public function findAll($conditions = '', array $binds = [], $start = null, $limit = null)
 {
     $result = [];
     foreach (parent::findAll($conditions, $binds, $start, $limit) as $account) {
         if ($account->getOwner() == $this->user()->getId()) {
             $result[] = $account;
         }
     }
     return $result;
 }
 public function findChildren($id)
 {
     return parent::findAll('parent = :parent ORDER BY name ASC', [':parent' => $id]);
 }