whereDoesntHave not produce correct query when use with nullableMorphs

[mix5003]

Laravel Version

11.39.1

PHP Version

8.2.12

Database Driver & Version

sqlite / mysql

Description

When use whereDoesntHave with nullableMorphs relation. it will not count nullable as dosent have.

Steps To Reproduce

prepare project

1. create new project with laravel 10/11
2. create MainTable model by php artisan make:model -m MainTable
3. add $table->nullableMorphs('relate'); to MainTable migration file
4. add morphTo relation to MainTable Model file public function relate(){ return $this->morphTo(); }
5. create Relate1model by php artisan make:model -m Relate1
6. migrate by php artisan migrate

test by this in php artisan tinker

use App\Models\MainTable;
use App\Models\Relate1;

$r1 = new Relate1();
$r1->save();


$m1 = new MainTable();
$m1->save();

$m2 = new MainTable();
$m2->relate()->associate($r1);
$m2->save();

DB::enableQueryLog();
echo MainTable::has('relate')->count(); // 1
echo MainTable::whereDoesntHave('relate')->count(); // 0 expect 1

var_dump(DB::getQueryLog());

it produce this query

select count(*) as aggregate from "main_tables" where (("main_tables"."relate_type" = ? and not exists (select * from "relate1s" where "main_tables"."relate_id" = "relate1s"."id")))

but it should be (add "main_tables"."relate_type" is null or

select count(*) as aggregate from "main_tables" where ("main_tables"."relate_type" is null or ("main_tables"."relate_type" = ? and not exists (select * from "relate1s" where "main_tables"."relate_id" = "relate1s"."id")))

[crynobone]

Hey there, thanks for reporting this issue.

We'll need more info and/or code to debug this further. Can you please create a repository with the command below, commit the code that reproduces the issue as one separate commit on the main/master branch and share the repository here?

Please make sure that you have the latest version of the Laravel installer in order to run this command. Please also make sure you have both Git & the GitHub CLI tool properly set up.

laravel new bug-report --github="--public"

Do not amend and create a separate commit with your custom changes. After you've posted the repository, we'll try to reproduce the issue.

Thanks!

[mix5003]

like this?
https://github.com/mix5003/laravel-bug-54315

you can clone migrate and run php artisan app:test-query for test result