function taxonomy_get_parents_all

7.x taxonomy.module taxonomy_get_parents_all($tid)
6.x taxonomy.module taxonomy_get_parents_all($tid)

Find all ancestors of a given term ID.

3 calls to taxonomy_get_parents_all()
forum_forum_load in drupal-7.x/modules/forum/forum.module
Returns a tree of all forums for a given taxonomy term ID.
forum_node_view in drupal-7.x/modules/forum/forum.module
Implements hook_node_view().
taxonomy_field_validate in drupal-7.x/modules/taxonomy/taxonomy.module
Implements hook_field_validate().
1 string reference to 'taxonomy_get_parents_all'
taxonomy_terms_static_reset in drupal-7.x/modules/taxonomy/taxonomy.module
Clear all static cache variables for terms.

File

drupal-7.x/modules/taxonomy/taxonomy.module, line 1028
Enables the organization of content into categories.

Code

function taxonomy_get_parents_all($tid) {
  $cache = &drupal_static(__FUNCTION__, array());

  if (isset($cache[$tid])) {
    return $cache[$tid];
  }

  $parents = array();
  if ($term = taxonomy_term_load($tid)) {
    $parents[] = $term;
    $n = 0;
    while ($parent = taxonomy_get_parents($parents[$n]->tid)) {
      $parents = array_merge($parents, $parent);
      $n++;
    }
  }

  $cache[$tid] = $parents;

  return $parents;
}