猫鼬和node.js，填充并保存在数据库中？

Question

Those are my two schematics for discussions and replies:

Source code for the two schematics

const mongoose = require('mongoose');
const ObjectID = mongoose.Schema.Types.ObjectId;

let discussionSchema = mongoose.Schema({
    title: {type: String, required: true},
    content: {type: String},
    author: {type: ObjectID, required: true, ref: 'User'},
    date: {type: Date, default: Date.now()},
    reply: [{ type: ObjectID, ref: 'Replying' }]
});

let discussionReplyingSchema = mongoose.Schema({
    content: {type: String, required: true},
    author: {type: mongoose.Schema.Types.ObjectId, required: true, ref: 'User'},
    date: {type: Date, default: Date.now()}
});

const Discussion = mongoose.model('Discussion', discussionSchema);
const Replying = mongoose.model('Replying', discussionReplyingSchema);

module.exports = Discussion;
module.exports = Replying;

This is in my controller:

Source code for the controller

replyPost: (req, res) => {
        console.log(req.body);
        let id = req.params.id;
        let replyContent = req.body.replyContent;
        console.log(replyContent);

    }

I am trying to get the logged in user and his reply (as string) and to save it in mongoose database, so I can show it under the current discussion.

That's how the database is right now:

"reply": [],

Any ideas how I can do this?

Answer 1

So the issue isn't in the code you've posted here. The problem starts in details.hbs the POST is missing the 'discussion' object for id.

<form class="form-horizontal" method="POST" action="/discussion/details/{{discussion.id}}">

The next issue I found is that the user object isn't being populated on the Discussion detail. I update the detail controller to use:

  details: (req, res) => {
        let id = req.params.id;

        Discussion.findById(id).populate('author').then(discussion => {
            if (!req.user) {
                res.render('discussion/details', {discussion: discussion, isUserAuthorized: false});
                return;
            }

            let isUserAuthorized = req.user.isAdmin || req.user.isAuthorDiscussion(discussion);
            res.render('discussion/details', {user: req.user, discussion: discussion, isUserAuthorized: isUserAuthorized})
        });

    },