function book_form_update in Drupal 10

Same name and namespace in other branches

1. 8 core/modules/book/book.module \book_form_update()
2. 6 modules/book/book.pages.inc \book_form_update()
3. 7 modules/book/book.module \book_form_update()
4. 9 core/modules/book/book.module \book_form_update()

Renders a new parent page select element when the book selection changes.

This function is called via Ajax when the selected book is changed on a node or book outline form.

Return value

The rendered parent page select element.

2 string references to 'book_form_update'

BookManager::addFormElements in core/modules/book/src/BookManager.php

drupal6.php in core/modules/migrate_drupal/tests/fixtures/drupal6.php

A database agnostic dump for testing purposes.

File

core/modules/book/book.module, line 208

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

Code

function book_form_update($form, FormStateInterface $form_state) {
  return $form['book']['pid'];
}