public function MenuLinkTree::getSubtreeHeight in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Menu/MenuLinkTree.php \Drupal\Core\Menu\MenuLinkTree::getSubtreeHeight()

Finds the height of a subtree rooted by of the given ID.

Parameters

string $id: The ID of an item in the storage.

Return value

int Returns the height of the subtree. This will be at least 1 if the ID exists, or 0 if the ID does not exist in the storage.

Overrides MenuLinkTreeInterface::getSubtreeHeight

File

core/lib/Drupal/Core/Menu/MenuLinkTree.php, line 295

Class

MenuLinkTree

Implements the loading, transforming and rendering of menu link trees.

Namespace

Drupal\Core\Menu

Code

public function getSubtreeHeight($id) {
  return $this->treeStorage
    ->getSubtreeHeight($id);
}