File "ClassMetadata.php"
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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\Mapping;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\Constraints\Cascade;
use Symfony\Component\Validator\Constraints\Composite;
use Symfony\Component\Validator\Constraints\GroupSequence;
use Symfony\Component\Validator\Constraints\Traverse;
use Symfony\Component\Validator\Constraints\Valid;
use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
use Symfony\Component\Validator\Exception\GroupDefinitionException;
/**
* Default implementation of {@link ClassMetadataInterface}.
*
* This class supports serialization and cloning.
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Fabien Potencier <fabien@symfony.com>
*/
class ClassMetadata extends GenericMetadata implements ClassMetadataInterface
{
/**
* @var string
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getClassName()} instead.
*/
public $name;
/**
* @var string
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getDefaultGroup()} instead.
*/
public $defaultGroup;
/**
* @var MemberMetadata[][]
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getPropertyMetadata()} instead.
*/
public $members = [];
/**
* @var PropertyMetadata[]
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getPropertyMetadata()} instead.
*/
public $properties = [];
/**
* @var GetterMetadata[]
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getPropertyMetadata()} instead.
*/
public $getters = [];
/**
* @var array
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getGroupSequence()} instead.
*/
public $groupSequence = [];
/**
* @var bool
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link isGroupSequenceProvider()} instead.
*/
public $groupSequenceProvider = false;
/**
* The strategy for traversing traversable objects.
*
* By default, only instances of {@link \Traversable} are traversed.
*
* @var int
*
* @internal This property is public in order to reduce the size of the
* class' serialized representation. Do not access it. Use
* {@link getTraversalStrategy()} instead.
*/
public $traversalStrategy = TraversalStrategy::IMPLICIT;
/**
* @var \ReflectionClass
*/
private $reflClass;
public function __construct(string $class)
{
$this->name = $class;
// class name without namespace
if (false !== $nsSep = strrpos($class, '\\')) {
$this->defaultGroup = substr($class, $nsSep + 1);
} else {
$this->defaultGroup = $class;
}
}
/**
* {@inheritdoc}
*/
public function __sleep()
{
$parentProperties = parent::__sleep();
// Don't store the cascading strategy. Classes never cascade.
unset($parentProperties[array_search('cascadingStrategy', $parentProperties)]);
return array_merge($parentProperties, [
'getters',
'groupSequence',
'groupSequenceProvider',
'members',
'name',
'properties',
'defaultGroup',
]);
}
/**
* {@inheritdoc}
*/
public function getClassName()
{
return $this->name;
}
/**
* Returns the name of the default group for this class.
*
* For each class, the group "Default" is an alias for the group
* "<ClassName>", where <ClassName> is the non-namespaced name of the
* class. All constraints implicitly or explicitly assigned to group
* "Default" belong to both of these groups, unless the class defines
* a group sequence.
*
* If a class defines a group sequence, validating the class in "Default"
* will validate the group sequence. The constraints assigned to "Default"
* can still be validated by validating the class in "<ClassName>".
*
* @return string
*/
public function getDefaultGroup()
{
return $this->defaultGroup;
}
/**
* {@inheritdoc}
*
* If the constraint {@link Cascade} is added, the cascading strategy will be
* changed to {@link CascadingStrategy::CASCADE}.
*
* If the constraint {@link Traverse} is added, the traversal strategy will be
* changed. Depending on the $traverse property of that constraint,
* the traversal strategy will be set to one of the following:
*
* - {@link TraversalStrategy::IMPLICIT} by default
* - {@link TraversalStrategy::NONE} if $traverse is disabled
* - {@link TraversalStrategy::TRAVERSE} if $traverse is enabled
*/
public function addConstraint(Constraint $constraint)
{
$this->checkConstraint($constraint);
if ($constraint instanceof Traverse) {
if ($constraint->traverse) {
// If traverse is true, traversal should be explicitly enabled
$this->traversalStrategy = TraversalStrategy::TRAVERSE;
} else {
// If traverse is false, traversal should be explicitly disabled
$this->traversalStrategy = TraversalStrategy::NONE;
}
// The constraint is not added
return $this;
}
if ($constraint instanceof Cascade) {
if (\PHP_VERSION_ID < 70400) {
throw new ConstraintDefinitionException(sprintf('The constraint "%s" requires PHP 7.4.', Cascade::class));
}
$this->cascadingStrategy = CascadingStrategy::CASCADE;
foreach ($this->getReflectionClass()->getProperties() as $property) {
if ($property->hasType() && (('array' === $type = $property->getType()->getName()) || class_exists(($type)))) {
$this->addPropertyConstraint($property->getName(), new Valid());
}
}
// The constraint is not added
return $this;
}
$constraint->addImplicitGroupName($this->getDefaultGroup());
parent::addConstraint($constraint);
return $this;
}
/**
* Adds a constraint to the given property.
*
* @return $this
*/
public function addPropertyConstraint(string $property, Constraint $constraint)
{
if (!isset($this->properties[$property])) {
$this->properties[$property] = new PropertyMetadata($this->getClassName(), $property);
$this->addPropertyMetadata($this->properties[$property]);
}
$constraint->addImplicitGroupName($this->getDefaultGroup());
$this->properties[$property]->addConstraint($constraint);
return $this;
}
/**
* @param Constraint[] $constraints
*
* @return $this
*/
public function addPropertyConstraints(string $property, array $constraints)
{
foreach ($constraints as $constraint) {
$this->addPropertyConstraint($property, $constraint);
}
return $this;
}
/**
* Adds a constraint to the getter of the given property.
*
* The name of the getter is assumed to be the name of the property with an
* uppercased first letter and the prefix "get", "is" or "has".
*
* @return $this
*/
public function addGetterConstraint(string $property, Constraint $constraint)
{
if (!isset($this->getters[$property])) {
$this->getters[$property] = new GetterMetadata($this->getClassName(), $property);
$this->addPropertyMetadata($this->getters[$property]);
}
$constraint->addImplicitGroupName($this->getDefaultGroup());
$this->getters[$property]->addConstraint($constraint);
return $this;
}
/**
* Adds a constraint to the getter of the given property.
*
* @return $this
*/
public function addGetterMethodConstraint(string $property, string $method, Constraint $constraint)
{
if (!isset($this->getters[$property])) {
$this->getters[$property] = new GetterMetadata($this->getClassName(), $property, $method);
$this->addPropertyMetadata($this->getters[$property]);
}
$constraint->addImplicitGroupName($this->getDefaultGroup());
$this->getters[$property]->addConstraint($constraint);
return $this;
}
/**
* @param Constraint[] $constraints
*
* @return $this
*/
public function addGetterConstraints(string $property, array $constraints)
{
foreach ($constraints as $constraint) {
$this->addGetterConstraint($property, $constraint);
}
return $this;
}
/**
* @param Constraint[] $constraints
*
* @return $this
*/
public function addGetterMethodConstraints(string $property, string $method, array $constraints)
{
foreach ($constraints as $constraint) {
$this->addGetterMethodConstraint($property, $method, $constraint);
}
return $this;
}
/**
* Merges the constraints of the given metadata into this object.
*/
public function mergeConstraints(self $source)
{
if ($source->isGroupSequenceProvider()) {
$this->setGroupSequenceProvider(true);
}
foreach ($source->getConstraints() as $constraint) {
$this->addConstraint(clone $constraint);
}
foreach ($source->getConstrainedProperties() as $property) {
foreach ($source->getPropertyMetadata($property) as $member) {
$member = clone $member;
foreach ($member->getConstraints() as $constraint) {
if (\in_array($constraint::DEFAULT_GROUP, $constraint->groups, true)) {
$member->constraintsByGroup[$this->getDefaultGroup()][] = $constraint;
}
$constraint->addImplicitGroupName($this->getDefaultGroup());
}
$this->addPropertyMetadata($member);
if ($member instanceof MemberMetadata && !$member->isPrivate($this->name)) {
$property = $member->getPropertyName();
if ($member instanceof PropertyMetadata && !isset($this->properties[$property])) {
$this->properties[$property] = $member;
} elseif ($member instanceof GetterMetadata && !isset($this->getters[$property])) {
$this->getters[$property] = $member;
}
}
}
}
}
/**
* {@inheritdoc}
*/
public function hasPropertyMetadata(string $property)
{
return \array_key_exists($property, $this->members);
}
/**
* {@inheritdoc}
*/
public function getPropertyMetadata(string $property)
{
return $this->members[$property] ?? [];
}
/**
* {@inheritdoc}
*/
public function getConstrainedProperties()
{
return array_keys($this->members);
}
/**
* Sets the default group sequence for this class.
*
* @param string[]|GroupSequence $groupSequence An array of group names
*
* @return $this
*
* @throws GroupDefinitionException
*/
public function setGroupSequence($groupSequence)
{
if ($this->isGroupSequenceProvider()) {
throw new GroupDefinitionException('Defining a static group sequence is not allowed with a group sequence provider.');
}
if (\is_array($groupSequence)) {
$groupSequence = new GroupSequence($groupSequence);
}
if (\in_array(Constraint::DEFAULT_GROUP, $groupSequence->groups, true)) {
throw new GroupDefinitionException(sprintf('The group "%s" is not allowed in group sequences.', Constraint::DEFAULT_GROUP));
}
if (!\in_array($this->getDefaultGroup(), $groupSequence->groups, true)) {
throw new GroupDefinitionException(sprintf('The group "%s" is missing in the group sequence.', $this->getDefaultGroup()));
}
$this->groupSequence = $groupSequence;
return $this;
}
/**
* {@inheritdoc}
*/
public function hasGroupSequence()
{
return $this->groupSequence && \count($this->groupSequence->groups) > 0;
}
/**
* {@inheritdoc}
*/
public function getGroupSequence()
{
return $this->groupSequence;
}
/**
* Returns a ReflectionClass instance for this class.
*
* @return \ReflectionClass
*/
public function getReflectionClass()
{
if (!$this->reflClass) {
$this->reflClass = new \ReflectionClass($this->getClassName());
}
return $this->reflClass;
}
/**
* Sets whether a group sequence provider should be used.
*
* @throws GroupDefinitionException
*/
public function setGroupSequenceProvider(bool $active)
{
if ($this->hasGroupSequence()) {
throw new GroupDefinitionException('Defining a group sequence provider is not allowed with a static group sequence.');
}
if (!$this->getReflectionClass()->implementsInterface('Symfony\Component\Validator\GroupSequenceProviderInterface')) {
throw new GroupDefinitionException(sprintf('Class "%s" must implement GroupSequenceProviderInterface.', $this->name));
}
$this->groupSequenceProvider = $active;
}
/**
* {@inheritdoc}
*/
public function isGroupSequenceProvider()
{
return $this->groupSequenceProvider;
}
/**
* {@inheritdoc}
*/
public function getCascadingStrategy()
{
return $this->cascadingStrategy;
}
private function addPropertyMetadata(PropertyMetadataInterface $metadata)
{
$property = $metadata->getPropertyName();
$this->members[$property][] = $metadata;
}
private function checkConstraint(Constraint $constraint)
{
if (!\in_array(Constraint::CLASS_CONSTRAINT, (array) $constraint->getTargets(), true)) {
throw new ConstraintDefinitionException(sprintf('The constraint "%s" cannot be put on classes.', get_debug_type($constraint)));
}
if ($constraint instanceof Composite) {
foreach ($constraint->getNestedConstraints() as $nestedConstraint) {
$this->checkConstraint($nestedConstraint);
}
}
}
}