function book_node_presave in Drupal 10

Same name and namespace in other branches

1. 8 core/modules/book/book.module \book_node_presave()
2. 7 modules/book/book.module \book_node_presave()
3. 9 core/modules/book/book.module \book_node_presave()

Implements hook_ENTITY_TYPE_presave() for node entities.

File

core/modules/book/book.module, line 253

Allows users to create and organize related content in an outline.

Code

function book_node_presave(EntityInterface $node) {

  // Make sure a new node gets a new menu link.
  if ($node
    ->isNew()) {
    $node->book['nid'] = NULL;
  }
}