错误:Route.post()需要回调函数，但有一个[object Undefined] [英] Error: Route.post() requires callback functions but got a [object Undefined]

问题描述

有一个回调函数，不知道为什么它不起作用...我有适当的用户系统，实际上我只是复制了该系统.不知道为什么一个有效，而另一个无效.我已经省略了不相关的代码，并且出于懒惰的目的将作业包含在用户模型文件中.

Has a callback don't know why this isn't working...I have working user system in place and I essentially just copied that system. Don't know why one works and the other doesn't. I've omitted the irrelevant code and included the jobs in the users model file out of laziness.

错误:Route.post()需要回调函数，但得到了[object Undefined]看起来像这行app.post('/postjob'，jobs.createJob);触发错误.

Error: Route.post() requires callback functions but got a [object Undefined] It looks like this line app.post('/postjob', jobs.createJob); triggers the error.

[index.js]
mongoose.connect(uri);
require('./models/users_model.js');
require('./routes/routes.js')(app);

[routes.js]
module.exports = function(app){

    var jobs = require('../controllers/jobs_controller.js');

    app.all('/postjob', function(req, res){
        if (typeof req.session !== 'undefined' && req.session.user) {
            res.redirect('/');
        }
        res.render('pages/login', {msg:req.session.msg});
    });

    app.post('/postjob', jobs.createJob);
}



[jobs_controller.js]
var mongoose = require('mongoose'),
    Job = mongoose.model('Job');

module.exports = function(app){

    exports.createJob = function(req, res){

        var job = new Job({created: Date.now});
        job.set('title', req.body.title);
        job.set('description', req.body.description);
        job.set('hours', req.body.hours);
        job.save(function(err){
            if (err) {
                alert(err);
            }
            else {
                alert('Job Posted Succesfully');
            }
        });

    }

};

[users_models.js]
var mongoose = require('mongoose'),
    Schema = mongoose.Schema;

var UserSchema = new Schema ({
    username: { type: String, unique: true },
    email: String,
    color: String,
    hashed_password: String
});

mongoose.model('User', UserSchema);

var JobSchema = new Schema ({
    created: Date,
    postedBy: String,
    title: String,
    description: String,
    hours: String,
    applicants: String,
    closed: Date
});

mongoose.model('Job', JobSchema);

推荐答案

我认为您的 jobs_controller.js 中存在问题.尝试替换以下代码

I think the problem exists in your jobs_controller.js. Try replacing the below code

module.exports = function(app){

    exports.createJob = function(req, res){

        var job = new Job({created: Date.now});
        job.set('title', req.body.title);
        job.set('description', req.body.description);
        job.set('hours', req.body.hours);
        job.save(function(err){
            if (err) {
                alert(err);
            }
            else {
                alert('Job Posted Succesfully');
            }
        });

    }

};

使用

exports.createJob = function(req, res){

        var job = new Job({created: Date.now});
        job.set('title', req.body.title);
        job.set('description', req.body.description);
        job.set('hours', req.body.hours);
        job.save(function(err){
            if (err) {
                alert(err);
            }
            else {
                alert('Job Posted Succesfully');
            }
        });

    };

，并确保您发送的是响应而不是发出警报.

and also make sure you are sending the response instead of putting alert.

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