[Bug]: Defined morphMap is ignored

[schakko]

What happened?

If you define a morph map like

Relation::enforceMorphMap([
    'post' => 'App\Models\Post',
    'video' => 'App\Models\Video',
]);

in your Laravel application then CreateRelatedRecord::associateRecordWithParent still uses App\Models\Post as morph type and not post.

Bugfix:
Change CreateRelatedRecord::associateRecordWithParent to

    protected function associateRecordWithParent(Model $record, Model $owner)
    {
        /** @var HasMany $relationship */
        if (($relationship = $this->getRelation()) instanceof HasMany) {
            $record->{$relationship->getForeignKeyName()} = $owner->getKey();
        }
        if (($relationship = $this->getRelation()) instanceof MorphMany) {
            $record->{$relationship->getForeignKeyName()} = $owner->getKey();
            // FIX: use getMorphClass() instead
            $record->{$relationship->getMorphType()} = $owner->getMorphClass();
        }

        return $record;
    }

How to reproduce the bug

See above.

Package Version

1.2

PHP Version

8.3.7

Laravel Version

11.22.0

Which operating systems does with happen with?

Windows, Linux

Notes

No response