MenuTreeStorage::loadSubtreeData

public MenuTreeStorage::loadSubtreeData($id, $max_relative_depth = NULL)

Loads a subtree rooted by the given ID.

The returned links are structured like those from loadTreeData().

Parameters

string $id: The menu link plugin ID.

int $max_relative_depth: (optional) The maximum depth of child menu links relative to the passed in. Defaults to NULL, in which case the full subtree will be returned.

Return value

array An array with 2 elements:

• subtree: A fully built menu tree element or FALSE.
• route_names: An array of all route names used in the subtree.

Overrides MenuTreeStorageInterface::loadSubtreeData

File

core/lib/Drupal/Core/Menu/MenuTreeStorage.php, line 1005

Class

MenuTreeStorage

Provides a menu tree storage using the database.

Namespace

Drupal\Core\Menu

Code

public function loadSubtreeData($id, $max_relative_depth = NULL) {
  $tree = array();
  $root = $this->loadFull($id);
  if (!$root) {
    return $tree;
  }
  $parameters = new MenuTreeParameters();
  $parameters->setRoot($id)->onlyEnabledLinks();
  return $this->loadTreeData($root['menu_name'], $parameters);
}