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<?php
declare(strict_types=1);
namespace Yiisoft\Validator\Rule;
use Yiisoft\Validator\Exception\InvalidCallbackReturnTypeException;
use Yiisoft\Validator\Exception\UnexpectedRuleException;
use Yiisoft\Validator\Formatter;
use Yiisoft\Validator\FormatterInterface;
use Yiisoft\Validator\Result;
use Yiisoft\Validator\ValidationContext;
final class CallbackHandler implements RuleHandlerInterface
{
private FormatterInterface $formatter;
public function __construct(?FormatterInterface $formatter = null)
$this->formatter = $formatter ?? new Formatter();
}
public function validate(mixed $value, object $rule, ?ValidationContext $context = null): Result
if (!$rule instanceof Callback) {
throw new UnexpectedRuleException(Callback::class, $rule);
$callback = $rule->getCallback();
$callbackResult = $callback($value, $context);
if (!$callbackResult instanceof Result) {
throw new InvalidCallbackReturnTypeException($callbackResult);
$result = new Result();
if ($callbackResult->isValid()) {
return $result;
foreach ($callbackResult->getErrors() as $error) {
$formattedMessage = $this->formatter->format(
$error->getMessage(),
['attribute' => $context?->getAttribute(), 'value' => $value]
);
$result->addError($formattedMessage, $error->getValuePath());
yiisoft /
validator
