public BookManager::getParentDepthLimit(array $book_link)
Finds the depth limit for items in the parent select.
Parameters
array $book_link: A fully loaded menu link that is part of the book hierarchy.
Return value
int The depth limit for items in the parent select.
Overrides BookManagerInterface::getParentDepthLimit
File
- core/modules/book/src/BookManager.php, line 134
Class
- BookManager
- Defines a book manager.
Namespace
Drupal\book
Code
public function getParentDepthLimit(array $book_link) { return static::BOOK_MAX_DEPTH - 1 - (($book_link['bid'] && $book_link['has_children']) ? $this->findChildrenRelativeDepth($book_link) : 0); }
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