<?php

/*
 * This file is part of Phraseanet
 *
 * (c) 2005-2012 Alchemy
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

use Alchemy\Phrasea\Application;

class patch_381alpha1b implements patchInterface
{
    /** @var string */
    private $release = '3.8.1-alpha.1';

    /** @var array */
    private $concern = array(base::DATA_BOX);

    /**
     * {@inheritdoc}
     */
    public function get_release()
    {
        return $this->release;
    }

    /**
     * {@inheritdoc}
     */
    public function require_all_upgrades()
    {
        return false;
    }

    /**
     * {@inheritdoc}
     */
    public function concern()
    {
        return $this->concern;
    }

    /**
     * {@inheritdoc}
     */
    public function apply(base $databox, Application $app)
    {
        $sql = "SHOW INDEX FROM metadatas_structure WHERE KEY_NAME = 'sorter'";
        $stmt = $databox->get_connection()->prepare($sql);
        $stmt->execute();
        $rows = $stmt->fetchAll(\PDO::FETCH_ASSOC);
        $stmt->closeCursor();

        if (count($rows) === 0) {
            return true;
        }

        $sql = "DROP INDEX sorter ON  metadatas_structure";
        $stmt = $databox->get_connection()->prepare($sql);
        $stmt->execute();
        $stmt->closeCursor();

        return true;
    }
}