private function validateBarcodeKeys(Pass $pass)
{
$validBarcodeFormats = array(Barcode::TYPE_QR, Barcode::TYPE_AZTEC, Barcode::TYPE_PDF_417, Barcode::TYPE_CODE_128);
$barcode = $pass->getBarcode();
if (!$barcode) {
return;
}
if (!in_array($barcode->getFormat(), $validBarcodeFormats)) {
$this->addError(self::BARCODE_FORMAT_INVALID);
}
if (!is_string($barcode->getMessage())) {
$this->addError(self::BARCODE_MESSAGE_INVALID);
}
}
