RouterRebuildConfirmForm.php

<?php

namespace Drupal\devel\Form;

use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Routing\RouteBuilderInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides confirmation form for rebuilding the routes.
 */
class RouterRebuildConfirmForm extends ConfirmFormBase {
    
    /**
     * The route builder service.
     *
     * @var \Drupal\Core\Routing\RouteBuilderInterface
     */
    protected $routeBuilder;
    
    /**
     * Constructs a new RouterRebuildConfirmForm object.
     *
     * @param \Drupal\Core\Routing\RouteBuilderInterface $route_builder
     *   The route builder service.
     */
    public function __construct(RouteBuilderInterface $route_builder) {
        $this->routeBuilder = $route_builder;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('router.builder'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'devel_menu_rebuild';
    }
    
    /**
     * {@inheritdoc}
     */
    public function getQuestion() {
        return $this->t('Are you sure you want to rebuild the router?');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCancelUrl() {
        return new Url('<front>');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDescription() {
        return $this->t('Rebuilds the routes information gathering all routing data from .routing.yml files and from classes which subscribe to the route build events. This action cannot be undone.');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getConfirmText() {
        return $this->t('Rebuild');
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
        $this->routeBuilder
            ->rebuild();
        drupal_set_message($this->t('The router has been rebuilt.'));
        $form_state->setRedirect('<front>');
    }

}