BookManager::checkNodeIsRemovable

public BookManager::checkNodeIsRemovable(NodeInterface $node)

Determines if a node can be removed from the book.

A node can be removed from a book if it is actually in a book and it either is not a top-level page or is a top-level page with no children.

Parameters

\Drupal\node\NodeInterface $node: The node to remove from the outline.

Return value

bool TRUE if a node can be removed from the book, FALSE otherwise.

Overrides BookManagerInterface::checkNodeIsRemovable

File

core/modules/book/src/BookManager.php, line 240

Class

BookManager

Defines a book manager.

Namespace

Drupal\book

Code

public function checkNodeIsRemovable(NodeInterface $node) {
  return (!empty($node->book['bid']) && (($node->book['bid'] != $node->id()) || !$node->book['has_children']));
}