Extend LS RPC with get_participant_properties_by_token

gistfile1.txt

   /**
    * RPC Routine to return settings of a token/participant of a survey .
    *
    * @access public
    * @param string $sSessionKey Auth credentials
    * @param int $iSurveyID Id of the Survey to get token properties
    * @param int $sToken Token of the participant to check
    * @param array $aTokenProperties The properties to get
    * @return array The requested values
    */
    public function get_participant_properties_by_token($sSessionKey, $iSurveyID, $sToken, $aTokenProperties)
    {
        if ($this->_checkSessionKey($sSessionKey))
        {
            $surveyidExists = Survey::model()->findByPk($iSurveyID);
            if (!isset($surveyidExists))
                return array('status' => 'Error: Invalid survey ID');
            if (Permission::model()->hasSurveyPermission($iSurveyID, 'tokens', 'read'))
            {
                if(!tableExists("{{tokens_$iSurveyID}}"))
                    return array('status' => 'Error: No token table');
                $token = Token::model($iSurveyID)->findByAttributes(array('token' => $sToken));
                if (!isset($token))
                    return array('status' => 'Error: Invalid tokenid');
                $result = array_intersect_key($token->attributes, array_flip($aTokenProperties));
                if (empty($result))
                {
                    return array('status' => 'No valid Data');
                }
                else
                {
                    return $result;
                }
            }
            else
                return array('status' => 'No permission');
        }
        else
            return array('status' => 'Invalid Session Key');
    }