By dawehner on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
8.x
Issue links: 
https://www.drupal.org/node/2209025
Description: 
book_get_flat_menu() \Drupal::service('book.manager')->bookTreeGetFlat()
book_get_books() \Drupal::service('book.manager')->getAllBooks()
book_prev() \Drupal::service('book.outline')->prevLink()
book_next() \Drupal::service('book.outline')->nextLink()
book_children() \Drupal::service('book.outline')->childrenLinks()
Impacts: 
Module developers