feat: manual sorting of additional services

migrations/Version20260804140000.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260804140000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add manual ordering position to additional services';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // The default only backfills existing rows; it is dropped again so the column matches the mapping.
+        $this->addSql('ALTER TABLE additional_service ADD position INT DEFAULT 0 NOT NULL');
+        $this->addSql('ALTER TABLE additional_service ALTER COLUMN position DROP DEFAULT');
+
+        // Seed the positions with the ordering the admin overview used before, so nothing changes
+        // visually until someone actually drags a row.
+        $this->addSql('
+            UPDATE additional_service s
+            JOIN (
+                SELECT id, ROW_NUMBER() OVER (
+                    PARTITION BY accommodation_id
+                    ORDER BY date_from ASC, (price <> 0) ASC, label ASC
+                ) AS rn
+                FROM additional_service
+            ) o ON o.id = s.id
+            SET s.position = o.rn
+        ');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE additional_service DROP position');
+    }
+}