public function PathPluginBase::alterRoutes in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/views/src/Plugin/views/display/PathPluginBase.php \Drupal\views\Plugin\views\display\PathPluginBase::alterRoutes()
2. 10 core/modules/views/src/Plugin/views/display/PathPluginBase.php \Drupal\views\Plugin\views\display\PathPluginBase::alterRoutes()

Alters a collection of routes and replaces definitions to the view.

Most of the collections won't have the needed route, so by the return value the method can specify to break the search.

Parameters

\Symfony\Component\Routing\RouteCollection $collection:

Return value

array Returns a list of "$view_id.$display_id" elements which got overridden.

Overrides DisplayRouterInterface::alterRoutes

File

core/modules/views/src/Plugin/views/display/PathPluginBase.php, line 276

Class

PathPluginBase

The base display plugin for path/callbacks. This is used for pages and feeds.

Namespace

Drupal\views\Plugin\views\display

Code

public function alterRoutes(RouteCollection $collection) {
  $view_route_names = [];
  $view_path = $this
    ->getPath();
  $view_id = $this->view->storage
    ->id();
  $display_id = $this->display['id'];
  $view_route = $this
    ->getRoute($view_id, $display_id);
  foreach ($collection
    ->all() as $name => $route) {
    if ($this
      ->overrideApplies($view_path, $view_route, $route)) {
      $parameters = $route
        ->compile()
        ->getPathVariables();

      // @todo Figure out whether we need to merge some settings (like
      // requirements).
      // Replace the existing route with a new one based on views.
      $original_route = $collection
        ->get($name);
      $collection
        ->remove($name);
      $path = $view_route
        ->getPath();

      // Replace the path with the original parameter names and add a mapping.
      $argument_map = [];

      // We assume that the numeric ids of the parameters match the one from
      // the view argument handlers.
      foreach ($parameters as $position => $parameter_name) {
        $path = str_replace('{arg_' . $position . '}', '{' . $parameter_name . '}', $path);
        $argument_map['arg_' . $position] = $parameter_name;
      }

      // Copy the original options from the route, so for example we ensure
      // that parameter conversion options is carried over.
      $view_route
        ->setOptions($view_route
        ->getOptions() + $original_route
        ->getOptions());
      if ($original_route
        ->hasDefault('_title_callback')) {
        $view_route
          ->setDefault('_title_callback', $original_route
          ->getDefault('_title_callback'));
      }

      // Set the corrected path and the mapping to the route object.
      $view_route
        ->setOption('_view_argument_map', $argument_map);
      $view_route
        ->setPath($path);
      $collection
        ->add($name, $view_route);
      $view_route_names[$view_id . '.' . $display_id] = $name;
    }
  }
  return $view_route_names;
}