function menu_node_prepare in Drupal 7

Implements hook_node_prepare().

File

modules/menu/menu.module, line 589

Allows administrators to customize the site's navigation menus.

Code

function menu_node_prepare($node) {
  if (empty($node->menu)) {

    // Prepare the node for the edit form so that $node->menu always exists.
    $menu_name = strtok(variable_get('menu_parent_' . $node->type, 'main-menu:0'), ':');
    $item = array();
    if (isset($node->nid)) {
      $mlid = FALSE;

      // Give priority to the default menu
      $type_menus = variable_get('menu_options_' . $node->type, array(
        'main-menu' => 'main-menu',
      ));
      if (in_array($menu_name, $type_menus)) {
        $mlid = db_query_range("SELECT mlid FROM {menu_links} WHERE link_path = :path AND menu_name = :menu_name AND module = 'menu' ORDER BY mlid ASC", 0, 1, array(
          ':path' => 'node/' . $node->nid,
          ':menu_name' => $menu_name,
        ))
          ->fetchField();
      }

      // Check all allowed menus if a link does not exist in the default menu.
      if (!$mlid && !empty($type_menus)) {
        $mlid = db_query_range("SELECT mlid FROM {menu_links} WHERE link_path = :path AND module = 'menu' AND menu_name IN (:type_menus) ORDER BY mlid ASC", 0, 1, array(
          ':path' => 'node/' . $node->nid,
          ':type_menus' => array_values($type_menus),
        ))
          ->fetchField();
      }
      if ($mlid) {
        $item = menu_link_load($mlid);
      }
    }

    // Set default values.
    $node->menu = $item + array(
      'link_title' => '',
      'mlid' => 0,
      'plid' => 0,
      'menu_name' => $menu_name,
      'weight' => 0,
      'options' => array(),
      'module' => 'menu',
      'expanded' => 0,
      'hidden' => 0,
      'has_children' => 0,
      'customized' => 0,
    );
  }

  // Find the depth limit for the parent select.
  if (!isset($node->menu['parent_depth_limit'])) {
    $node->menu['parent_depth_limit'] = _menu_parent_depth_limit($node->menu);
  }
}