<?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.
 */

/**
 *
 * @license     http://opensource.org/licenses/gpl-3.0 GPLv3
 * @link        www.phraseanet.com
 */
class patch_3602 implements patchInterface
{
    /**
     *
     * @var string
     */
    private $release = '3.6.0a1';

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

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

    public function require_all_upgrades()
    {
        return false;
    }

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

    public function apply(base &$databox)
    {
        try {
            $sql = 'ALTER TABLE `metadatas` DROP INDEX `unique`';

            $stmt = $databox->get_connection()->prepare($sql);
            $stmt->execute();
            $stmt->closeCursor();
        } catch (\PDOException $e) {

        }

        return true;
    }
}