assign() public method

Grands a roles from a user.
public assign ( array $items ) : integer
$items array
return integer number of successful grand
 /**
  * Assign items
  * @param string $id
  * @return array
  */
 public function actionAssign($id)
 {
     $items = Yii::$app->getRequest()->post('items', []);
     $model = new Assignment($id);
     $success = $model->assign($items);
     Yii::$app->getResponse()->format = 'json';
     return array_merge($model->getItems(), ['success' => $success]);
 }