CallbackValidator.php in Zircon Profile 8

Namespace

Symfony\Component\Validator\Constraints

File

vendor/symfony/validator/Constraints/CallbackValidator.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;

/**
 * Validator for Callback constraint.
 *
 * @author Bernhard Schussek <[e-mail]>
 */
class CallbackValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($object, Constraint $constraint) {
    if (!$constraint instanceof Callback) {
      throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\Callback');
    }
    if (null !== $constraint->callback && null !== $constraint->methods) {
      throw new ConstraintDefinitionException('The Callback constraint supports either the option "callback" ' . 'or "methods", but not both at the same time.');
    }

    // has to be an array so that we can differentiate between callables
    // and method names
    if (null !== $constraint->methods && !is_array($constraint->methods)) {
      throw new UnexpectedTypeException($constraint->methods, 'array');
    }
    $methods = $constraint->methods ?: array(
      $constraint->callback,
    );
    foreach ($methods as $method) {
      if ($method instanceof \Closure) {
        $method($object, $this->context);
      }
      elseif (is_array($method)) {
        if (!is_callable($method)) {
          if (isset($method[0]) && is_object($method[0])) {
            $method[0] = get_class($method[0]);
          }
          throw new ConstraintDefinitionException(sprintf('%s targeted by Callback constraint is not a valid callable', json_encode($method)));
        }
        call_user_func($method, $object, $this->context);
      }
      elseif (null !== $object) {
        if (!method_exists($object, $method)) {
          throw new ConstraintDefinitionException(sprintf('Method "%s" targeted by Callback constraint does not exist in class %s', $method, get_class($object)));
        }
        $reflMethod = new \ReflectionMethod($object, $method);
        if ($reflMethod
          ->isStatic()) {
          $reflMethod
            ->invoke(null, $object, $this->context);
        }
        else {
          $reflMethod
            ->invoke($object, $this->context);
        }
      }
    }
  }

}

Classes

Name	Description
CallbackValidator	Validator for Callback constraint.