function book_node_presave

book_node_presave(EntityInterface $node)

Implements hook_ENTITY_TYPE_presave() for node entities.

File

core/modules/book/book.module, line 252

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;
  }
}