applicant-site/app/Http/Requests/admin/Catalog/Direction/UpdateSubjectRequest.php

<?php

namespace App\Http\Requests\admin\Catalog\Direction;

use Illuminate\Foundation\Http\FormRequest;

class UpdateSubjectRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    public function rules(): array
    {
        return [
            'position' => 'required|int|numeric|max:255',
            'description' => 'nullable|string',
            'slug' => [
                'string',
                'required',
                'max:255',
                "unique:subjects,slug,{$this->subject->id}",
            ],
            'name' => [
                'required',
                'string',
                'max:255',
                "unique:subjects,name,{$this->subject->id}",
            ],
        ];
    }
}