function ForumNodeBreadcrumbBuilder::build

Overrides ForumBreadcrumbBuilderBase::build

File

core/modules/forum/src/Breadcrumb/ForumNodeBreadcrumbBuilder.php, line 25

Class

ForumNodeBreadcrumbBuilder

Breadcrumb builder for forum nodes.

Namespace

Code

public function build(RouteMatchInterface $route_match) {
  $breadcrumb = parent::build($route_match);
  $breadcrumb->addCacheContexts([
    'route',
  ]);
  $parents = $this->termStorage
    ->loadAllParents($route_match->getParameter('node')->forum_tid);
  if ($parents) {
    $parents = array_reverse($parents);
    foreach ($parents as $parent) {
      $breadcrumb->addCacheableDependency($parent);
      $breadcrumb->addLink(Link::createFromRoute($parent->label(), 'forum.page', [
        'taxonomy_term' => $parent->id(),
      ]));
    }
  }
  return $breadcrumb;
}