78 lines
2.8 KiB
PHP
78 lines
2.8 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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/**
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* Validator for Callback constraint.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class CallbackValidator extends ConstraintValidator
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{
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/**
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* {@inheritdoc}
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*/
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public function validate($object, Constraint $constraint)
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{
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if (!$constraint instanceof Callback) {
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throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Callback');
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}
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if (null !== $constraint->callback && null !== $constraint->methods) {
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throw new ConstraintDefinitionException(
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'The Callback constraint supports either the option "callback" '.
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'or "methods", but not both at the same time.'
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);
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}
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// has to be an array so that we can differentiate between callables
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// and method names
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if (null !== $constraint->methods && !is_array($constraint->methods)) {
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throw new UnexpectedTypeException($constraint->methods, 'array');
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}
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$methods = $constraint->methods ?: array($constraint->callback);
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foreach ($methods as $method) {
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if ($method instanceof \Closure) {
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$method($object, $this->context);
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} elseif (is_array($method)) {
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if (!is_callable($method)) {
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if (isset($method[0]) && is_object($method[0])) {
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$method[0] = get_class($method[0]);
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}
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throw new ConstraintDefinitionException(sprintf('%s targeted by Callback constraint is not a valid callable', json_encode($method)));
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}
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call_user_func($method, $object, $this->context);
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} elseif (null !== $object) {
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if (!method_exists($object, $method)) {
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throw new ConstraintDefinitionException(sprintf('Method "%s" targeted by Callback constraint does not exist in class %s', $method, get_class($object)));
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}
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$reflMethod = new \ReflectionMethod($object, $method);
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if ($reflMethod->isStatic()) {
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$reflMethod->invoke(null, $object, $this->context);
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} else {
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$reflMethod->invoke($object, $this->context);
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}
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}
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}
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}
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}
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