Parse Javascript - Relation is not a function

Question

I'm trying to understand how relation works and i did wrote this simple script:

var Parse = require('parse/node');

Parse.initialize('myAppId');
Parse.serverURL = 'http://localhost:1337/parse';

var userQuery = new Parse.Query(Parse.User);
userQuery.equalTo('username', 'the_username');

userQuery.find()
    .then(user => {
        return user;
    })
    .then(user => {
        var Systems = Parse.Object.extend("systems");
        var systemQuery = new Parse.Query(Systems);
        systemQuery.equalTo('customer', 'myCustomer');

        systemQuery.find()
            .then(system => {
                var relation = user.relation('systems_ref'); // HERE I GET RELATION IS NOT A FUNC
                relation.add(system);
                console.log('Adding relation');

                user.save()
                    .then(response => console.log('user saved'))
                    .catch(error => console.log('Error saving', error));
            }).catch(error => console.log('Error find system', error));
    });

But in the line where i try to get user.relation i have the error "Relation is not a function".

I have look others example on how to create a relation, but i dont see difference in my code...

I have the user (that is a sublcass of ParseObject), and on it i'm trying to access relation method...

Pravesh Tiwari · Accepted Answer · 2016-06-28 13:30:41Z

1

You may use it as follows: To add the Post to User with the JavaScript SDK:
var user = Parse.User.current();
var relation = user.relation("posts");
relation.add(post);
user.save();

answered Jun 28, 2016 at 13:30

Pravesh Tiwari

1571 silver badge6 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Pravesh Tiwari Over a year ago

maybe you are not getting user obecjt where you are calling relation for this. you can console and find if it is ok or not.

Mistre83 Over a year ago

I've placed console.log everywhere and all works... i get the User back and is an instance of ParseUser... Maybe with User.current() will works, but i will need to do this in the "Administration" page i'm building, so i cand use the current user, because i have to add relation to others user. I will user array of Pointer if this do not works :(

Collectives™ on Stack Overflow

Parse Javascript - Relation is not a function

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related