9.5/_comparator_8php_source.html

<?php

declare(strict_types = 1);

namespace ‪TYPO3\CMS\Core\Database\Schema;


/*

 * 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 Doctrine\DBAL\Platforms\AbstractPlatform;

use Doctrine\DBAL\Platforms\MySqlPlatform;

use Doctrine\DBAL\Schema\Column;

use Doctrine\DBAL\Schema\Table;

use Doctrine\DBAL\Types;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪Comparator extends \Doctrine\DBAL\Schema\Comparator

{

    protected ‪$databasePlatform;


    public function ‪__construct(AbstractPlatform $platform = null)

    {

        $this->databasePlatform = $platform;

    }


    public function ‪diffTable(Table $fromTable, Table $toTable)

    {

        $newTableOptions = array_merge($fromTable->getOptions(), $toTable->getOptions());

        $optionDiff = array_diff_assoc($newTableOptions, $fromTable->getOptions());

        $tableDifferences = parent::diffTable($fromTable, $toTable);


        // No changed table options, return parent result

        if (count($optionDiff) === 0) {

            return $tableDifferences;

        }


        if ($tableDifferences === false) {

            $tableDifferences = GeneralUtility::makeInstance(TableDiff::class, $fromTable->getName());

            $tableDifferences->fromTable = $fromTable;

        } else {

            $renamedColumns = $tableDifferences->renamedColumns;

            $renamedIndexes = $tableDifferences->renamedIndexes;

            // Rebuild TableDiff with enhanced TYPO3 TableDiff class

            $tableDifferences = GeneralUtility::makeInstance(

                TableDiff::class,

                $tableDifferences->name,

                $tableDifferences->addedColumns,

                $tableDifferences->changedColumns,

                $tableDifferences->removedColumns,

                $tableDifferences->addedIndexes,

                $tableDifferences->changedIndexes,

                $tableDifferences->removedIndexes,

                $tableDifferences->fromTable

            );

            $tableDifferences->renamedColumns = $renamedColumns;

            $tableDifferences->renamedIndexes = $renamedIndexes;

        }


        // Set the table options to be parsed in the AlterTable event.

        $tableDifferences->setTableOptions($optionDiff);


        return $tableDifferences;

    }


    public function ‪diffColumn(Column $column1, Column $column2)

    {

        $changedProperties = parent::diffColumn($column1, $column2);


        // Only MySQL has variable length versions of TEXT/BLOB

        if (!$this->databasePlatform instanceof MySqlPlatform) {

            return $changedProperties;

        }


        $properties1 = $column1->toArray();

        $properties2 = $column2->toArray();


        if ($properties1['type'] instanceof Types\BlobType || $properties1['type'] instanceof Types\TextType) {

            // Doctrine does not provide a length for LONGTEXT/LONGBLOB columns

            $length1 = $properties1['length'] ?: 2147483647;

            $length2 = $properties2['length'] ?: 2147483647;


            if ($length1 !== $length2) {

                $changedProperties[] = 'length';

            }

        }


        return array_unique($changedProperties);

    }

}