node.js - 在nodejs中获取另一个 Controller 中一个 Controller 的响应

Question

我面临着从另一个 Controller 内的一个 Controller 获取响应的问题。

如何从 getUserAppointmentDetails.js 获取对 respondAppointment.js 文件的响应

   getUserAppointmentDetails.js

   const con = require('./../database_connection');

   exports.getUserAppointmentDetails = function (req, res, next) {
       // const details = req.body;
       con.query('SELECT * from user_appointment_details WHERE id = 1', (err,
   respond) => {
           if (err) throw err;

           res.send({result: respond});
    });
   }


   Another file
   respondAppointment.js

   const con = require('./../database_connection');
   const userDetails = require('./getUserAppointmentDetails');

   exports.respondAppointment = function (req, res, next) {
       const details = req.body;
       con.query('update user_appointment_details SET status = "' + details.status
           + '" WHERE id = ' + details.id,
           (err, respond) => {
           if (err) throw err;

           res.send({result: respond});
    });

    var userData = userDetails.getUserAppointmentDetails(req, res, next);
    }

如果有人有任何想法，请回复。

Answer 1

这里的问题是您在两者中发送响应，但实际上并没有从另一个函数的回调中返回结果。

假设您想要 respondAppointment.js 中的 getUserAppointmentDetails.js 的结果。在 getUserAppointmentDetails.js 和 getUserAppointmentDetails.js 中进行更改，以将值返回给调用函数。

getUserAppointmentDetails.js

 const con = require('./../database_connection');

   exports.getUserAppointmentDetails = function (idToGet) {
       // const details = req.body;
       con.query('SELECT * from user_appointment_details WHERE id = '+idToGet, (err,
   respond) => {
           if (err) throw err;

           return respond;
    });
   }

另一个文件: respondAppointment.js

const con = require('./../database_connection');
   const userDetails = require('./getUserAppointmentDetails');

   exports.respondAppointment = function (req, res, next) {

   const details = req.body;

   var userData = userDetails.getUserAppointmentDetails(details.id);
    console.log(userData);

       con.query('update user_appointment_details SET status = "' + details.status
           + '" WHERE id = ' + details.id,
           (err, respond) => {
           if (err) throw err;

           res.send({result: respond});
    });


    }