Stores flattened book trees. Type:

The book manager. Type:

The node storage. Type:

public BookSettingsForm::validateForm(array &$form, FormStateInterface

public BookOutlineStorageInterface::insert($link

public BookAdminEditForm::buildForm(array $form, FormStateInterface

Defines a storage class for books outline. Hierarchy class \Drupal\book\

public BookBreadcrumbBuilder::__construct(EntityManagerInterface

protected BookManager::doBookTreeCheckAccess(&$tree)

public BookManagerInterface::getTableOfContents($bid,