public function isStarted()
    {
        return (!is_null($this->userSession) && !is_null($this->getUserConfiguration()->getStartAt())) &&
            !is_null($this->session->get('user_session'));
    }
public function isStarted()
    {
        return (!is_null($this->userSession) && !is_null($this->getUserConfiguration()->getStartAt())) &&
            !is_null($this->session->get('user_session'));
    }
public function isStarted ( ) { return ( ! is_null ( $ this -> userSession ) && ! is_null ( $ this -> getUserConfiguration ( ) -> getStartAt ( ) ) ) && ! is_null ( $ this -> session -> get ( 'user_session' ) ) ; }
Return if questionnaire has started

@return boolean
Return if questionnaire has started