respect-validation/library/Exceptions/AttributeException.php

<?php
namespace Respect\Validation\Exceptions;

class AttributeException extends AbstractNestedException
{
    const NOT_PRESENT = 0;
    const INVALID = 1;
    public static $defaultTemplates = array(
        self::MODE_DEFAULT => array(
            self::NOT_PRESENT => 'Attribute {{name}} must be present',
            self::INVALID => 'Attribute {{name}} must be valid',
        ),
        self::MODE_NEGATIVE => array(
            self::NOT_PRESENT => 'Attribute {{name}} must not be present',
            self::INVALID => 'Attribute {{name}} must not validate',
        ),
    );

    public function chooseTemplate()
    {
        return $this->getParam('hasReference') ? static::INVALID : static::NOT_PRESENT;
    }
}