first commit

typo3/sysext/install/Classes/Updates/FileReferenceUpdate.php

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+<?php
+declare(strict_types = 1);
+namespace TYPO3\CMS\Install\Updates;
+
+/*
+ * 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!
+ */
+
+use TYPO3\CMS\Core\Database\ConnectionPool;
+use TYPO3\CMS\Core\Resource\Exception;
+use TYPO3\CMS\Core\Resource\File;
+use TYPO3\CMS\Core\Resource\ResourceFactory;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\MathUtility;
+
+/**
+ * Migrate file references that are stored in a wrong way to correct scheme
+ * @internal This class is only meant to be used within EXT:install and is not part of the TYPO3 Core API.
+ */
+class FileReferenceUpdate implements UpgradeWizardInterface
+{
+    /**
+     * @return string Unique identifier of this updater
+     */
+    public function getIdentifier(): string
+    {
+        return 'fileReferenceUpdate';
+    }
+
+    /**
+     * @return string Title of this updater
+     */
+    public function getTitle(): string
+    {
+        return 'Migrate file references that are stored in a wrong way to correct scheme';
+    }
+
+    /**
+     * @return string Longer description of this updater
+     */
+    public function getDescription(): string
+    {
+        return 'File references were saved in a wrong way and references are not shown correctly in file list module.';
+    }
+
+    /**
+     * @return bool True if there are records to update
+     */
+    public function updateNecessary(): bool
+    {
+        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_refindex');
+        return (bool)$queryBuilder->count('hash')
+            ->from('sys_refindex')
+            ->where(
+                $queryBuilder->expr()->eq('ref_table', $queryBuilder->createNamedParameter('_FILE', \PDO::PARAM_STR)),
+                $queryBuilder->expr()->eq('softref_key', $queryBuilder->createNamedParameter('typolink_tag', \PDO::PARAM_STR)),
+                $queryBuilder->expr()->eq('deleted', $queryBuilder->createNamedParameter(0, \PDO::PARAM_INT))
+            )
+            ->execute()
+            ->fetchColumn(0);
+    }
+
+    /**
+     * @return string[] All new fields and tables must exist
+     */
+    public function getPrerequisites(): array
+    {
+        return [
+            DatabaseUpdatedPrerequisite::class
+        ];
+    }
+
+    /**
+     * Performs the update
+     *
+     * @return bool
+     */
+    public function executeUpdate(): bool
+    {
+        $connection = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('sys_refindex');
+        $queryBuilder = $connection->createQueryBuilder();
+        $statement = $queryBuilder->select('*')
+            ->from('sys_refindex')
+            ->where(
+                $queryBuilder->expr()->eq('ref_table', $queryBuilder->createNamedParameter('_FILE', \PDO::PARAM_STR)),
+                $queryBuilder->expr()->eq('softref_key', $queryBuilder->createNamedParameter('typolink_tag', \PDO::PARAM_STR)),
+                $queryBuilder->expr()->eq('deleted', $queryBuilder->createNamedParameter(0, \PDO::PARAM_INT))
+            )
+            ->execute();
+        while ($record = $statement->fetch()) {
+            $fileReference = 0;
+            if (MathUtility::canBeInterpretedAsInteger($record['ref_string'])) {
+                $fileReference = $record['ref_string'];
+            } else {
+                try {
+                    $fileObject = ResourceFactory::getInstance()->retrieveFileOrFolderObject($record['ref_string']);
+                    if ($fileObject instanceof File) {
+                        $fileReference = $fileObject->getUid();
+                    }
+                } catch (Exception $e) {
+                    // Silently catch if there is no file object
+                }
+            }
+
+            $updateQueryBuilder = $connection->createQueryBuilder();
+            $updateQueryBuilder->update('sys_refindex')
+                ->where(
+                    $updateQueryBuilder->expr()->eq(
+                        'hash',
+                        $updateQueryBuilder->createNamedParameter($record['hash'], \PDO::PARAM_STR)
+                    )
+                );
+
+            if ($fileReference) {
+                $updateQueryBuilder->set('ref_table', 'sys_file')
+                    ->set('ref_uid', $fileReference)
+                    ->set('ref_string', '');
+            } else {
+                $updateQueryBuilder->set('deleted', 1);
+            }
+
+            $updateQueryBuilder->execute();
+        }
+
+        return true;
+    }
+}