class IssnValidator in Zircon Profile 8
Same name and namespace in other branches
- 8.0 vendor/symfony/validator/Constraints/IssnValidator.php \Symfony\Component\Validator\Constraints\IssnValidator
Validates whether the value is a valid ISSN.
@author Antonio J. García Lagar <aj@garcialagar.es> @author Bernhard Schussek <bschussek@gmail.com>
Hierarchy
- class \Symfony\Component\Validator\ConstraintValidator implements ConstraintValidatorInterface
- class \Symfony\Component\Validator\Constraints\IssnValidator
Expanded class hierarchy of IssnValidator
See also
https://en.wikipedia.org/wiki/Issn
1 file declares its use of IssnValidator
- IssnValidatorTest.php in vendor/
symfony/ validator/ Tests/ Constraints/ IssnValidatorTest.php
File
- vendor/
symfony/ validator/ Constraints/ IssnValidator.php, line 27
Namespace
Symfony\Component\Validator\ConstraintsView source
class IssnValidator extends ConstraintValidator {
/**
* {@inheritdoc}
*/
public function validate($value, Constraint $constraint) {
if (!$constraint instanceof Issn) {
throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\Issn');
}
if (null === $value || '' === $value) {
return;
}
if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
throw new UnexpectedTypeException($value, 'string');
}
$value = (string) $value;
$canonical = $value;
// 1234-567X
// ^
if (isset($canonical[4]) && '-' === $canonical[4]) {
// remove hyphen
$canonical = substr($canonical, 0, 4) . substr($canonical, 5);
}
elseif ($constraint->requireHyphen) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::MISSING_HYPHEN_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::MISSING_HYPHEN_ERROR)
->addViolation();
}
return;
}
$length = strlen($canonical);
if ($length < 8) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::TOO_SHORT_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::TOO_SHORT_ERROR)
->addViolation();
}
return;
}
if ($length > 8) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::TOO_LONG_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::TOO_LONG_ERROR)
->addViolation();
}
return;
}
// 1234567X
// ^^^^^^^ digits only
if (!ctype_digit(substr($canonical, 0, 7))) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::INVALID_CHARACTERS_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::INVALID_CHARACTERS_ERROR)
->addViolation();
}
return;
}
// 1234567X
// ^ digit, x or X
if (!ctype_digit($canonical[7]) && 'x' !== $canonical[7] && 'X' !== $canonical[7]) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::INVALID_CHARACTERS_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::INVALID_CHARACTERS_ERROR)
->addViolation();
}
return;
}
// 1234567X
// ^ case-sensitive?
if ($constraint->caseSensitive && 'x' === $canonical[7]) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::INVALID_CASE_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::INVALID_CASE_ERROR)
->addViolation();
}
return;
}
// Calculate a checksum. "X" equals 10.
$checkSum = 'X' === $canonical[7] || '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 !== $checkSum % 11) {
if ($this->context instanceof ExecutionContextInterface) {
$this->context
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::CHECKSUM_FAILED_ERROR)
->addViolation();
}
else {
$this
->buildViolation($constraint->message)
->setParameter('{{ value }}', $this
->formatValue($value))
->setCode(Issn::CHECKSUM_FAILED_ERROR)
->addViolation();
}
}
}
}
Members
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
ConstraintValidator:: |
protected | property | 3 | |
ConstraintValidator:: |
protected | function | Wrapper for {@link ExecutionContextInterface::buildViolation} that supports the 2.4 context API. | |
ConstraintValidator:: |
protected | function | Wrapper for {@link ExecutionContextInterface::buildViolation} that supports the 2.4 context API. | |
ConstraintValidator:: |
protected | function | Returns a string representation of the type of the value. | |
ConstraintValidator:: |
protected | function | Returns a string representation of the value. | |
ConstraintValidator:: |
protected | function | Returns a string representation of a list of values. | |
ConstraintValidator:: |
public | function |
Initializes the constraint validator. Overrides ConstraintValidatorInterface:: |
1 |
ConstraintValidator:: |
constant | Whether to cast objects with a "__toString()" method to strings. | ||
ConstraintValidator:: |
constant | Whether to format {@link \DateTime} objects as RFC-3339 dates ("Y-m-d H:i:s"). | ||
IssnValidator:: |
public | function |
Checks if the passed value is valid. Overrides ConstraintValidatorInterface:: |