CODEWITHSUNDEEP
javascriptnode.jsdatabasemongoose
elkegovaert
elkegovaert

Reputation: 1

Print all items from database Mongoose using Pug

UPDATED

I want to print all the items from the database reizen (in Mongoose) that I created. It never prints the items it always prints immediatly prints 'Geen reizen'. I've been looking for quite some time and I don't know how to fix it. My code is:

var router = express.Router();
const mongoose = require('mongoose');
const { body, validationResult } = require('express-validator/check');

/* GET reizen*/
router.get('/', function(req, res, next) {
  if (req.cookies.username != '') {
    res.render('reizen', { sisu : req.cookies.username });
  }
  else {
    res.render('reizen', { sisu : 'SIGN IN/SIGN UP'});
  }
});

router.get('/getreizen', function(req, res, next) {
  reizen.find({}, function(err, reizen) {
    res.render('reizen', {reizen: reizen});
  });
});

I'm still working on the first part, about the cookies, so you can ignore that part.

My code in pug is:

extends layout

block content
    #reizen.w3-content.w3-container.w3-padding-64
        h3.w3-center REIZEN
        a.w3-bar-item.border-button(href='/reistoevoegen') 
            |   VOEG REIS TOE
        p
            |
            |
        p
            each val in reizen
                a Titel: #{val.titel}
            else
                li Geen reizen.

I'm using each val in reizen ? reizen: [] because otherwise I get the error 'can't get property length from undefined'.

Can somebody tell me what's wrong?

Upvotes: 0

Views: 139

Answers (1)

alexloehr
alexloehr

Reputation: 1831

Your method signature is wrong, you are using:

reizen.find({}, function(reizen) {
    res.render('reizen', {reizen: reizen});
  });

But the callback has the signature function(err, reizen).

So you are trying to print the error (err) in your template which is undefined.

Update:

Next Test is to exclude the db from the equation. Update code and run again.

const data = [
   { titel: "A" },
   { titel: "B" },
]
res.render('reizen', {reizen: data});

Upvotes: 1

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