Question

我尝试创建一个专用的mongoose createConnection。 Node.js支持：

 MyModel = conn.model('Profile', profileSchema), 

profileSchema is not defined.

但我哪里出错？

＆＃13;

//my db.js

const mongoose = require('mongoose');

const conn = mongoose.createConnection = ("mongodb://localhost:27017/myDatabase"),
    MyModel = conn.model('Profile', profileSchema),
    m = new MyModel;
m.save(); //works; 



if (process.env.NODE_ENV === 'production') {
    conn = process.env.MONGODB_URI;
}

require('./profiles)

＆＃13;

这是模型页面的其余部分：

＆＃13;

// my profile.js

// JavaScript source code
const mongoose = require('mongoose');


const profileSchema = new mongoose.Schema({
    firstName: {
        type: String,
        required: true
    },
    lastName: {
        type: String,
        required: true
    },

   
    });

var MyModel = mongoose.model('Profile', profileSchema);

＆＃13;

Answer 1

您的代码存在许多问题，首先要了解模块在javascript中的工作原理。您需要导出 profileSchema 以便在app.js中使用，它应该是，

const mongoose = require('mongoose');
const profileSchema = new mongoose.Schema({
    firstName: {
        type: String,
        required: true
    },
    lastName: {
        type: String,
        required: true
    },


    });
module.exports = mongoose.model('Profile', profileSchema);

然后需要导入profileSchema，它位于profile中，取决于你的文件路径。

const profileSchema = require('./model/profile.js');

Answer 2

你要做的是

// my profile.js

// JavaScript source code
const mongoose = require('mongoose');


const profileSchema = new mongoose.Schema({
    firstName: {
        type: String,
        required: true
    },
    lastName: {
        type: String,
        required: true
    },


    });

module.exports = mongoose.model('Profile', profileSchema);

并在您的app.js文件中添加如下

const profileInfo= require('./../model/profile.js');

无法找到mongoose架构

2 个答案: