function book_node_predelete
Implements hook_ENTITY_TYPE_predelete() for node entities.
File
- 
              core/
modules/ book/ book.module, line 281  
Code
function book_node_predelete(EntityInterface $node) {
  if (!empty($node->book['bid'])) {
    /** @var \Drupal\book\BookManagerInterface $book_manager */
    $book_manager = \Drupal::service('book.manager');
    $book_manager->deleteFromBook($node->book['nid']);
  }
}
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.