function MenuActiveTrailsCacheContext::getContext

File

core/lib/Drupal/Core/Cache/Context/MenuActiveTrailsCacheContext.php, line 29

Class

MenuActiveTrailsCacheContext

Defines the MenuActiveTrailsCacheContext service.

Namespace

Code

public function getContext($menu_name = NULL) {
  if (!$menu_name) {
    throw new \LogicException('No menu name provided for menu.active_trails cache context.');
  }
  $active_trail = $this->container
    ->get('menu.active_trail')
    ->getActiveTrailIds($menu_name);
  return 'menu_trail.' . $menu_name . '|' . implode('|', $active_trail);
}