Regression after PR #55471: Error when accessing nested attributes in manually set relations

[tabuna]

Laravel Version

12.10.1

PHP Version

8.4

Database Driver & Version

No response

Description

After merging #55471, a regression was introduced in how manually set relations are handled via setRelations(). Behavior that previously returned null now results in a fatal error.

Attempts to address this in #55518 and #55519 do not fully restore the expected behavior.

Steps To Reproduce

$model = new class extends Model {};

$model->setRelations(['many' => ['one', 'two', 'three' => 84]]);

$result = $model->getAttribute('many.three');

✅ Expected behavior:

In versions prior to 12.10.1, this would return null.

❌ Actual behavior:

As of 12.10.1 (and with the mentioned PRs applied), the following error is thrown:

Error: Call to a member function relationLoaded() on null

[rodrigopedra]

Everything related to these changes were reverted at: dc5b445

Please update to Laravel 12.10.2

[realodix]

@rodrigopedra

I see the test is removed completely (dc5b445). Is it possible for you to add a regression test like this

$model = new class extends Model {};

$model->setRelations(['many' => ['one', 'two', 'three' => 84]]);

$result = $model->getAttribute('many.three');

[rodrigopedra]

This would be a test to prevent future attempts on this, right?

I know about some test cases added for that reason, like the one which prevents pagination after calling distinct(), but those were all added by maintainers after many failed attempts.

I am not a maintainer, so I am not sure if these kinds of test cases are wanted/accepted, other in those particular cases.

You can give it a try, though.

Anyway, thanks for the suggestion.

[decadence]

Please update to Laravel 12.0.2

12.10.2

[rodrigopedra]

Thanks @decadence !

I updated my comment.