generate code

src/modules/coupons/entities/coupon.entity.ts

@@ -1,4 +1,4 @@
-import { Entity, ManyToOne, Property, Enum } from '@mikro-orm/core';
+import { Entity, ManyToOne, Property, Enum, Unique } from '@mikro-orm/core';
 import { BaseEntity } from '../../../common/entities/base.entity';
 import { Restaurant } from '../../restaurants/entities/restaurant.entity';
 
@@ -8,11 +8,12 @@ export enum CouponType {
 }
 
 @Entity({ tableName: 'coupons' })
+@Unique({ properties: ['code', 'restaurant'] })
 export class Coupon extends BaseEntity {
   @ManyToOne(() => Restaurant)
   restaurant!: Restaurant;
 
-  @Property({ unique: true })
+  @Property()
   code!: string;
 
   @Property()