@wearesage/schema/examples/ecommerce/CartItem.ts

A flexible schema definition and validation system for TypeScript with multi-database support

import "reflect-metadata";
import { ManyToOne, Entity, Id, Property } from "../..";
import { Cart } from "./Cart";
import { Product } from "./Product";

/**
 * Each CartItem belongs to exactly one Cart,
 * and references exactly one Product.
 */
@Entity()
export class CartItem {
  @Id()
  id: string;

  @Property({ required: true, default: 1 })
  quantity: number;

  @ManyToOne({
    target: () => Cart,
    inverse: "items",
    name: "IN_CART",
  })
  cart: Cart;

  @ManyToOne({
    target: () => Product,
    inverse: "cartItems",
    name: "CART_REFERENCES_PRODUCT",
  })
  product: Product;
}