public function getSetting()
    {
        if ($this->_setting === null) {
            $settingsArray = (empty($this->settings)) ? [] : Json::decode($this->settings);
            $this->_setting = Yii::createObject(['class' => UserSetting::class, 'sender' => $this, 'data' => $settingsArray]);
        }
        
        return $this->_setting;
    }