function _book_parent_depth_limit

1 book.module _book_parent_depth_limit($book_link)

Finds the depth limit for items in the parent select.

Parameters

$book_link: A fully loaded menu link that is part of the book hierarchy.

Return value

The depth limit for items in the parent select.:

1 call to _book_parent_depth_limit()

book_node_prepare in core/modules/book/book.module: Implements hook_node_prepare().

File

core/modules/book/book.module, line 1030: Allows users to create and organize related content in an 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);
}