/**
* Get tree of terms
* @param $vid
* @param bool $parentID
* @return array
*/
public static function getTree($vid, $parentID = false)
{
$rows = static::findHierarchy($vid, $parentID);
$hierarchy = static::indexByChild($rows);
/** @var TaxonomyTerm [] $models */
$models = TaxonomyTerm::find()->indexBy('id')->where(['vid' => $vid])->all();
//add child to parents by list
foreach ($hierarchy as $cID => $pID) {
if (isset($models[$pID]) && isset($models[$cID])) {
$models[$pID]->addChild($models[$cID]);
}
}
$roots = [];
foreach ($models as $id => $model) {
if (isset($hierarchy[$id]) && $hierarchy[$id] == 0) {
$roots[$id] = $model;
}
}
return isset($models[$parentID]) ? $models[$parentID]->child : $roots;
}
/**
* Find model by ID.
*
* @param integer|array $id Model ID
*
* @return TaxonomyTerm
*
* @throws HttpException 404 error if model not found
*/
protected function findModel($id, $vid)
{
if (is_array($id)) {
$model = TaxonomyTerm::find()->where(['vid' => $vid, 'id' => $id])->all();
} else {
$model = TaxonomyTerm::find()->where(['vid' => $vid, 'id' => $id])->one();
}
if ($model !== null) {
return $model;
} else {
throw new HttpException(404);
}
}