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[yaffs-website] / vendor / symfony / validator / Constraints / CurrencyValidator.php
1 <?php
2
3 /*
4  * This file is part of the Symfony package.
5  *
6  * (c) Fabien Potencier <fabien@symfony.com>
7  *
8  * For the full copyright and license information, please view the LICENSE
9  * file that was distributed with this source code.
10  */
11
12 namespace Symfony\Component\Validator\Constraints;
13
14 use Symfony\Component\Intl\Intl;
15 use Symfony\Component\Validator\Constraint;
16 use Symfony\Component\Validator\ConstraintValidator;
17 use Symfony\Component\Validator\Exception\UnexpectedTypeException;
18
19 /**
20  * Validates whether a value is a valid currency.
21  *
22  * @author Miha Vrhovnik <miha.vrhovnik@pagein.si>
23  * @author Bernhard Schussek <bschussek@gmail.com>
24  */
25 class CurrencyValidator extends ConstraintValidator
26 {
27     /**
28      * {@inheritdoc}
29      */
30     public function validate($value, Constraint $constraint)
31     {
32         if (!$constraint instanceof Currency) {
33             throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Currency');
34         }
35
36         if (null === $value || '' === $value) {
37             return;
38         }
39
40         if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
41             throw new UnexpectedTypeException($value, 'string');
42         }
43
44         $value = (string) $value;
45         $currencies = Intl::getCurrencyBundle()->getCurrencyNames();
46
47         if (!isset($currencies[$value])) {
48             $this->context->buildViolation($constraint->message)
49                 ->setParameter('{{ value }}', $this->formatValue($value))
50                 ->setCode(Currency::NO_SUCH_CURRENCY_ERROR)
51                 ->addViolation();
52         }
53     }
54 }