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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;
use Symfony\Component\Validator\Constraints\Valid;
use Symfony\Component\Validator\Mapping\ClassMetadataFactoryInterface;
use Symfony\Component\Validator\Exception\ValidatorException;
/**
* The default implementation of the ValidatorInterface.
*
* This service can be used to validate objects, properties and raw values
* against constraints.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Bernhard Schussek <bschussek@gmail.com>
*
* @api
*/
class Validator implements ValidatorInterface
{
protected $metadataFactory;
protected $validatorFactory;
protected $validatorInitializers;
public function __construct(
ClassMetadataFactoryInterface $metadataFactory,
ConstraintValidatorFactoryInterface $validatorFactory,
array $validatorInitializers = array()
)
{
$this->metadataFactory = $metadataFactory;
$this->validatorFactory = $validatorFactory;
$this->validatorInitializers = $validatorInitializers;
}
/**
* {@inheritDoc}
*/
public function getMetadataFactory()
{
return $this->metadataFactory;
}
/**
* {@inheritDoc}
*
* @api
*/
public function validate($object, $groups = null)
{
$metadata = $this->metadataFactory->getClassMetadata(get_class($object));
$walk = function(GraphWalker $walker, $group) use ($metadata, $object) {
return $walker->walkObject($metadata, $object, $group, '');
};
return $this->validateGraph($object, $walk, $groups);
}
/**
* {@inheritDoc}
*
* @api
*/
public function validateProperty($object, $property, $groups = null)
{
$metadata = $this->metadataFactory->getClassMetadata(get_class($object));
$walk = function(GraphWalker $walker, $group) use ($metadata, $property, $object) {
return $walker->walkProperty($metadata, $property, $object, $group, '');
};
return $this->validateGraph($object, $walk, $groups);
}
/**
* {@inheritDoc}
*
* @api
*/
public function validatePropertyValue($class, $property, $value, $groups = null)
{
$metadata = $this->metadataFactory->getClassMetadata($class);
$walk = function(GraphWalker $walker, $group) use ($metadata, $property, $value) {
return $walker->walkPropertyValue($metadata, $property, $value, $group, '');
};
return $this->validateGraph($class, $walk, $groups);
}
/**
* {@inheritDoc}
*
* @api
*/
public function validateValue($value, Constraint $constraint, $groups = null)
{
if ($constraint instanceof Valid) {
// Why can't the Valid constraint be executed directly?
//
// It cannot be executed like regular other constraints, because regular
// constraints are only executed *if they belong to the validated group*.
// The Valid constraint, on the other hand, is always executed and propagates
// the group to the cascaded object. The propagated group depends on
//
// * Whether a group sequence is currently being executed. Then the default
// group is propagated.
//
// * Otherwise the validated group is propagated.
throw new ValidatorException('The constraint ' . get_class($constraint) . ' cannot be validated. Use the method validate() instead.');
}
$walk = function(GraphWalker $walker, $group) use ($constraint, $value) {
return $walker->walkConstraint($constraint, $value, $group, '');
};
return $this->validateGraph('', $walk, $groups);
}
protected function validateGraph($root, \Closure $walk, $groups = null)
{
$walker = new GraphWalker($root, $this->metadataFactory, $this->validatorFactory, $this->validatorInitializers);
$groups = $groups ? (array) $groups : array(Constraint::DEFAULT_GROUP);
foreach ($groups as $group) {
$walk($walker, $group);
}
return $walker->getViolations();
}
}
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