function CollectionValidator::validate

Overrides ConstraintValidatorInterface::validate

File

vendor/symfony/validator/Constraints/CollectionValidator.php, line 24

Class

CollectionValidator

@author Bernhard Schussek <bschussek@gmail.com>

Namespace

Symfony\Component\Validator\Constraints

Code

public function validate(mixed $value, Constraint $constraint) : void {
    if (!$constraint instanceof Collection) {
        throw new UnexpectedTypeException($constraint, Collection::class);
    }
    if (null === $value) {
        return;
    }
    if (!\is_array($value) && !($value instanceof \Traversable && $value instanceof \ArrayAccess)) {
        throw new UnexpectedValueException($value, 'array|(Traversable&ArrayAccess)');
    }
    // We need to keep the initialized context when CollectionValidator
    // calls itself recursively (Collection constraints can be nested).
    // Since the context of the validator is overwritten when initialize()
    // is called for the nested constraint, the outer validator is
    // acting on the wrong context when the nested validation terminates.
    //
    // A better solution - which should be approached in Symfony 3.0 - is to
    // remove the initialize() method and pass the context as last argument
    // to validate() instead.
    $context = $this->context;
    foreach ($constraint->fields as $field => $fieldConstraint) {
        // bug fix issue #2779
        $existsInArray = \is_array($value) && \array_key_exists($field, $value);
        $existsInArrayAccess = $value instanceof \ArrayAccess && $value->offsetExists($field);
        if ($existsInArray || $existsInArrayAccess) {
            if (\count($fieldConstraint->constraints) > 0) {
                $context->getValidator()
                    ->inContext($context)
                    ->atPath('[' . $field . ']')
                    ->validate($value[$field], $fieldConstraint->constraints);
            }
        }
        elseif (!$fieldConstraint instanceof Optional && !$constraint->allowMissingFields) {
            $context->buildViolation($constraint->missingFieldsMessage)
                ->atPath('[' . $field . ']')
                ->setParameter('{{ field }}', $this->formatValue($field))
                ->setInvalidValue(null)
                ->setCode(Collection::MISSING_FIELD_ERROR)
                ->addViolation();
        }
    }
    if (!$constraint->allowExtraFields) {
        foreach ($value as $field => $fieldValue) {
            if (!isset($constraint->fields[$field])) {
                $context->buildViolation($constraint->extraFieldsMessage)
                    ->atPath('[' . $field . ']')
                    ->setParameter('{{ field }}', $this->formatValue($field))
                    ->setInvalidValue($fieldValue)
                    ->setCode(Collection::NO_SUCH_FIELD_ERROR)
                    ->addViolation();
            }
        }
    }
}