chore: discount module

src/modules/discounts/entities/discount.entity.ts

@@ -1,10 +1,11 @@
 // eslint-disable-next-line import/no-named-as-default
 import Decimal from "decimal.js";
-import { Column, Entity, ManyToOne } from "typeorm";
+import { Column, Entity, JoinTable, ManyToMany } from "typeorm";
 
 import { BaseEntity } from "../../../common/entities/base.entity";
 import { DecimalTransformer } from "../../../common/transformers/decimal.transformer";
 import { SubscriptionPlan } from "../../subscriptions/entities/subscription.entity";
+import { User } from "../../users/entities/user.entity";
 import { DiscountCalculationType, DiscountType } from "../enums/discount-type.enum";
 
 @Entity()
@@ -33,6 +34,11 @@ export class Discount extends BaseEntity {
   @Column({ type: "timestamptz" })
   endDate: Date;
 
-  @ManyToOne(() => SubscriptionPlan, { nullable: true, onDelete: "SET NULL" })
-  subscriptionPlan: SubscriptionPlan;
+  @ManyToMany(() => SubscriptionPlan, (subscriptionPlan) => subscriptionPlan.discounts, { nullable: true })
+  @JoinTable()
+  subscriptionPlans: SubscriptionPlan[];
+
+  @ManyToMany(() => User, (user) => user.discounts, { nullable: true })
+  @JoinTable()
+  users: User[];
 }