Can't insert into MongoDB with Mongoose - node.js

Question

I'm trying to insert an object in MongoDB with Mongoose, but without success.
In './models/user,js' I have:
var mongoDatabase = require('./db'); //I've connected to localhost here
var database = mongoDatabase.getDb();
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema = new Schema({
user: String,
adress: String,
});
userSchema.methods.testmethod = function(){
console.log('test');
}
userSchema.methods.insert = function (obj) { //this works but what is the point to use Mongoose If I do it that way
database.collection("users").insertOne(obj, function(err, res) {
if(err) throw err;
console.log("1 record inserted");
});
}
var User = mongoose.model('User', userSchema);
module.exports = User;
In './controllers/user.js'
var express = require('express');
var router = express.Router();
var User = require('../models/user');
router.post("/", function(request, response) {
var obj = new User({
user: request.body.name,
adress: request.body.adress,
});
obj.testmethod(); //works fine
obj.insert(obj); //throws an error
User.insertOne(obj, function(err, res) { //error: insertOne is not a function
if(err) throw err;
console.log("1 record inserted");
});
});
module.exports = router;
I have tried few more ways to do it, but without result. Can someone help me?

Answer 1

You shouldn't be using whatever mongodb object you're creating in './db' to do this work, mongoose takes care of it for you. Try simplifying down to this:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema = new Schema({
user: String,
adress: String,
});
module.exports = mongoose.model('User', userSchema);
Then in your controller code
var express = require('express');
var router = express.Router();
var User = require('../models/user');
router.post("/", function(request, response, next) {
var user = new User({
user: request.body.name,
adress: request.body.adress,
});
user.save(function(err, u) {
if (err) return next(err);
return res.json(u);
});
});
module.exports = router;
Somewhere in your app startup code (often in app.js or similar location) you'll want to call mongoose.connect(<connection url>), normally prior to setting up routes.
Note you can also call insert() explicitly, but it's a static method on the model object, like so:
User.insert({user: 'bob', address: 'somewhere, nh'}, cb)