RedirectExtractionUpdate.php

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<?php
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\Utility\ExtensionManagementUtility;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪RedirectExtractionUpdate extends ‪AbstractDownloadExtensionUpdate
{
    protected ‪$extension;
 
    protected ‪$confirmation;
 
    public function ‪__construct()
    {
        $this->extension = new ‪ExtensionModel(
            'rdct',
            'Redirects based on &RDCT parameter',
            '1.0.0',
            'friendsoftypo3/rdct',
            'The extension provides redirects based on "cache_md5params" and the GET parameter &RDCT for extensions that still rely on it.'
        );
 
        $this->confirmation = new ‪Confirmation(
            'Are you sure?',
            'You should install the Redirects extension only if needed. ' . $this->extension->getDescription(),
            false
        );
    }
 
    public function ‪getConfirmation(): ‪Confirmation
    {
        return ‪$this->confirmation;
    }
 
    public function ‪getIdentifier(): string
    {
        return 'rdctExtension';
    }
 
    public function ‪getTitle(): string
    {
        return 'Install extension "rdct" from TER if DB table cache_md5params is filled';
    }
 
    public function ‪getDescription(): string
    {
        return 'The extension "rdct" includes redirects based on the GET parameter &RDCT. The functionality has been extracted to'
               . ' the TYPO3 Extension Repository. This update downloads the TYPO3 extension from the TER.'
               . ' Use this if you are dealing with extensions in the instance that rely on this kind of redirects.';
    }
 
    public function ‪updateNecessary(): bool
    {
        return !‪ExtensionManagementUtility::isLoaded('rdct') && $this->‪checkIfWizardIsRequired();
    }
 
    protected function ‪checkIfWizardIsRequired(): bool
    {
        $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
        $connection = $connectionPool->getConnectionByName('Default');
        $tableNames = $connection->getSchemaManager()->listTableNames();
        if (in_array('cache_md5params', $tableNames, true)) {
            // table is available, now check if there are entries in it
            $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
                ->getQueryBuilderForTable('cache_md5params');
            $numberOfEntries = $queryBuilder->count('*')
                ->from('cache_md5params')
                ->execute()
                ->fetchColumn();
            return (bool)$numberOfEntries;
        }
 
        return false;
    }
 
    public function ‪getPrerequisites(): array
    {
        return [
            DatabaseUpdatedPrerequisite::class
        ];
    }
}