chore: delete permission for get ticket categories

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

@@ -1,9 +1,11 @@
 // eslint-disable-next-line import/no-named-as-default
 import Decimal from "decimal.js";
-import { Column, Entity, JoinTable, ManyToMany } from "typeorm";
+import { Column, Entity, JoinTable, ManyToMany, OneToMany } from "typeorm";
 
+import { UsageDiscount } from "./usage-discount.entity";
 import { BaseEntity } from "../../../common/entities/base.entity";
 import { DecimalTransformer } from "../../../common/transformers/decimal.transformer";
+import { Invoice } from "../../invoices/entities/invoice.entity";
 import { SubscriptionPlan } from "../../subscriptions/entities/subscription.entity";
 import { User } from "../../users/entities/user.entity";
 import { DiscountCalculationType, DiscountType } from "../enums/discount-type.enum";
@@ -41,4 +43,10 @@ export class Discount extends BaseEntity {
   @ManyToMany(() => User, (user) => user.discounts, { nullable: true })
   @JoinTable()
   users: User[];
+
+  @OneToMany(() => Invoice, (invoice) => invoice.discount)
+  invoice: Invoice;
+
+  @OneToMany(() => UsageDiscount, (usageDiscount) => usageDiscount.discount)
+  usages: UsageDiscount[];
 }