book_node_builder($entity_type, NodeInterface $entity, &$form, FormStateInterface $form_state)
Entity form builder to add the book information to the node.
@todo: Remove this in favor of an entity field.
function book_node_builder($entity_type, NodeInterface $entity, &$form, FormStateInterface $form_state) { $entity->book = $form_state->getValue('book'); // Always save a revision for non-administrators. if (!empty($entity->book['bid']) && !\Drupal::currentUser()->hasPermission('administer nodes')) { $entity->setNewRevision(); } }
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https://api.drupal.org/api/drupal/core!modules!book!book.module/function/book_node_builder/8.1.x