server/app/model/trade/cart.js

'use strict';
const Schema = require('mongoose').Schema;
const metaPlugin = require('naf-framework-mongoose-free/lib/model/meta-plugin');

// 购物车
const cart = {
  customer: { type: String, required: false, zh: '顾客', ref: 'User.User' }, //
  shop: { type: String, required: false, zh: '店铺', ref: 'Shop.Shop' }, //
  goods: { type: String, required: false, zh: '商品', ref: 'Shop.Goods' }, //
  goodsSpec: { type: String, required: false, zh: '商品规格', ref: 'Shop.GoodsSpec' }, //
  num: { type: Number, required: false, zh: '数量' }, //
};
const schema = new Schema(cart, { toJSON: { getters: true, virtuals: true } });
schema.index({ id: 1 });
schema.index({ 'meta.createdAt': 1 });
schema.index({ customer: 1 });
schema.index({ shop: 1 });
schema.index({ goods: 1 });
schema.index({ goodsSpec: 1 });

schema.plugin(metaPlugin);

module.exports = app => {
  const { mongoose } = app;
  return mongoose.model('Cart', schema, 'cart');
};