app/Validator/PredefinedTaskDescriptionValidator.php

<?php

namespace Kanboard\Validator;

use SimpleValidator\Validator;
use SimpleValidator\Validators;

class PredefinedTaskDescriptionValidator extends BaseValidator
{
    public function validate(array $values)
    {
        $v = new Validator($values, array(
            new Validators\Required('title', t('This value is required')),
            new Validators\Required('description', t('This value is required')),
        ));

        return array(
            $v->execute(),
            $v->getErrors()
        );
    }
}