ExecutionContext.php

<?php

namespace Drupal\Core\Validation;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintViolation;
use Symfony\Component\Validator\ConstraintViolationList;
use Symfony\Component\Validator\ConstraintViolationListInterface;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Symfony\Component\Validator\Mapping\MetadataInterface;
use Symfony\Component\Validator\Mapping\PropertyMetadataInterface;
use Symfony\Component\Validator\Util\PropertyPath;
use Symfony\Component\Validator\Validator\ValidatorInterface;
use Symfony\Component\Validator\Violation\ConstraintViolationBuilderInterface;

/**
 * Defines an execution context class.
 *
 * We do not use the context provided by Symfony as it is marked internal, so
 * this class is pretty much the same, but has some code style changes as well
 * as exceptions for methods we don't support.
 */
class ExecutionContext implements ExecutionContextInterface {
    
    /**
     * The violations generated in the current context.
     */
    protected ConstraintViolationList $violations;
    
    /**
     * The currently validated value.
     */
    protected mixed $value = NULL;
    
    /**
     * The currently validated object.
     */
    protected ?object $object = NULL;
    
    /**
     * The property path leading to the current value.
     */
    protected string $propertyPath = '';
    
    /**
     * The current validation metadata.
     */
    protected ?MetadataInterface $metadata = NULL;
    
    /**
     * The currently validated group.
     */
    protected ?string $group;
    
    /**
     * The currently validated constraint.
     */
    protected ?Constraint $constraint;
    
    /**
     * Stores which objects have been validated in which group.
     */
    protected array $validatedObjects = [];
    
    /**
     * Stores which class constraint has been validated for which object.
     */
    protected array $validatedConstraints = [];
    
    /**
     * Creates a new ExecutionContext.
     *
     * @param \Symfony\Component\Validator\Validator\ValidatorInterface $validator
     *   The validator.
     * @param mixed $root
     *   The root.
     * @param \Drupal\Core\Validation\TranslatorInterface $translator
     *   The translator.
     * @param string|null $translationDomain
     *   (optional) The translation domain.
     *
     * @internal Called by \Drupal\Core\Validation\ExecutionContextFactory.
     *    Should not be used in user code.
     */
    public function __construct(ValidatorInterface $validator, mixed $root, TranslatorInterface $translator, ?string $translationDomain = NULL) {
        $this->violations = new ConstraintViolationList();
    }
    
    /**
     * {@inheritdoc}
     */
    public function setNode(mixed $value, ?object $object, ?MetadataInterface $metadata, string $propertyPath) : void {
        $this->value = $value;
        $this->object = $object;
        $this->metadata = $metadata;
        $this->propertyPath = $propertyPath;
    }
    
    /**
     * {@inheritdoc}
     */
    public function setConstraint(Constraint $constraint) : void {
        $this->constraint = $constraint;
    }
    
    /**
     * {@inheritdoc}
     */
    public function addViolation(string $message, array $params = []) : void {
        $this->violations
            ->add(new ConstraintViolation($this->translator
            ->trans($message, $params, $this->translationDomain), $message, $params, $this->root, $this->propertyPath, $this->value, NULL, NULL, $this->constraint));
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildViolation(string $message, array $parameters = []) : ConstraintViolationBuilderInterface {
        return new ConstraintViolationBuilder($this->violations, $this->constraint, $message, $parameters, $this->root, $this->propertyPath, $this->value, $this->translator, $this->translationDomain);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getViolations() : ConstraintViolationListInterface {
        return $this->violations;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getValidator() : ValidatorInterface {
        return $this->validator;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getRoot() : mixed {
        return $this->root;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getValue() : mixed {
        return $this->value;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getObject() : ?object {
        return $this->object;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getMetadata() : ?MetadataInterface {
        return $this->metadata;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getGroup() : ?string {
        return Constraint::DEFAULT_GROUP;
    }
    
    /**
     * {@inheritdoc}
     */
    public function setGroup(?string $group) : void {
        $this->group = $group;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getClassName() : ?string {
        return get_class($this->object);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getPropertyName() : ?string {
        return $this->metadata instanceof PropertyMetadataInterface ? $this->metadata
            ->getPropertyName() : NULL;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getPropertyPath(string $subPath = '') : string {
        return PropertyPath::append($this->propertyPath, $subPath);
    }
    
    /**
     * {@inheritdoc}
     */
    public function markConstraintAsValidated(string $cacheKey, string $constraintHash) : void {
        $this->validatedConstraints[$cacheKey . ':' . $constraintHash] = TRUE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isConstraintValidated(string $cacheKey, string $constraintHash) : bool {
        return isset($this->validatedConstraints[$cacheKey . ':' . $constraintHash]);
    }
    
    /**
     * {@inheritdoc}
     */
    public function markGroupAsValidated(string $cacheKey, string $groupHash) : void {
        $this->validatedObjects[$cacheKey][$groupHash] = TRUE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isGroupValidated(string $cacheKey, string $groupHash) : bool {
        return isset($this->validatedObjects[$cacheKey][$groupHash]);
    }
    
    /**
     * {@inheritdoc}
     */
    public function markObjectAsInitialized(string $cacheKey) : void {
        throw new \LogicException(ExecutionContextInterface::class . '::markObjectAsInitialized is unsupported.');
    }
    
    /**
     * {@inheritdoc}
     */
    public function isObjectInitialized(string $cacheKey) : bool {
        throw new \LogicException(ExecutionContextInterface::class . '::isObjectInitialized is unsupported.');
    }

}