order number

database/migrations/Migration20260405052112.ts

@@ -0,0 +1,20 @@
+import { Migration } from '@mikro-orm/migrations';
+
+export class Migration20260405052112 extends Migration {
+
+  override async up(): Promise<void> {
+    this.addSql(`alter table "orders" alter column "order_number" type int using ("order_number"::int);`);
+    this.addSql(`alter table "orders" alter column "order_number" drop default;`);
+    this.addSql(`alter table "orders" add constraint "orders_order_number_unique" unique ("order_number");`);
+  }
+
+  override async down(): Promise<void> {
+    this.addSql(`alter table "orders" drop constraint "orders_order_number_unique";`);
+
+    this.addSql(`alter table "orders" alter column "order_number" type int using ("order_number"::int);`);
+    this.addSql(`create sequence if not exists "orders_order_number_seq";`);
+    this.addSql(`select setval('orders_order_number_seq', (select max("order_number") from "orders"));`);
+    this.addSql(`alter table "orders" alter column "order_number" set default nextval('orders_order_number_seq');`);
+  }
+
+}