class CallbackValidator in Plug 7

Validator for Callback constraint.

@author Bernhard Schussek <[e-mail]>

@api

Hierarchy

• class \Symfony\Component\Validator\ConstraintValidator implements ConstraintValidatorInterface
  • class \Symfony\Component\Validator\Constraints\CallbackValidator

1 file declares its use of CallbackValidator

CallbackValidatorTest.php in lib/Symfony/validator/Symfony/Component/Validator/Tests/Constraints/CallbackValidatorTest.php

File

lib/Symfony/validator/Symfony/Component/Validator/Constraints/CallbackValidator.php, line 26

Namespace

Symfony\Component\Validator\Constraints

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)) {
          throw new ConstraintDefinitionException(sprintf('"%s::%s" targeted by Callback constraint is not a valid callable', $method[0], $method[1]));
        }
        call_user_func($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', $method));
        }
        $reflMethod = new \ReflectionMethod($object, $method);
        if ($reflMethod
          ->isStatic()) {
          $reflMethod
            ->invoke(null, $object, $this->context);
        }
        else {
          $reflMethod
            ->invoke($object, $this->context);
        }
      }
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CallbackValidator::validate	public	function	Checks if the passed value is valid. Overrides ConstraintValidatorInterface::validate
ConstraintValidator::$context	protected	property
ConstraintValidator::buildViolation Deprecated	protected	function	Wrapper for {@link ExecutionContextInterface::buildViolation} that supports the 2.4 context API.
ConstraintValidator::buildViolationInContext Deprecated	protected	function	Wrapper for {@link ExecutionContextInterface::buildViolation} that supports the 2.4 context API.
ConstraintValidator::formatTypeOf	protected	function	Returns a string representation of the type of the value.
ConstraintValidator::formatValue	protected	function	Returns a string representation of the value.
ConstraintValidator::formatValues	protected	function	Returns a string representation of a list of values.
ConstraintValidator::initialize	public	function	Initializes the constraint validator. Overrides ConstraintValidatorInterface::initialize	1
ConstraintValidator::OBJECT_TO_STRING		constant	Whether to cast objects with a "__toString()" method to strings.
ConstraintValidator::PRETTY_DATE		constant	Whether to format {@link \DateTime} objects as RFC-3339 dates ("Y-m-d H:i:s").