vendor/symfony/validator/Constraints/ExpressionValidator.php line 27

  1. <?php
  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.  */
  12. namespace Symfony\Component\Validator\Constraints;
  14. use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
  15. use Symfony\Component\Validator\Constraint;
  16. use Symfony\Component\Validator\ConstraintValidator;
  17. use Symfony\Component\Validator\Exception\UnexpectedTypeException;
  19. /**
  20.  * @author Fabien Potencier <fabien@symfony.com>
  21.  * @author Bernhard Schussek <bschussek@symfony.com>
  22.  */
  23. class ExpressionValidator extends ConstraintValidator
  24. {
  25.     private ?ExpressionLanguage $expressionLanguage;
  27.     public function __construct(ExpressionLanguage $expressionLanguage = null)
  28.     {
  29.         $this->expressionLanguage = $expressionLanguage;
  30.     }
  32.     public function validate(mixed $value, Constraint $constraint)
  33.     {
  34.         if (!$constraint instanceof Expression) {
  35.             throw new UnexpectedTypeException($constraint, Expression::class);
  36.         }
  38.         $variables = $constraint->values;
  39.         $variables['value'] = $value;
  40.         $variables['this'] = $this->context->getObject();
  42.         if ($constraint->negate xor $this->getExpressionLanguage()->evaluate($constraint->expression, $variables)) {
  43.             $this->context->buildViolation($constraint->message)
  44.                 ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING))
  45.                 ->setCode(Expression::EXPRESSION_FAILED_ERROR)
  46.                 ->addViolation();
  47.         }
  48.     }
  50.     private function getExpressionLanguage(): ExpressionLanguage
  51.     {
  52.         return $this->expressionLanguage ??= new ExpressionLanguage();
  53.     }
  54. }