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[Validator] Simplified IssnValidator

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This commit is contained in:
Bernhard Schussek 2014-04-10 19:05:39 +02:00
parent 224e70f709
commit bff09f210b
1 changed files with 22 additions and 13 deletions
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35
src/Symfony/Component/Validator/Constraints/IssnValidator.php
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@ -37,26 +37,35 @@ class IssnValidator extends ConstraintValidator
throw new UnexpectedTypeException($value, 'string'); throw new UnexpectedTypeException($value, 'string');
} }
$value = (string) $value;
// Compose regex pattern // Compose regex pattern
$digitsPattern = $constraint->requireHyphen ? '\d{4}-\d{3}' : '\d{4}-?\d{3}'; $digitsPattern = $constraint->requireHyphen ? '\d{4}-\d{3}' : '\d{4}-?\d{3}';
$checksumPattern = $constraint->caseSensitive ? '[\d|X]' : '[\d|X|x]'; $checkSumPattern = $constraint->caseSensitive ? '[\d|X]' : '[\d|X|x]';
$pattern = "/^".$digitsPattern.$checksumPattern."$/"; $pattern = "/^".$digitsPattern.$checkSumPattern."$/";
if (!preg_match($pattern, $value)) { if (!preg_match($pattern, $value)) {
$this->context->addViolation($constraint->message); $this->context->addViolation($constraint->message, array(
} else { '{{ value }}' => $value,
$digits = str_split(strtoupper(str_replace('-', '', $value))); ));
$sum = 0; return;
for ($i = 8; $i > 1; $i--) { }
$sum += $i * (int) array_shift($digits);
}
$checksum = 'X' == reset($digits) ? 10 : (int) reset($digits); $canonical = strtoupper(str_replace('-', '', $value));
if (0 != ($sum + $checksum) % 11) { // Calculate a checksum. "X" equals 10.
$this->context->addViolation($constraint->message); $checkSum = 'X' === $canonical{7} ? 10 : $canonical{7};
}
for ($i = 0; $i < 7; ++$i) {
// Multiply the first digit by 8, the second by 7, etc.
$checkSum += (8-$i) * $canonical{$i};
}
if (0 !== $checkSum % 11) {
$this->context->addViolation($constraint->message, array(
'{{ value }}' => $value,
));
} }
} }
} }