update

app/service/trade/orderDetail.js

@@ -3,7 +3,7 @@ const { CrudService } = require('naf-framework-mongoose-free/lib/service');
 const { BusinessError, ErrorCode } = require('naf-core').Error;
 const _ = require('lodash');
 const assert = require('assert');
-
+const { ObjectId } = require('mongoose').Types;
 //
 class OrderDetailService extends CrudService {
   constructor(ctx) {
@@ -48,6 +48,7 @@ class OrderDetailService extends CrudService {
     }
     // await this.model.insertMany(arr);
   }
+
   /**
    * 将商品规格列表中,优惠的部分提取出来,分单用
    * @param {Array} goodsList 某店的商品列表
@@ -77,6 +78,17 @@ class OrderDetailService extends CrudService {
     const freight_total = goodsList.reduce((p, n) => this.ctx.plus(p, this.ctx.multiply(n.freight, n.buy_num)), 0);
     return { goods_total, freight_total };
   }
+
+  async fetch(filter) {
+    assert(filter);
+    filter = await this.beforeFetch(filter);
+    const { _id, id } = filter;
+    if (_id || id) filter = { _id: ObjectId(_id || id) };
+    const { populate } = this.getRefMods();
+    let res = await this.model.findOne(filter).populate(populate).exec();
+    res = await this.afterFetch(filter, res);
+    return res;
+  }
 }
 
 module.exports = OrderDetailService;