1 book.module _book_node_is_removable($node)

Determines if a node can be removed from the book.

A node can be removed from a book if it is actually in a book and it either is not a top-level page or is a top-level page with no children.


$node: The node to remove from the outline.


core/modules/book/book.module, line 216
Allows users to create and organize related content in an outline.


function _book_node_is_removable($node) {
  return (!empty($node->book['bid']) && (($node->book['bid'] != $node->nid) || !$node->book['has_children']));