invoiceninja/app/Http/Requests/Template/ShowTemplateRequest.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com)
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2020. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://opensource.org/licenses/AAL
 */

namespace App\Http\Requests\Template;

use App\Http\Requests\Request;

class ShowTemplateRequest extends Request
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize() : bool
    {
        return auth()->user()->isAdmin();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            "template" => "sometimes",
        ];
    }

    protected function prepareForValidation()
    {
        $input = $this->all();

        $this->replace($input);
    }

    public function message()
    {

    }
}