ldc-crm/app/Http/Requests/Bo/Services/StoreServiceRequest.php

<?php

namespace App\Http\Requests\Bo\Services;

use Illuminate\Foundation\Http\FormRequest;

class StoreServiceRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return boolean
     */
    public function authorize(): bool
    {
        return auth('backend')->check();
    }

    /**
     * Prepare the data for validation.
     *
     * @return void
     */
    protected function prepareForValidation(): void
    {
        $this->merge([
            'brand_id' => collect($this->brand)->pluck('id')->first()
        ]);
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules(): array
    {
        return [
            'name'     => 'required|string|min:5|max:255',
            'brand_id' => 'required|integer|min:0|exists:brands,id',
        ];
    }

    /**
     * Get custom attributes for validator errors.
     *
     * @return array
     */
    public function attributes(): array
    {
        return [
            'name'     => trans('Nom du service'),
            'brand_id' => trans('Id de la marque'),
        ];
    }
}