/**
* Helper function that calculates the path to a child term and injects it
* into the json list structure.
*/
public static function getFirstPath($tid, &$list)
{
$path = array();
$next_tid = $tid;
$i = 0;
while ($i < 100) {
//prevent infinite loop if inconsistent hierarchy
$parents = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->loadParents($next_tid);
if (count($parents)) {
// Takes first parent.
$parent = array_shift($parents);
$path[] = $parent;
$next_tid = $parent->id();
if (TaxonomyManagerTree::isRoot($parent->id())) {
break;
}
} else {
break;
}
$i++;
}
if (count($path)) {
$path = array_reverse($path);
$root_term = $path[0];
foreach ($list as $current_index => $list_item) {
if ($list_item['key'] == $root_term->id()) {
$index = $current_index;
break;
}
}
if (isset($index)) {
$path[] = \Drupal::entityTypeManager()->getStorage('taxonomy_term')->load($tid);
$list[$index]['children'] = TaxonomyManagerTree::getPartialTree($path);
$list[$index]['lazy'] = FALSE;
$list[$index]['expanded'] = TRUE;
}
}
}
