WorkspaceNewPlaceholderRemovalMigration.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Install\Updates\RowUpdater;
 
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerAwareTrait;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Core\Database\Connection;
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪WorkspaceNewPlaceholderRemovalMigration implements ‪RowUpdaterInterface, LoggerAwareInterface
{
    use LoggerAwareTrait;
 
    public function ‪getTitle(): string
    {
        return 'Scan for new versioned records of workspaces and migrate the placeholder and versioned records into one record.';
    }
 
    public function ‪hasPotentialUpdateForTable(string $tableName): bool
    {
        return BackendUtility::isTableWorkspaceEnabled($tableName);
    }
 
    public function ‪updateTableRow(string $tableName, array $row): array
    {
        $versionState = (int)($row['t3ver_state'] ?? 0);
        if ($versionState === 1) {
            $versionedRecord = $this->‪fetchVersionedRecord($tableName, (int)$row['uid']);
            if ($versionedRecord === null) {
                return $row;
            }
            foreach ($versionedRecord as $fieldName => $value) {
                if (in_array($fieldName, ['uid', 'pid', 'deleted', 't3ver_state', 't3ver_oid'], true)) {
                    continue;
                }
                if ($this->‪isMMField($tableName, (string)$fieldName)) {
                    $this->‪transferMMValues($tableName, (string)$fieldName, (int)$versionedRecord['uid'], (int)$row['uid']);
                    continue;
                }
                $row[$fieldName] = $value;
            }
        } elseif ($versionState === -1) {
            // Delete this row, as it has no use anymore.
            // This is safe to do since the uid of the t3ver_state=1 record is always lower than the -1 one,
            // so the record has been handled already. Rows are always sorted by uid in the row updater.
            $row['deleted'] = 1;
        }
        return $row;
    }
 
    protected function ‪fetchVersionedRecord(string $tableName, int $uid): ?array
    {
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($tableName);
        $queryBuilder->getRestrictions()->removeAll();
        $row = $queryBuilder
            ->select('*')
            ->from($tableName)
            ->where(
                $queryBuilder->expr()->eq('t3ver_state', $queryBuilder->createNamedParameter(-1, ‪Connection::PARAM_INT)),
                $queryBuilder->expr()->eq('t3ver_oid', $queryBuilder->createNamedParameter($uid, ‪Connection::PARAM_INT))
            )
            ->executeQuery()
            ->fetchAssociative();
        return is_array($row) ? $row : null;
    }
 
    protected function ‪isMMField(string $tableName, string $fieldName): bool
    {
        $fieldConfig = ‪$GLOBALS['TCA'][$tableName]['columns'][$fieldName]['config'] ?? null;
        if (!is_array($fieldConfig)) {
            return false;
        }
        if (isset($fieldConfig['MM'])) {
            return true;
        }
        return false;
    }
 
    protected function ‪transferMMValues(string $tableName, string $fieldName, int $originalUid, int $newUid): void
    {
        $fieldConfig = ‪$GLOBALS['TCA'][$tableName]['columns'][$fieldName]['config'] ?? null;
 
        $mmTable = $fieldConfig['MM'];
        $matchMMFields = $fieldConfig['MM_match_fields'] ?? null;
        $matchMMFieldsMultiple = $fieldConfig['MM_oppositeUsage'] ?? null;
        $isOnRightSide = is_array($matchMMFieldsMultiple);
        $relationFieldName = $isOnRightSide ? 'uid_local' : 'uid_foreign';
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($mmTable);
        $queryBuilder->update($mmTable)
            ->set($relationFieldName, $newUid, true, ‪Connection::PARAM_INT)
            ->where(
                $queryBuilder->expr()->eq($relationFieldName, $queryBuilder->createNamedParameter($originalUid, ‪Connection::PARAM_INT))
            );
        if ($matchMMFields) {
            foreach ($matchMMFields as $matchMMFieldName => $matchMMFieldValue) {
                $queryBuilder->andWhere(
                    $queryBuilder->expr()->eq($matchMMFieldName, $queryBuilder->createNamedParameter($matchMMFieldValue))
                );
            }
        }
        $queryBuilder->executeStatement();
    }
}