symfony/src/Symfony/Components/Validator/ConstraintViolationList.php

<?php

namespace Symfony\Components\Validator;

class ConstraintViolationList implements \IteratorAggregate, \Countable
{
    protected $violations = array();

    public function __toString()
    {
        $string = '';

        foreach ($this->violations as $violation) {
            $param = $violation->getMessageParameters();
            $message = str_replace(array_keys($param), $param, $violation->getMessageTemplate());
            $string .= <<<EOF
{$violation->getRoot()}.{$violation->getPropertyPath()}:
    $message

EOF;
        }

        return $string;
    }

    public function add(ConstraintViolation $violation)
    {
        $this->violations[] = $violation;
    }

    public function addAll(ConstraintViolationList $violations)
    {
        foreach ($violations->violations as $violation) {
            $this->violations[] = $violation;
        }
    }

    public function getIterator()
    {
        return new \ArrayIterator($this->violations);
    }

    public function count()
    {
        return count($this->violations);
    }
}