Eloquent with

[makroxyz]

• Larastan Version: 2.10.8
• Laravel Version: 11.23.*

Description

Starting from Laravel 11.23.* the following error

Parameter 1 $relations of method Illuminate\Database\Eloquent\Builder<Domain\Monitor\Models\MonitorResource>::with() expects array<array|(Closure(Illuminate\Database\Eloquent\Relations\Relation<*, *, *>):  mixed)|string>|string, array{monitorable: Closure(Illuminate\Database\Eloquent\Relations\MorphTo): void} given

Laravel code where the issue was found

$resources = Resource::whereIn('resource_id', $requestResources)
    ->with([
        'monitorable' => function (MorphTo $morphTo) {
             $morphTo->morphWith([
                 Service::class => [
                     'relation1',
                     'relation2',
                 ],
             ]);
          },
     ]);

[calebdw]

Hello!

Thanks for your report, however, this is expected as closure parameter types are invariant. See:

• [11.x] fix: Builder::with closure types laravel/framework#52729
• [11.x] Fix incorrect PHPDoc for Builder relation laravel/framework#52754
• [11.x] Enhance PHPDoc for Eloquent Relations to support precise subclasses laravel/framework#52775

I thought this would be fine since most methods you need are defined on the Relation but morphWith is only defined on the MorphTo relation so you do need to type it.

I'll open an issue with PHPStan to see if there's a way to solve this problem. In the meantime you can override the type inside the closure:

$resources = Resource::query()
    ->whereIn('resource_id', $requestResources)
    ->with([
        'monitorable' => function ($morphTo) {
             /** @var MorphTo $morphTo */
             $morphTo->morphWith([
                 Service::class => ['relation1', 'relation2'],
             ]);
          },
     ]);

[makroxyz]

Sorry, but workaround doesn't work...

PHPDoc tag @var for variable $morphTo contains generic class Illuminate\Database\Eloquent\Relations\MorphTo but does not specify its types: TRelatedModel, TDeclaringMode

[calebdw]

So then use:

/** @var MorphTo<*, *> $morphTo */