I have a book with few children article nodes. I would like to create a navigation block tree, that can be placed anywhere on page.
Problem: Normally if I place book navigation block using context (on book and article content type) - the menu shows all links with the link to main book. However, if I try to print inside tpl.php like this
$block = module_invoke('book', 'block_view', 'navigation'); print render($block['content']);
The menu shows only child items. How to show the parent book as well?