function book_menus_block_view in Book Menus 7

Implements hook_block_view().

Main differences from core book.module

• No "All Pages" (use core for that).
• No shifting the tree to remove the first element.
• Do not pass the book menu item to menu_tree_output (want full tree).

File

./book_menus.module, line 30

Functionality for book_menus.module.

Code

function book_menus_block_view($delta = '') {

  // Store the renderable block.
  $block = array();

  // Start with no bid.
  $current_bid = 0;

  // Try to get the node.
  if ($node = menu_get_object()) {

    // Check if this node had a book.
    $current_bid = empty($node->book['bid']) ? 0 : $node->book['bid'];
  }

  // This node has a book.
  if ($current_bid) {

    // Only display this block when the user is browsing a book.
    $select = db_select('node', 'n')
      ->fields('n', array(
      'title',
    ))
      ->condition('n.nid', $node->book['bid'])
      ->addTag('node_access');

    // Get the title.
    $title = $select
      ->execute()
      ->fetchField();

    // Only show the block if the user has view access for the top-level node.
    if ($title) {

      // Build the full menu tree.
      $tree = menu_tree_all_data($node->book['menu_name']);

      // Set title to the main book node.
      $block['subject'] = $title;

      // Add the tree.
      $block['content'] = menu_tree_output($tree);
    }
  }

  // Return the renderable block.
  return $block;
}