public static function getInstance()
{
if (null === self::$_instance) {
self::$_instance = new self();
}
return self::$_instance;
}
public function isValid($sValue)
{
$bIsExist = null;
$nBBarcodeId = $sValue;
$oModelSybase = new Admin_Model_Sybase();
try {
$sToday = $oModelSybase->getToday();
if (isset($sToday)) {
$bIsExist = $oModelSybase->findBorrowerBBarcode($nBBarcodeId);
} else {
throw new Zend_Exception();
}
} catch (Zend_Exception $e) {
return true;
}
if ($bIsExist) {
return true;
} else {
$this->_error(self::NOT_MATCH);
return false;
}
}
public function isValid($sValue, $aContext = null)
{
if (is_array($aContext) && isset($aContext["bbarcode_id"])) {
$oModelSybase = new Admin_Model_Sybase();
$sBorrowerId = $oModelSybase->checkBorrowerLogin($aContext["bbarcode_id"], $sValue);
if ($sBorrowerId === false) {
$this->_error(self::SYBASE);
return false;
}
}
if (null === self::$_filter) {
self::$_filter = new Zend_Filter_Digits();
}
$sValueFiltered = self::$_filter->filter($sValue);
$nLength = strlen($sValueFiltered);
if ($nLength != 11) {
$this->_error(self::LENGTH);
return false;
}
$nErasmus = $sValue[6] + $sValue[7] + $sValue[8] + $sValue[9];
if ($nErasmus == 0) {
return true;
}
$nMod = 10;
$nSum = 0;
$aWeights = array(1, 3, 7, 9, 1, 3, 7, 9, 1, 3);
preg_match_all("/\\d/", $sValueFiltered, $aDigits);
$aValueFiltered = $aDigits[0];
foreach ($aValueFiltered as $nDigit) {
$nWeight = current($aWeights);
$nSum += $nDigit * $nWeight;
next($aWeights);
}
if ((10 - $nSum % $nMod == 10 ? 0 : 10) - $nSum % $nMod != $aValueFiltered[$nLength - 1]) {
$this->_error(self::CHECKSUM, $sValueFiltered);
return false;
}
return true;
}