public function init()
{
parent::init();
if (empty($this->secret)) {
if (!empty(Yii::$app->get('reCaptcha')->secret)) {
$this->secret = Yii::$app->reCaptcha->secret;
} else {
throw new InvalidConfigException('Required `secret` param isn\'t set.');
}
}
if ($this->message === null) {
$this->message = Yii::t('yii', 'The verification code is incorrect.');
}
}