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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 MASK\Mask\Migrations;
use MASK\Mask\Definition\TableDefinitionCollection;
/**
* There was a bug in older Mask versions, where inline fields weren't removed
* completely from the configuration. This trait searches and removes such
* orphans, so they won't trash the storage and cause problems in other areas.
*
* See this issue for more details: https://github.com/Gernott/mask/issues/265
*/
class OrphanRemoverMigration implements MigrationInterface
{
public function migrate(TableDefinitionCollection $tableDefinitionCollection): TableDefinitionCollection
{
$candidatesForRemoval = [];
// Find all tables with no tca nor sql definition
foreach ($tableDefinitionCollection as $tableDefinition) {
if (
$tableDefinition->tca->count() === 0
&& $tableDefinition->sql->count() === 0
) {
$candidatesForRemoval[] = $tableDefinition;
}
}
// If there are no candidates, return the definition as is.
if (empty($candidatesForRemoval)) {
return $tableDefinitionCollection;
}
$tablesToRemove = [];
// Check if the candidates are in use in at least one element
foreach ($candidatesForRemoval as $candidate) {
if ($tableDefinitionCollection->getElementsWhichUseField($candidate->table)->count() > 0) {
continue;
}
$tablesToRemove[] = $candidate;
}
// If there are no tables to remove, return the definition as is.
if (empty($tablesToRemove)) {
return $tableDefinitionCollection;
}
// Create a new TableDefinitionCollection and exclude orphan tables
$newTableDefinitionCollection = new TableDefinitionCollection();
foreach ($tableDefinitionCollection as $tableDefinition) {
if (!in_array($tableDefinition, $tablesToRemove, true)) {
$newTableDefinitionCollection->addTable($tableDefinition);
}
}
return $newTableDefinitionCollection;
}
public function forVersionBelow(): string
{
return '7.2.0';
}
}