Fix Powermail convertor for records with sys_language_uid>0 and l18n_parent=0

FormConverterService.php

<?php
namespace DmitryDulepov\PowermailConversionFix\Xclass;
/***************************************************************
*  Copyright notice
*
*  (c) 2016 Dmity Dulepov <dmitry.dulepov@gmail.com>
*  All rights reserved
*
*  This script is part of the TYPO3 project. The TYPO3 project is
*  free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  The GNU General Public License can be found at
*  http://www.gnu.org/copyleft/gpl.html.
*
*  This script is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
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*  This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/

use In2code\Powermail\Domain\Model\Form;
use In2code\Powermail\Utility\BackendUtility;
use In2code\Powermail\Utility\ObjectUtility;
use In2code\Powermail\Utility\TemplateUtility;

/**
 * There is a bug in the EXT:powermail that creates corrupted forms when converting from
 * v1 to v2 if sys_language_uid>0 but l18n_mode=0 (separate localization for content
 * elements). This XCLASS solves the issue.
 */
class FormConverterService extends \In2code\Powermail\Domain\Service\FormConverterService {
    /**
     * Create Form Record
     *
     * @param array $form
     * @param int $formCounter
     * @return int $formUid
     */
    protected function createFormRecord($form, $formCounter)
    {
        $formProperties = [
            'uid' => 0,
            'pid' =>
                ($this->configuration['save'] === '[samePage]' ? $form['pid'] : (int) $this->configuration['save']),
            'title' => $form['tx_powermail_title'],
            'pages' => $form['tx_powermail_fieldsets'],
            'cruser_id' => BackendUtility::getPropertyFromBackendUser(),
            'hidden' => $form['hidden'],
            'crdate' => time(),
            'tstamp' => time()
        ];
        // Fix is on the line below
        if ($form['sys_language_uid'] > 0 && isset($this->localizationRelations['form'][$form['l18n_parent']])) {
            $formProperties['sys_language_uid'] = $form['sys_language_uid'];
            $formProperties['l10n_parent'] = (int) $this->localizationRelations['form'][$form['l18n_parent']];
        }
        if (!$this->isDryrun()) {
            ObjectUtility::getDatabaseConnection()->exec_INSERTquery(Form::TABLE_NAME, $formProperties);
            $formProperties['uid'] = ObjectUtility::getDatabaseConnection()->sql_insert_id();
            $this->localizationRelations['form'][$form['uid']] = $formProperties['uid'];
        }
        $this->result[$formCounter] = $formProperties;

        // create pages
        $pageCounter = 0;
        foreach ((array) $form['_fieldsets'] as $page) {
            $this->createPageRecord($form, $page, $formProperties['uid'], $formCounter, $pageCounter);
            $pageCounter++;
        }
        return $formProperties['uid'];
    }

    /**
     * Create FlexForm
     *
     * @param array $form
     * @param int $formUid Form that was created before
     * @return string
     */
    protected function createFlexForm($form, $formUid)
    {
        $form['tx_powermail_thanks'] = $this->rewriteVariables($form['tx_powermail_thanks'], $form, true);
        $form['tx_powermail_mailsender'] = $this->rewriteVariables($form['tx_powermail_mailsender'], $form, true);
        $form['tx_powermail_mailreceiver'] = $this->rewriteVariables($form['tx_powermail_mailreceiver'], $form, true);
        $form['tx_powermail_recipient'] = $this->rewriteVariables($form['tx_powermail_recipient'], $form);
        $form['tx_powermail_subject_r'] = $this->rewriteVariables($form['tx_powermail_subject_r'], $form);
        $form['tx_powermail_subject_s'] = $this->rewriteVariables($form['tx_powermail_subject_s'], $form);
        // Fix is on the line below
        if ($form['sys_language_uid'] > 0 && isset($this->localizationRelations['form'][$form['l18n_parent']])) {
            $formUid = (int) $this->localizationRelations['form'][$form['l18n_parent']];
        }

        $standaloneView = TemplateUtility::getDefaultStandAloneView();
        $standaloneView->getRequest()->setControllerName('Module');
        $standaloneView->setTemplatePathAndFilename(TemplateUtility::getTemplatePath('Module/ConverterFlexForm.xml'));
        $standaloneView->assignMultiple(
            [
                'formUid' => $formUid,
                'form' => $form,
                'configuration' => $this->configuration
            ]
        );

        return $standaloneView->render();
    }
}