZED_UID'];
+        }
+
+        return 0;
+    }
+
+    /**
+     * @param $localTableName
+     * @param $localRecordUid
+     * @return mixed
+     */
+    protected function getRecord($localTableName, $localRecordUid)
+    {
+        /** @var QueryBuilder $queryBuilder */
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($localTableName);
+
+        $record = $queryBuilder->select('*')->from($localTableName)->where($queryBuilder->expr()->eq('uid', $localRecordUid))->execute()->fetch();
+        return $record;
+    }
+}