Dot operator not fetching child properties of a Mongoose Document object

Question

console.log('>>>>>>user = '+ user);

outputs

>>>>>>user      = { username: 'user1',
  salt: '3303187e50a64889b41a7a1c66d3d3c10b9dec638fdd033bee1221d30d01c5e1',
  hash: 'a174c206d88bee1594bb081dbd32d53420f6ef3d6322104f3d0722d58bc8dd8d',
  _id: 52d3177481daf59c11000001,
  __v: 0 }

but

console.log('>>>>>>user.hash = '+ user.hash);

outputs

>>>>>>user.hash = undefined

What could be causing this?

Edit: Interestingly, user._id, (and only it) works.

btw, how come is _id: working with you, it does not have quotes and contains letters. As far as I am aware you should get `Unexpected token ILLEGAL ` for this. — dachi, Jan 15 '14 at 05:00
Can you try `console.log('>>>>>>user.hash = ', user.hash);` instead of `console.log('>>>>>>user.hash = '+ user.hash);`? — Vikram Deshmukh, Jan 15 '14 at 05:01
@Teemu `user` is an {object}. It's a [model object for mongoDB](http://mongoosejs.com/docs/guide.html). — laggingreflex, Jan 15 '14 at 05:02
@dachi Don't know but `_id` is [ObjectID](http://dochub.mongodb.org/core/objectids), set automatically [mongoDB](http://mongoosejs.com/docs/guide.html) — laggingreflex, Jan 15 '14 at 05:06
@AlexanderT. [Didn't help either.](http://i.imgur.com/xPXfZhw.png) — laggingreflex, Jan 15 '14 at 05:13
@srvikram13 [doesn't work either.](http://i.imgur.com/SD5f0rD.png) — laggingreflex, Jan 15 '14 at 05:22
@laggingreflex Could you try `for (var key in user) { console.log(key); }` and post here what all keys are printed. — Salman, Jan 15 '14 at 06:53
@Салман http://pastebin.com/SLCGDYt2 || Actually, there's `hash` in it. And I think I've just figured it out. I'll be posting answer myself in a bit.. — laggingreflex, Jan 15 '14 at 06:57

laggingreflex · Accepted Answer · 2014-11-12T01:39:43.590

4

update: Solved in mongoose v3.8.19

It's totally a mongoose issue.

A solution was to not go schema-less. I was using strict: false when defining my schema (for making my database schema-less)

var Users = mongoose.model('Users', new mongoose.Schema({
    },{strict:false}));

Adding hash here solved it.

var Users = mongoose.model('Users', new mongoose.Schema({
    hash: String
    },{strict:false}));

edited Nov 12 '14 at 01:39

answered Jan 15 '14 at 07:01

laggingreflex

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So properties not defined in the schema (despite being saved due to `strict:false`) do show up in `.toString` but are not accessible as a property? – Bergi Jan 15 '14 at 18:43
@Bergi yup, seems so… – laggingreflex Jan 16 '14 at 00:59

Deepak Ingole · Answer 2 · 2014-01-15T05:11:39.130

1

I believe user is an object and to access object property in JS you use . notation(Property Accessors).

And In a code posted above I can see ,ID field is missing 'quotes',

user = { username: 'user1',
         salt: '3303187e50a64889b41a7a1c66d3d3c10b9dec638fdd033bee1221d30d01c5e1',
         hash: 'a174c206d88bee1594bb081dbd32d53420f6ef3d6322104f3d0722d58bc8dd8d',
         _id: '52d3177481daf59c11000001',
         __v: 0 
     };

console.log(user.hash); // accessing hash property of `user` Object.

Working fiddle

edited Jan 15 '14 at 05:11

answered Jan 15 '14 at 05:01

Deepak Ingole

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`user` is the output. I don't set it (or it's children) manually. – laggingreflex Jan 15 '14 at 05:03
2

He's got a mongodb node application, how can he post it to jsfiddle – dachi Jan 15 '14 at 05:08
at least post `console.log(typeof(user));` – Deepak Ingole Jan 15 '14 at 05:13
@laggingreflex if its Object then look at the fiddle posted above.user is object.And I am accessing `hash` property of `user`. – Deepak Ingole Jan 15 '14 at 05:17

score 0 · Answer 3 · edited May 23 '17 at 12:13

0

Taking a hint from this answer, can you try changing your findOne arguments as:

function(username, password, done){
    Users.findOne({username:new require('mongodb').ObjectID(username)}, function(err, user) {
        // do something here
    });
}

Note: {username:new require('mongodb').ObjectID(username)}

Basically, you need to construct the 'username' and not pass it as a string to findOne.

edited May 23 '17 at 12:13

Community

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answered Jan 15 '14 at 06:02

Vikram Deshmukh

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How does that influence the availability of the `.hash` property? – Bergi Jan 15 '14 at 06:23
ok Thanks a tonne. This isn't the answer but this set me in right direction and I figured it out. posting answer myself in a bit.. – laggingreflex Jan 15 '14 at 06:59

Dot operator not fetching child properties of a Mongoose Document object

3 Answers3

Working fiddle

Linked