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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\Exception\ValidatorException;
use Symfony\Component\Translation\TranslatorInterface;
/**
* Default implementation of {@link ValidatorInterface}.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class Validator implements ValidatorInterface
{
/**
* @var MetadataFactoryInterface
*/
private $metadataFactory;
/**
* @var ConstraintValidatorFactoryInterface
*/
private $validatorFactory;
/**
* @var TranslatorInterface
*/
private $translator;
/**
* @var null|string
*/
private $translationDomain;
/**
* @var array
*/
private $objectInitializers;
public function __construct(
MetadataFactoryInterface $metadataFactory,
ConstraintValidatorFactoryInterface $validatorFactory,
TranslatorInterface $translator,
$translationDomain = 'validators',
array $objectInitializers = array()
)
{
$this->metadataFactory = $metadataFactory;
$this->validatorFactory = $validatorFactory;
$this->translator = $translator;
$this->translationDomain = $translationDomain;
$this->objectInitializers = $objectInitializers;
}
/**
* {@inheritdoc}
*/
public function getMetadataFactory()
{
return $this->metadataFactory;
}
/**
* {@inheritDoc}
*/
public function getMetadataFor($value)
{
return $this->metadataFactory->getMetadataFor($value);
}
/**
* {@inheritDoc}
*/
public function validate($value, $groups = null, $traverse = false, $deep = false)
{
$visitor = $this->createVisitor($value);
foreach ($this->resolveGroups($groups) as $group) {
$visitor->validate($value, $group, '', $traverse, $deep);
}
return $visitor->getViolations();
}
/**
* {@inheritDoc}
*
* @throws ValidatorException If the metadata for the value does not support properties.
*/
public function validateProperty($containingValue, $property, $groups = null)
{
$visitor = $this->createVisitor($containingValue);
$metadata = $this->metadataFactory->getMetadataFor($containingValue);
if (!$metadata instanceof PropertyMetadataContainerInterface) {
$valueAsString = is_scalar($containingValue)
? '"'.$containingValue.'"'
: 'the value of type '.gettype($containingValue);
throw new ValidatorException(sprintf('The metadata for %s does not support properties.', $valueAsString));
}
foreach ($this->resolveGroups($groups) as $group) {
if (!$metadata->hasPropertyMetadata($property)) {
continue;
}
foreach ($metadata->getPropertyMetadata($property) as $propMeta) {
$propMeta->accept($visitor, $propMeta->getPropertyValue($containingValue), $group, $property);
}
}
return $visitor->getViolations();
}
/**
* {@inheritDoc}
*
* @throws ValidatorException If the metadata for the value does not support properties.
*/
public function validatePropertyValue($containingValue, $property, $value, $groups = null)
{
$visitor = $this->createVisitor($containingValue);
$metadata = $this->metadataFactory->getMetadataFor($containingValue);
if (!$metadata instanceof PropertyMetadataContainerInterface) {
$valueAsString = is_scalar($containingValue)
? '"'.$containingValue.'"'
: 'the value of type '.gettype($containingValue);
throw new ValidatorException(sprintf('The metadata for '.$valueAsString.' does not support properties.'));
}
foreach ($this->resolveGroups($groups) as $group) {
if (!$metadata->hasPropertyMetadata($property)) {
continue;
}
foreach ($metadata->getPropertyMetadata($property) as $propMeta) {
$propMeta->accept($visitor, $value, $group, $property);
}
}
return $visitor->getViolations();
}
/**
* {@inheritDoc}
*/
public function validateValue($value, $constraints, $groups = null)
{
$context = new ExecutionContext($this->createVisitor($value), $this->translator, $this->translationDomain);
$constraints = is_array($constraints) ? $constraints : array($constraints);
foreach ($constraints as $constraint) {
if ($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(
sprintf(
'The constraint %s cannot be validated. Use the method validate() instead.',
get_class($constraint)
)
);
}
$context->validateValue($value, $constraint, '', $groups);
}
return $context->getViolations();
}
/**
* @param mixed $root
*
* @return ValidationVisitor
*/
private function createVisitor($root)
{
return new ValidationVisitor(
$root,
$this->metadataFactory,
$this->validatorFactory,
$this->translator,
$this->translationDomain,
$this->objectInitializers
);
}
/**
* @param null|string|string[] $groups
*
* @return string[]
*/
private function resolveGroups($groups)
{
return $groups ? (array) $groups : array(Constraint::DEFAULT_GROUP);
}
}