server/app/service/view/goods.js

'use strict';
const { CrudService } = require('naf-framework-mongoose-free/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const _ = require('lodash');
const assert = require('assert');

//
class GoodsService extends CrudService {
  constructor(ctx) {
    super(ctx, 'goods');
    this.goodsModel = this.ctx.model.Shop.Goods;
    this.goodsSpecModel = this.ctx.model.Shop.GoodsSpec;
  }
  /**
   *
   * @param {Object} query 查询条件
   * @param query.id 商品数据id
   */
  async goodsDetail({ id }) {
    const { populate } = this.ctx.service.shop.goods.getRefMods();
    let goods = await this.goodsModel.findById(id, { file: 1, tags: 1, name: 1, shot_brief: 1, brief: 1, send_time: 1, shop: 1 }).populate(populate);
    if (!goods) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '未找到商品数据');
    goods = JSON.parse(JSON.stringify(goods));
    let specs = await this.goodsSpecModel.find({ goods: id, status: '0' }, { sell_money: 1, flow_money: 1, freight: 1, name: 1, num: 1 });
    specs = JSON.parse(JSON.stringify(specs));
    goods = _.omit(goods, [ 'meta', '__v' ]);
    const shop = _.pick(goods.shop, [ 'logo', 'name', 'person', 'phone' ]);
    delete goods.shop;

    // goods: 商品信息; specs:商品规格信息; shop:店铺信息
    const returnData = { goods, specs, shop };

    return returnData;
  }
}

module.exports = GoodsService;