skeeks\cms\models\User::checkDataBeforeDelete PHP Method

    public function checkDataBeforeDelete($e)
    {
        if (in_array($this->username, static::getProtectedUsernames())) {
            throw new Exception(\Yii::t('skeeks/cms', 'This user can not be removed'));
        }
        if ($this->id == \Yii::$app->user->identity->id) {
            throw new Exception(\Yii::t('skeeks/cms', 'You can not delete yourself'));
        }
    }