ValidationErrorTrait.php

См. документацию.

<?php
 
declare(strict_types=1);
 
namespace Bitrix\Main\Validation\Rule;
 
use Bitrix\Main\Localization\LocalizableMessageInterface;
use Bitrix\Main\Validation\ValidationError;
use Bitrix\Main\Validation\ValidationResult;
use Bitrix\Main\Validation\Validator\ValidatorInterface;
 
trait ValidationErrorTrait
{
    protected string|LocalizableMessageInterface|null $errorMessage = null;
 
    protected function getError(): ?ValidationError
    {
        return null !== $this->errorMessage ? new ValidationError($this->errorMessage) : null;
    }
 
    protected function replaceWithCustomError(ValidationResult $result, ?ValidatorInterface $validator = null): ValidationResult
    {
        if ($result->isSuccess())
        {
            return $result;
        }
 
        $customError = $this->getError();
        if (null === $customError)
        {
            return $result;
        }
 
        if (null !== $validator)
        {
            $customError->setFailedValidator($validator);
        }
 
        return (new ValidationResult())
            ->setData($result->getData())
            ->addError($customError);
    }
 
    protected function getFailedValidator(ValidationResult $result): ?ValidatorInterface
    {
        if (!$result->isSuccess())
        {
            $error = $result->getErrors()[0];
            if ($error instanceof ValidationError)
            {
                return $error->getFailedValidator();
            }
        }
 
        return null;
    }
}