public function CallbackValidator::validate

Checks if the passed value is valid.

@api

Parameters

mixed $value The value that should be validated:

Constraint $constraint The constraint for the validation:

Overrides ConstraintValidatorInterface::validate

File

drupal/core/vendor/symfony/validator/Symfony/Component/Validator/Constraints/CallbackValidator.php, line 31

Class

CallbackValidator

Validator for Callback constraint

Namespace

Code

public function validate($object, Constraint $constraint) {
  if (null === $object) {
    return;
  }

  // has to be an array so that we can differentiate between callables
  // and method names
  if (!is_array($constraint->methods)) {
    throw new UnexpectedTypeException($constraint->methods, 'array');
  }
  $methods = $constraint->methods;
  foreach ($methods as $method) {
    if (is_array($method) || $method instanceof \Closure) {
      if (!is_callable($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, $this->context);
    }
    else {
      if (!method_exists($object, $method)) {
        throw new ConstraintDefinitionException(sprintf('Method "%s" targeted by Callback constraint does not exist', $method));
      }
      $object
        ->{$method}($this->context);
    }
  }
}