public function init($params)
{
self::requireLogin();
if (!isset($params['qr-data'])) {
$params['qr-data'] = Application::getBaseURL()->build();
}
$hParams = new HttpParams($params);
$this->currentParams = $hParams;
$this->doGenerateCode = $hParams->hasValues(array('qr-data', 'qr-size', 'qr-fgcolor', 'qr-bgcolor'));
}
