cannot modify user function for Facebook user

[adamontherun]

In iOS, with a normal (i.e. signed up with username and password) parse user, the following works:
[PFUser currentUser].username = @"newParseName";
[PFUser currentUser] save];

However, a user who authenticated via Facebook who performs

[PFUser currentUser].username = @"newFBName";
[PFUser currentUser] save];

will get the following error:

[Error]: cannot modify user function () {
return this.data.objectId || this.query.objectId;
} (Code: 206, Version: 1.12.0)

This 'cannot modify user function' error is returned for any changes you try to make to the current loggedin user when its a Facebook user.

[anthonylai]

Got the same issue.
This error also occurs when creating any objects in any classes. It just seems like the current user context is not set appropriately when a user is authenticated through facebook.

[ramymedhat]

I'm getting the same error with username/password login. It works fine right after the user signs in. But if the app is closed and reopened, it stops working.

[gfosco]

Interesting.. Okay, we need to track down the root of this.

[jganzabal]

Same issue here, used the simple code to test it and got: POST http://localhost:8081/parse/classes/_User/9ihJFseG01 400 (Bad Request)

function initFacebookWithParse() {
window.fbAsyncInit = function() {
Parse.FacebookUtils.init({
appId: '1554770854736875',
xfbml: true,
version: 'v2.5'
});
};

(function(d, s, id) {
    var js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) {
        return;
    }
    js = d.createElement(s);
    js.id = id;
    js.src = "//connect.facebook.net/en_US/sdk.js";
    fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));

}

var currentUser;
function facebookLoginWithParse() {
if (!currentUser) {
Parse.FacebookUtils.logIn("email,public_profile", {
success: function(user) {
if (!user.existed()) {
console.log("User signed up and logged in through Facebook!");
FB.api('/me?fields=name,email', function(response) {
if (response.email) {
user.set("email", response.email);
}
user.save();
});
} else {
console.log("User logged in through Facebook!");
user.set("javaScriptLogin", true); //set anything to make sense on saving
user.save();
}
currentUser = user;
},
error: function(user, error) {
console.log(user);
console.log(error);
console.log("User cancelled the Facebook login or did not fully authorize.");
}
});
} else {
Parse.User.logOut();
Parse.User.currentAsync().then(function(user) {
currentUser = user;
console.log("logged out");
}, function(error) {
console.log("error");
console.log(error);
});

}

}

Logging in with user and password seems to work ok and lets me modify user

[viktor-skarlatov]

This happens because the server does not set the sessionToken of the user created by [PFUser become]. The server gets a session token, signs the user in and then returns the user without a valid session token. This happens in the handleMe() function in users.js. After fixing this I hit another brick but I haven't solved it yet. I will post more info as soon as I figure out a solution.

[Spacelapp]

Any news on this?

[edvincandon]

Check #173 -> it's been merged
Haven't tested it yet to see if that fixes the cannot modify user function issue

[edvincandon]

Just tested the #173, works like a charm. Now able to update_User object without any errors.
Note: I had to manually delete my _User and _Session schema for it to work properly.

Thanks @taylorstine !

[taylorstine]

@edvincandon 👍

[jganzabal]

Thanks @taylorstine ! Worked for me too after deleting _User and _Session schema.

[adamontherun]

this is resolved.

[DrBeak1]

This still seems to be an issue for me. If I log in with Facebook, every call returned is 'cannot modify user'. Unfortunately I cannot delete my schemas because the app is live. Is there any way to fix this? I even tried using Parse.Cloud.useMasterKey() in my user beforeSave cloud code, but the issue still occurs.

[ryderjack]

@DrBeak1 same issue - deleting _User and _Session didn't help either

[DrBeak1]

@ryderjack ya I'm finding there seems to be a lot of issues here. I posted more details about exactly what is happening for me here: #880

Hoping to get some feedback from someone. I'm an obj-c/java dev with only a little bit of node experience but enough to be helpful I suspect.

[cid2105]

i'm also having issues. it seems that my a new user is created via facebook every time I log in through facebook.. very frustrating.

[DrBeak1]

@cid2105 did you see the other issue I posted (#880)? I was able to get around the issue of multiple users being created for the same facebook account by removing any beforeSave cloud code for the User model. Are you using a beforeSave trigger?

Not that removing the beforeSave is a real solution, but knowing it plays a part in this could help decipher what is going on.

[cid2105]

@DrBeak1 unfortunately, deleting the beforeSave triggers isnt an option for me. Although I can modify my facebook users now, signing in creates a new user each time. very frustrating...

[DrBeak1]

@cid2105 , very strange. I'm having the opposite issue after removing beforeSave: no new users, but cannot modify current. Out of curiosity, what client are you using to modify/sign in? iOS, javascript, android, etc? Just to be thorough, I'm using parse 1.7.1, parse-server 2.1.4, and ios parse 1.12.0.

[cid2105]

my issue disappeared after upgrading to parse-server 2.1.6

[mikepaggi]

Had to upgrade Parse Server to 2.1.6 and destroy my _User and _Schema for it to work for allowing me to modify my user data after authenticating through Facebook.

[flovilmart]

Destroy The _User database? Was there some problems with the columns types?

[mikepaggi]

Not sure...but I took the suggestion from someone above. I'm starting pretty fresh so I don't have anything quite yet except my test database so it was the quick fix for me... For some reason previous to updating to 2.1.6 and destroying the _User database I would get an error from the iOS debugging side around not being able to edit the user.

[flovilmart]

Alright, what matters now is that everything is rolling fine

[mikepaggi]

Yup all works now for me. Not stuck anymore :-) I thought it was me...

[highthem]

hi,

The issue is still there

parse server 2.10
ios sdk 1.13
android sdk 1.13.1

[srameshr]

The issue still exists. Cannot modify for the subsequent signups after the first.