Add a migration to update the background jobs table

Signed-off-by: Joas Schilling <coding@schilljs.com>

appinfo/info.xml

@@ -16,7 +16,7 @@ And in the works for the [coming versions](https://github.com/nextcloud/spreed/m
 
 	]]></description>
 
-	<version>8.0.0-dev.0</version>
+	<version>8.0.0-dev.1</version>
 	<licence>agpl</licence>
 
 	<author>Daniel Calviño Sánchez</author>
@@ -52,6 +52,9 @@ And in the works for the [coming versions](https://github.com/nextcloud/spreed/m
 	</background-jobs>
 
 	<repair-steps>
+		<pre-migration>
+			<step>OCA\Talk\Migration\FixNamespaceInDatabaseTables</step>
+		</pre-migration>
 		<post-migration>
 			<step>OCA\Talk\Migration\CreateHelpCommand</step>
 			<step>OCA\Talk\Migration\ClearResourceAccessCache</step>

lib/Migration/FixNamespaceInDatabaseTables.php

@@ -0,0 +1,71 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2019 Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Talk\Migration;
+
+
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class FixNamespaceInDatabaseTables implements IRepairStep {
+
+	/** @var IDBConnection */
+	protected $connection;
+
+	public function __construct(IDBConnection $connection) {
+		$this->connection = $connection;
+	}
+
+	public function getName(): string {
+		return 'Fix the namespace in database tables';
+	}
+
+	public function run(IOutput $output): void {
+		$update = $this->connection->getQueryBuilder();
+		$update->update('jobs')
+			->set('class', $update->createParameter('newClass'))
+			->where($update->expr()->eq('id', $update->createParameter('id')));
+
+		$query = $this->connection->getQueryBuilder();
+		$query->select('id', 'class')
+			->from('jobs')
+			->where($query->expr()->like('class', $query->createNamedParameter(
+				'%' . $this->connection->escapeLikeParameter('Spreed'). '%'
+			)));
+
+		$result = $query->execute();
+		while ($row = $result->fetch()) {
+			$oldClass = $row['class'];
+			if (strpos($oldClass, 'OCA\\Spreed\\') !== 0) {
+				continue;
+			}
+
+			$newClass = 'OCA\\Talk\\' . substr($oldClass, strlen('OCA\\Spreed\\'));
+
+			$update->setParameter('newClass', $newClass)
+				->setParameter('id', $row['id']);
+			$update->execute();
+		}
+		$result->closeCursor();
+	}
+}