add: bill module

src/modules/bills/entities/bill.entity.ts

@@ -0,0 +1,22 @@
+import { Cascade, Collection, Entity, EntityRepositoryType, Enum, ManyToOne, OneToMany } from "@mikro-orm/core";
+
+import { BaseEntity } from "../../../common/entities/base.entity";
+import { Business } from "../../businesses/entities/business.entity";
+import { Invoice } from "../../invoices/entities/invoice.entity";
+import { BillType } from "../enums/bill-type.enum";
+import { BillsRepository } from "../repositories/bill.repository";
+
+@Entity({ repository: () => BillsRepository })
+export class Bill extends BaseEntity {
+
+    @Enum({ items: () => BillType })
+    type: BillType;
+
+    @ManyToOne(() => Business, { nullable: false, deleteRule: "cascade" })
+    business!: Business;
+
+    @OneToMany(() => Invoice, (invoice) => invoice.bill, { cascade: [Cascade.PERSIST, Cascade.REMOVE], orphanRemoval: true })
+    invoices = new Collection<Invoice>(this);
+
+    [EntityRepositoryType]?: BillsRepository;
+}