function _book_parent_depth_limit

7.x book.module	`_book_parent_depth_limit($book_link)`
6.x book.module	`_book_parent_depth_limit($book_link)`

Find the depth limit for items in the parent select.

2 calls to _book_parent_depth_limit()

book_nodeapi in drupal-6.x/modules/book/book.module: Implementation of hook_nodeapi().
book_outline_form in drupal-6.x/modules/book/book.pages.inc: Build the form to handle all book outline operations via the outline tab.

File

drupal-6.x/modules/book/book.module, line 749: Allows users to structure the pages of a site in a hierarchy or outline.

Code

function _book_parent_depth_limit($book_link) {
  return MENU_MAX_DEPTH - 1 - (($book_link['mlid'] && $book_link['has_children']) ? menu_link_children_relative_depth($book_link) : 0);
}