Migrating passwords to Symfony's Password encoder

gistfile1.txt

<?php

use Symfony\Component\Security\Core\Encoder\MessageDigestPasswordEncoder as SyMessageDigestPasswordEncoder;

/**
 * Used to allow for use of existing passwords that were just sha1 in the db,
 */
class Sha1MessageDigestPasswordEncoder extends SyMessageDigestPasswordEncoder
{
    public function encodePassword($raw, $salt)
    {
        return parent::encodePassword(sha1($raw), $salt);
    }
}