function PathPluginBase::alterRoutes

Overrides DisplayRouterInterface::alterRoutes

File

core/modules/views/src/Plugin/views/display/PathPluginBase.php, line 282

Class

PathPluginBase

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

Namespace

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;
}