<?php
/**
 * Blog for PrestaShop module by Krystian Podemski from PrestaHome.
 *
 * @author    Krystian Podemski <krystian@prestahome.com>
 * @copyright Copyright (c) 2014-2016 Krystian Podemski - www.PrestaHome.com / www.Podemski.info
 * @license   You only can use module, nothing more!
 */
if (!defined('_PS_VERSION_')) {
    exit;
}

function upgrade_module_1_3_1_8($object)
{
    $sql = 'SHOW COLUMNS FROM `'._DB_PREFIX_.'simpleblog_post_image`';
    $simpleblog_post_image = Db::getInstance()->executeS($sql);

    $needUpgrade = true;
    foreach ($simpleblog_post_image as $column) {
        if ($column['Field'] == 'image') {
            $needUpgrade = false;
        }
    }

    if ($needUpgrade === true) {
        Db::getInstance()->execute('ALTER TABLE `'._DB_PREFIX_.'simpleblog_post_image` CHANGE filename image varchar(255) NOT NULL');
    }

    return true;
}