contacts_events-8.x-1.x-dev/modules/accommodation/src/AccommodationHtmlRouteProvider.php

<?php

namespace Drupal\contacts_events_accommodation;

use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\Routing\AdminHtmlRouteProvider;
use Symfony\Component\Routing\Route;

/**
 * Provides HTML routes for accommodation entities.
 */
class AccommodationHtmlRouteProvider extends AdminHtmlRouteProvider {

  /**
   * {@inheritdoc}
   */
  protected function getCollectionRoute(EntityTypeInterface $entity_type) {
    if ($route = parent::getCollectionRoute($entity_type)) {
      $route->setOption('_admin_route', TRUE);
      $route->setOption('parameters', [
        'contacts_event' => ['type' => 'entity:contacts_event'],
      ]);
      $route->setRequirement('_contacts_events_accommodation', 'TRUE');
      return $route;
    }
  }

  /**
   * {@inheritdoc}
   */
  protected function getCanonicalRoute(EntityTypeInterface $entity_type) {
    if ($entity_type->hasLinkTemplate('canonical')) {
      $entity_type_id = $entity_type->id();
      $route = new Route($entity_type->getLinkTemplate('canonical'));

      // Use the edit form handler, if available, otherwise default.
      $operation = 'default';
      if ($entity_type->getFormClass('edit')) {
        $operation = 'edit';
      }
      $route
        ->setDefaults([
          '_entity_form' => "{$entity_type_id}.{$operation}",
          '_title_callback' => '\Drupal\Core\Entity\Controller\EntityController::editTitle',
        ])
        ->setRequirement('_entity_access', "{$entity_type_id}.update")
        ->setOption('parameters', [
          $entity_type_id => ['type' => 'entity:' . $entity_type_id],
        ])
        ->setOption('_admin_route', TRUE);

      // Entity types with serial IDs can specify this in their route
      // requirements, improving the matching process.
      if ($this->getEntityTypeIdKeyType($entity_type) === 'integer') {
        $route->setRequirement($entity_type_id, '\d+');
      }
      return $route;
    }
  }

}