`ParseUser.save` fails when user is logged in

[gorillatapstudio]

New Issue Checklist

• [X ] I am not disclosing a vulnerability.
• [X ] I am not just asking a question.
• [ X] I have searched through existing issues.
• [ X] I can reproduce the issue with the latest version of Parse Server and the Parse Flutter SDK.

Issue Description

When using the 3.1.12, as long as the user is signed in, user.save() results in save failed error. null is not an int.
When switched back to 3.1.11, the error is gone.
I have switched back and force twice to validate the issue.

Steps to reproduce

upgrade the sdk to 3.1.12, user log in, use debug mode

Actual Outcome

Expected Outcome

Environment

Parse Flutter SDK

• SDK version: 3.7.0
• Operating system version: FILL_THIS_OUT

Server

• Parse Server version: FILL_THIS_OUT

Logs

[parse-github-assistant]

Thanks for opening this issue!

• ❌ Please fill out all fields with a placeholder FILL_THIS_OUT, otherwise your issue will be closed. If a field does not apply to the issue, fill in n/a.

[mbfakourii]

I checked, there is no problem. This error occurs when you timeout. Please check if there is access to the server.

my parse response

╭-- Parse Request
curl -X POST -H 'X-Parse-Revocable-Session: 1' -H 'X-Parse-Installation-Id: ---' -H 'user-agent: Flutter Parse SDK 3.1.12' -H 'X-Parse-Application-Id: ----' -H 'X-Parse-Client-Key: ----' https://parseapi.back4app.com/classes/_User

 https://parseapi.back4app.com/classes/_User
╰--
╭-- Parse Response
Class: _User
Function: ParseApiRQ.signUp
Status Code: 201
Payload: {"className":"_User","objectId":"I49l5SKBPX","createdAt":"2023-02-03T15:15:11.860Z","username":"te424s24453t22","email":"asdas4qq342dmb2@asd.ccc","sessionToken":"r:b68e8ae664e802189f2931c3917bb5c3"}
╰-- 

As you can see in my response, I am using the Flutter Parse SDK 3.1.12 version

[gorillatapstudio]

Thanks for the quick reply! My user object has several child objects which are probably causing the failure.
I verified this issue using several of my apps with different parse instances. Additionally, I never had this failure until the upgrade to 3.1.12.
I am wondering if the 3.1.12 handles the nullable field of the object differently than before.
If you need more info, I can do more debug when i have a chance.

[mbfakourii]

Thanks for the quick reply! My user object has several child objects which are probably causing the failure. I verified this issue using several of my apps with different parse instances. Additionally, I never had this failure until the upgrade to 3.1.12. I am wondering if the 3.1.12 handles the nullable field of the object differently than before. If you need more info, I can do more debug when i have a chance.

Yes, I would appreciate it if you could send a sample code

[gorillatapstudio]

when calling user.save() exception in parse_response_builder.dart / _handleSuccess.
The user object has many children in it as follows.

The result list has some successful and some as failure

Line 75 catches the exception: final ParseError error = ParseError(
code: objectResult[keyCode],
message: objectResult[keyError].toString());

type 'Null' is not a subtype of type 'int'

[mbfakourii]

I made several attempts to generate this error but could not simulate the error.
It is possible to send a sample code that has this problem.

[hgandhi67]

Same error for me it is happening here

Unhandled Exception: type 'Null' is not a subtype of type 'int'

[mbfakourii]

Same error for me it is happening here

Unhandled Exception: type 'Null' is not a subtype of type 'int'

It is possible to send a sample code that has this problem

[mbfakourii]

@hgandhi67 @gorillatapstudio
It is possible to test the library as follows

dependency_overrides:
  parse_server_sdk:
    git:
      url: https://github.com/mbfakourii/Parse-SDK-Flutter
      path: packages/dart
      ref: 889bdd878485a4f7c4228cf8f8247043a118ce29

[gorillatapstudio]

Sorry i am seeing the same error.
I have verified that the pubspec.lock has resolved to the 3.1.12 with overrides.

[gorillatapstudio]

in the 3.1.12 PR,
it changes _getObjectData()[key] = parseDecode(value);
to _unsavedChanges[key] = _getObjectData()[key];
seems to be a big change to original purpose of the code. i noticed many of my objects becomes having unsavedChanges but they shouldn't be.

[mbfakourii]

@hgandhi67 @gorillatapstudio It is possible to test the library as follows

dependency_overrides:
  parse_server_sdk:
    git:
      url: https://github.com/mbfakourii/Parse-SDK-Flutter
      path: packages/dart
      ref: 889bdd878485a4f7c4228cf8f8247043a118ce29

In this way, I went back to 3.1.11
Are you sure the problem is not from somewhere else?

[erikas-taroza]

dependency_overrides:
  parse_server_sdk:
    git:
      url: https://github.com/mbfakourii/Parse-SDK-Flutter
      path: packages/dart
      ref: 889bdd878485a4f7c4228cf8f8247043a118ce29

I ran into this issue today and this override fixed it for me. This issue didn't happen in my release build from a couple weeks ago which is weird (I didn't change anything related to Parse).