Edit file File name : YesNoType.php Content :<?php /* * This file is part of the Kimai time-tracking app. * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace App\Form\Type; use Symfony\Component\Form\AbstractType; use Symfony\Component\Form\Extension\Core\Type\CheckboxType; use Symfony\Component\OptionsResolver\OptionsResolver; /** * Custom form field type to select between Yes and No. */ class YesNoType extends AbstractType { /** * {@inheritdoc} */ public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults([ 'value' => true, 'false_values' => [null, 0, false, 'false', '', '0'], 'required' => false, ]); } /** * {@inheritdoc} */ public function getParent() { return CheckboxType::class; } } Save