NestJS/Mongoose - 引用另一个架构创建对象数组

Question

我正在构建个人应用程序的后端，并且我有两个特定的模型/模式。一个用于产品，另一个用于订单。我想做以下事情：

订单需要具有以下结构的数组：

products: [
  {
    product: string;
    quantity: number;
  }
]

产品应该是ObjectIdmongo，这需要“产品”模型的参考。

我怎样才能达到这个目标？我真的不知道如何用装饰器“输入”它@Prop()。

@Prop({
    // HOW I DO THIS?
})
products: [{ quantity: number; product: mongoose.Types.ObjectId }];

这是我的订单架构：

import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
import * as mongoose from 'mongoose';
import { Document } from 'mongoose';

export type OrderDocument = Order & Document;

@Schema()
export class Order {
  @Prop({ type: String, required: true })
  name: string;

  @Prop({ type: Number, min: 0, required: true })
  total: number;

  @Prop({
    type: String,
    default: 'PENDING',
    enum: ['PENDING', 'IN PROGRESS', 'COMPLETED'],
  })
  status: string;

  @Prop({
    // HOW I DO THIS?
  })
  products: [{ quantity: number; product: mongoose.Types.ObjectId }];

  @Prop({
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Customer',
    required: true,
  })
  customer: mongoose.Types.ObjectId;

  @Prop({
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
    required: true,
  })
  owner: mongoose.Types.ObjectId;

  @Prop({ type: Date, default: Date.now() })
  createdAt: Date;
}

export const OrderSchema = SchemaFactory.createForClass(Order);

Answer 1

@Prop({
    type:[{quantity:{type:Number}, product:{type:Schema.Types.ObjectId}}]
  })
  products: { quantity: number; product: Product }[];