Just updated to 12.10.1 and got this error 😄 Thank you for quick fix.

Thank you! However, it seems that the issue still persists after this PR.

I have the following example to reproduce it:

$model = new class extends Model {};

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

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

// In version 12.10.1 (and with this PR), this throws:
// Error: Call to a member function relationLoaded() on null
// Previously, this would return null.

Can we just revert everything related to this?

Can we just revert everything related to this?

I guess so. Mind both my PRs were trying to fix the original one.

Do you want me to send a reversal PR?

I would like to keep the feature if it can work without issue, it would be useful.

@nicekiwi it was already reverted in 12.0.2

I agree it is useful, but it had too many oversights on edge-cases. (Granted that it was very hard for the original author to think about them all in advance.)

You can try sending a PR that addresses these edge cases. You can either build up from the reverted code and consider the bug reports, or start from scratch.

An alternative is creating a package that provides an override for that method. Even as a trait, as it would be added by a subclass from the model, it wouldn't conflict with the HasRelationships trait.

@nicekiwi It was reverted in this commit: dc5b445