RouteSubscriber::alterRoutes

protected RouteSubscriber::alterRoutes(RouteCollection $collection)

protected function alterRoutes(RouteCollection $collection) {
  foreach ($this->manager->getDefinitions() as $entity_type_id => $entity_type) {
    if ($route_name = $entity_type->get('field_ui_base_route')) {
      // Try to get the route from the current collection.
      if (!$entity_route = $collection->get($route_name)) {
        continue;
      }
      $path = $entity_route->getPath();

      $options = $entity_route->getOptions();
      if ($bundle_entity_type = $entity_type->getBundleEntityType()) {
        $options['parameters'][$bundle_entity_type] = array(
          'type' => 'entity:' . $bundle_entity_type,
        );
      }
      // Special parameter used to easily recognize all Field UI routes.
      $options['_field_ui'] = TRUE;

      $defaults = array(
        'entity_type_id' => $entity_type_id,
      );
      // If the entity type has no bundles and it doesn't use {bundle} in its
      // admin path, use the entity type.
      if (strpos($path, '{bundle}') === FALSE) {
        $defaults['bundle'] = !$entity_type->hasKey('bundle') ? $entity_type_id : '';
      }

      $route = new Route(
      "$path/fields/{field_config}", 
      array(
        '_entity_form' => 'field_config.edit',
        '_title_callback' => '\Drupal\field_ui\Form\FieldConfigEditForm::getTitle',
      ) + $defaults, 
      array('_entity_access' => 'field_config.update'), 
      $options
      );
      $collection->add("entity.field_config.{$entity_type_id}_field_edit_form", $route);

      $route = new Route(
      "$path/fields/{field_config}/storage", 
      array('_entity_form' => 'field_storage_config.edit') + $defaults, 
      array('_permission' => 'administer ' . $entity_type_id . ' fields'), 
      $options
      );
      $collection->add("entity.field_config.{$entity_type_id}_storage_edit_form", $route);

      $route = new Route(
      "$path/fields/{field_config}/delete", 
      array('_entity_form' => 'field_config.delete') + $defaults, 
      array('_entity_access' => 'field_config.delete'), 
      $options
      );
      $collection->add("entity.field_config.{$entity_type_id}_field_delete_form", $route);

      $route = new Route(
      "$path/fields", 
      array(
        '_controller' => '\Drupal\field_ui\Controller\FieldConfigListController::listing',
        '_title' => 'Manage fields',
      ) + $defaults, 
      array('_permission' => 'administer ' . $entity_type_id . ' fields'), 
      $options
      );
      $collection->add("entity.{$entity_type_id}.field_ui_fields", $route);

      $route = new Route(
      "$path/fields/add-field", 
      array(
        '_form' => '\Drupal\field_ui\Form\FieldStorageAddForm',
        '_title' => 'Add field',
      ) + $defaults, 
      array('_permission' => 'administer ' . $entity_type_id . ' fields'), 
      $options
      );
      $collection->add("field_ui.field_storage_config_add_$entity_type_id", $route);

      $route = new Route(
      "$path/form-display", 
      array(
        '_entity_form' => 'entity_form_display.edit',
        '_title' => 'Manage form display',
        'form_mode_name' => 'default',
      ) + $defaults, 
      array('_field_ui_form_mode_access' => 'administer ' . $entity_type_id . ' form display'), 
      $options
      );
      $collection->add("entity.entity_form_display.{$entity_type_id}.default", $route);

      $route = new Route(
      "$path/form-display/{form_mode_name}", 
      array(
        '_entity_form' => 'entity_form_display.edit',
        '_title' => 'Manage form display',
      ) + $defaults, 
      array('_field_ui_form_mode_access' => 'administer ' . $entity_type_id . ' form display'), 
      $options
      );
      $collection->add("entity.entity_form_display.{$entity_type_id}.form_mode", $route);

      $route = new Route(
      "$path/display", 
      array(
        '_entity_form' => 'entity_view_display.edit',
        '_title' => 'Manage display',
        'view_mode_name' => 'default',
      ) + $defaults, 
      array('_field_ui_view_mode_access' => 'administer ' . $entity_type_id . ' display'), 
      $options
      );
      $collection->add("entity.entity_view_display.{$entity_type_id}.default", $route);

      $route = new Route(
      "$path/display/{view_mode_name}", 
      array(
        '_entity_form' => 'entity_view_display.edit',
        '_title' => 'Manage display',
      ) + $defaults, 
      array('_field_ui_view_mode_access' => 'administer ' . $entity_type_id . ' display'), 
      $options
      );
      $collection->add("entity.entity_view_display.{$entity_type_id}.view_mode", $route);
    }
  }
}