/**
* get the path bar for this anchor
*
* This function is used to build a path bar relative to the anchor.
* For example, if you are displaying an article related to a category,
* the path bar has to mention the category. You can use following code
* to do that:
* [php]
* $anchor = Anchors::get($article['anchor']);
* $context['path_bar'] = array_merge($context['path_bar'], $anchor->get_path_bar());
* [/php]
*
* @return an array of $url => $label, or NULL on error
*
* @see shared/anchor.php
*/
function get_path_bar()
{
// no item bound
if (!isset($this->item['id'])) {
return NULL;
}
// standard path
$path = Anchor::get_path_bar();
// add categories root
if (!$this->item['anchor']) {
$path = array_merge(array('categories/' => i18n::s('Categories')), $path);
}
return $path;
}