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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Validator\Constraints;
- use Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException;
- use Symfony\Component\PropertyAccess\PropertyAccess;
- use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
- use Symfony\Component\Validator\Constraint;
- use Symfony\Component\Validator\ConstraintValidator;
- use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
- use Symfony\Component\Validator\Exception\UnexpectedTypeException;
- /**
- * Provides a base class for the validation of property comparisons.
- *
- * @author Daniel Holmes <daniel@danielholmes.org>
- * @author Bernhard Schussek <bschussek@gmail.com>
- */
- abstract class AbstractComparisonValidator extends ConstraintValidator
- {
- private $propertyAccessor;
- public function __construct(PropertyAccessorInterface $propertyAccessor = null)
- {
- $this->propertyAccessor = $propertyAccessor;
- }
- /**
- * {@inheritdoc}
- */
- public function validate($value, Constraint $constraint)
- {
- if (!$constraint instanceof AbstractComparison) {
- throw new UnexpectedTypeException($constraint, AbstractComparison::class);
- }
- if (null === $value) {
- return;
- }
- if ($path = $constraint->propertyPath) {
- if (null === $object = $this->context->getObject()) {
- return;
- }
- try {
- $comparedValue = $this->getPropertyAccessor()->getValue($object, $path);
- } catch (NoSuchPropertyException $e) {
- throw new ConstraintDefinitionException(sprintf('Invalid property path "%s" provided to "%s" constraint: ', $path, get_debug_type($constraint)).$e->getMessage(), 0, $e);
- }
- } else {
- $comparedValue = $constraint->value;
- }
- // Convert strings to DateTimes if comparing another DateTime
- // This allows to compare with any date/time value supported by
- // the DateTime constructor:
- // https://php.net/datetime.formats
- if (\is_string($comparedValue) && $value instanceof \DateTimeInterface) {
- // If $value is immutable, convert the compared value to a DateTimeImmutable too, otherwise use DateTime
- $dateTimeClass = $value instanceof \DateTimeImmutable ? \DateTimeImmutable::class : \DateTime::class;
- try {
- $comparedValue = new $dateTimeClass($comparedValue);
- } catch (\Exception $e) {
- throw new ConstraintDefinitionException(sprintf('The compared value "%s" could not be converted to a "%s" instance in the "%s" constraint.', $comparedValue, $dateTimeClass, get_debug_type($constraint)));
- }
- }
- if (!$this->compareValues($value, $comparedValue)) {
- $violationBuilder = $this->context->buildViolation($constraint->message)
- ->setParameter('{{ value }}', $this->formatValue($value, self::OBJECT_TO_STRING | self::PRETTY_DATE))
- ->setParameter('{{ compared_value }}', $this->formatValue($comparedValue, self::OBJECT_TO_STRING | self::PRETTY_DATE))
- ->setParameter('{{ compared_value_type }}', $this->formatTypeOf($comparedValue))
- ->setCode($this->getErrorCode());
- if (null !== $path) {
- $violationBuilder->setParameter('{{ compared_value_path }}', $path);
- }
- $violationBuilder->addViolation();
- }
- }
- private function getPropertyAccessor(): PropertyAccessorInterface
- {
- if (null === $this->propertyAccessor) {
- $this->propertyAccessor = PropertyAccess::createPropertyAccessor();
- }
- return $this->propertyAccessor;
- }
- /**
- * Compares the two given values to find if their relationship is valid.
- *
- * @param mixed $value1 The first value to compare
- * @param mixed $value2 The second value to compare
- *
- * @return bool true if the relationship is valid, false otherwise
- */
- abstract protected function compareValues($value1, $value2);
- /**
- * Returns the error code used if the comparison fails.
- *
- * @return string|null The error code or `null` if no code should be set
- */
- protected function getErrorCode()
- {
- return null;
- }
- }
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