book_node_update(EntityInterface $node)
Implements hook_ENTITY_TYPE_update() for node entities.
function book_node_update(EntityInterface $node) { /** @var \Drupal\book\BookManagerInterface $book_manager */ $book_manager = \Drupal::service('book.manager'); $book_manager->updateOutline($node); }
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https://api.drupal.org/api/drupal/core!modules!book!book.module/function/book_node_update/8.1.x