ext_localconf.php

<?php
/***************************************************************
 *  Copyright notice
 *
 *  (c) sgalinski Internet Services (https://www.sgalinski.de)
 *
 *  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 3 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.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

call_user_func(
	static function () {
		// add upgrade wizard for moving all db entries to their respected siteroot
		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update'][\SGalinski\SgMail\Updates\UpdatePidToSiteRoot::IDENTIFIER] = \SGalinski\SgMail\Updates\UpdatePidToSiteRoot::class;
		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update'][\SGalinski\SgMail\Updates\UpdateSendingTimes::IDENTIFIER] = \SGalinski\SgMail\Updates\UpdateSendingTimes::class;
		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update'][\SGalinski\SgMail\Updates\UpdateLanguages::IDENTIFIER] = \SGalinski\SgMail\Updates\UpdateLanguages::class;
		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update'][\SGalinski\SgMail\Updates\UpdateGermanAsDefault::IDENTIFIER] = \SGalinski\SgMail\Updates\UpdateGermanAsDefault::class;
		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update'][\SGalinski\SgMail\Updates\MigrateSchedulerTasks::IDENTIFIER] = \SGalinski\SgMail\Updates\MigrateSchedulerTasks::class;

		if (TYPO3_MODE === 'BE') {
			\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTypoScriptSetup(
				'@import "EXT:sg_mail/Configuration/TypoScript/setup.typoscript"'
			);
		}

		// register xclasses
		$GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][\TYPO3\CMS\Form\Controller\FormEditorController::class] = [
			'className' => \SGalinski\SgMail\XClass\Form\FormEditorController::class,
		];

		$GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][\TYPO3\CMS\Form\Controller\FormManagerController::class] = [
			'className' => \SGalinski\SgMail\XClass\Form\FormManagerController::class,
		];

		// Datamap process hook
		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass'][] = \SGalinski\SgMail\Hooks\ProcessDatamap::class;

		// Cache registration
		$registerService = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
			\SGalinski\SgMail\Service\RegisterService::class
		);
		$registerService->registerCache();
	}
);