skeeks\cms\models\forms\PasswordChangeForm::changePassword PHP Метод

    public function changePassword()
    {
        if ($this->validate() && $this->new_password == $this->new_password_confirm && $this->new_password) {
            $this->user->setPassword($this->new_password);
            return $this->user->save(false);
        } else {
            return false;
        }
    }

 public function update(AdminAction $adminAction)
 {
     /**
      * @var $model CmsUser
      */
     $model = $this->model;
     $relatedModel = $model->relatedPropertiesModel;
     $passwordChange = new PasswordChangeForm(['user' => $model]);
     $passwordChange->scenario = PasswordChangeForm::SCENARION_NOT_REQUIRED;
     $rr = new RequestResponse();
     if (\Yii::$app->request->isAjax && !\Yii::$app->request->isPjax) {
         $model->load(\Yii::$app->request->post());
         $relatedModel->load(\Yii::$app->request->post());
         $passwordChange->load(\Yii::$app->request->post());
         return \yii\widgets\ActiveForm::validateMultiple([$model, $relatedModel, $passwordChange]);
     }
     if ($rr->isRequestPjaxPost()) {
         $model->load(\Yii::$app->request->post());
         $relatedModel->load(\Yii::$app->request->post());
         $passwordChange->load(\Yii::$app->request->post());
         if ($model->save() && $relatedModel->save()) {
             \Yii::$app->getSession()->setFlash('success', \Yii::t('skeeks/cms', 'Saved'));
             if ($passwordChange->new_password) {
                 if (!$passwordChange->changePassword()) {
                     \Yii::$app->getSession()->setFlash('error', "Пароль не изменен");
                 }
             }
             if (\Yii::$app->request->post('submit-btn') == 'apply') {
             } else {
                 return $this->redirect($this->indexUrl);
             }
             $model->refresh();
         } else {
             $errors = [];
             if ($model->getErrors()) {
                 foreach ($model->getErrors() as $error) {
                     $errors[] = implode(', ', $error);
                 }
             }
             \Yii::$app->getSession()->setFlash('error', \Yii::t('skeeks/cms', 'Could not save') . ". " . implode($errors));
         }
     }
     return $this->render('_form', ['model' => $model, 'relatedModel' => $relatedModel, 'passwordChange' => $passwordChange]);
 }