feat: migrate preview_generation.id column to bigint

appinfo/info.xml

@@ -15,7 +15,7 @@ The first time you install this app, before using a cron job, you properly want
 
 **Important**: To enable pre-generation of previews you must add **php /var/www/nextcloud/occ preview:pre-generate** to a system cron job that runs at times of your choosing.]]>
 	</description>
-	<version>5.12.0-dev.1</version>
+	<version>5.12.0-dev.2</version>
 	<licence>agpl</licence>
 	<author>Richard Steinmetz</author>
 	<namespace>PreviewGenerator</namespace>

lib/Migration/Version051200Date20251109132659.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Richard Steinmetz
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\PreviewGenerator\Migration;
+
+use Closure;
+use Doctrine\DBAL\Types\Type;
+use Doctrine\DBAL\Types\Types;
+use OCP\DB\ISchemaWrapper;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+use Override;
+
+class Version051200Date20251109132659 extends SimpleMigrationStep {
+	/**
+	 * @param Closure(): ISchemaWrapper $schemaClosure
+	 */
+	#[Override]
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		$table = $schema->getTable('preview_generation');
+		$idColumn = $table->getColumn('id');
+		$bigintType = Type::getType(Types::BIGINT);
+		if ($idColumn->getType() !== $bigintType) {
+			$idColumn->setType($bigintType);
+		}
+
+		return $schema;
+	}
+}