[TASK] Upgrade wizard

Classes/Updates/UpdateLanguages.php

+<?php
+
+namespace SGalinski\SgMail\Updates;
+
+/***************************************************************
+ *  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!
+ ***************************************************************/
+
+use SGalinski\SgMail\Service\BackendService;
+use TYPO3\CMS\Core\Database\DatabaseConnection;
+use TYPO3\CMS\Install\Updates\AbstractUpdate;
+
+/**
+ * Fix all incorrect / deprecated language codes (be languages instead of sys languages) in the database
+ */
+class UpdateLanguages extends AbstractUpdate {
+	/**
+	 * @var string
+	 */
+	protected $title = 'Find all templates & queue entries with an incorrect (be languages instead of sys languages) language code and fix it';
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Object\ObjectManager
+	 */
+	protected $objectManager;
+
+	/**
+	 * @var array
+	 */
+	protected $tables = [
+		'tx_sgmail_domain_model_mail', 'tx_sgmail_domain_model_template'
+	];
+
+	/**
+	 * Checks whether updates are required.
+	 *
+	 * @param string &$description The description for the update
+	 * @return bool Whether an update is required (TRUE) or not (FALSE)
+	 * @throws \InvalidArgumentException
+	 */
+	public function checkForUpdate(&$description) {
+		$upgradeNecessary = FALSE;
+
+		$languages = BackendService::getLanguages();
+		$where = 'language NOT IN (';
+		foreach ($languages as $language) {
+			$where .= '"' . $language['isocode'] . '",';
+		}
+		$where = rtrim($where, ',');
+		$where .= ')';
+
+		$description = 'Check all the language codes in the database';
+
+		/** @var DatabaseConnection $databaseConnection */
+		$databaseConnection = $GLOBALS['TYPO3_DB'];
+
+		foreach ($this->tables as $table) {
+			/** @var \mysqli_result $result */
+			$result = $databaseConnection->exec_SELECTquery('distinct language', $table, $where);
+			if ($result->num_rows > 0) {
+				$upgradeNecessary = TRUE;
+				break;
+			}
+		}
+
+		return !(!$upgradeNecessary || $this->isWizardDone());
+	}
+
+	/**
+	 * Performs the accordant updates.
+	 *
+	 * @param array &$dbQueries Queries done in this update
+	 * @param mixed &$customMessages Custom messages
+	 * @return bool Whether everything went smoothly or not
+	 */
+	public function performUpdate(array &$dbQueries, &$customMessages) {
+		$databaseConnection = $GLOBALS['TYPO3_DB'];
+
+		foreach ($this->tables as $table) {
+
+		}
+
+		$this->markWizardAsDone();
+		return TRUE;
+	}
+}

ext_localconf.php

@@ -38,6 +38,7 @@ $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['extbase']['commandControllers'][] =
 // add upgrade wizard for moving all db entries to their respected siteroot
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update']['tx_sgmail_update_pid_to_site_root'] = \SGalinski\SgMail\Updates\UpdatePidToSiteRoot::class;
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update']['tx_sgmail_update_sending_times'] = \SGalinski\SgMail\Updates\UpdateSendingTimes::class;
+$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update']['tx_sgmail_update_languages'] = \SGalinski\SgMail\Updates\UpdateLanguages::class;
 
 
 if (TYPO3_MODE === 'BE') {