added comment field to invoice (#3045)

src/Migrations/Version20211230163612.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace DoctrineMigrations;
+
+use App\Doctrine\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * @version 1.17
+ */
+final class Version20211230163612 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Adds the comment column to the invoices table.';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $invoices = $schema->getTable('kimai2_invoices');
+        $invoices->addColumn('comment', 'text', ['notnull' => false]);
+    }
+
+    public function down(Schema $schema): void
+    {
+        $invoices = $schema->getTable('kimai2_invoices');
+        $invoices->dropColumn('comment');
+    }
+}