<?php
/*
* 2007-2015 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2015 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

function generic_add_missing_column($table, $column_to_add)
{
    $column_exist = Db::getInstance()->executeS('SHOW FIELDS FROM `'._DB_PREFIX_.$table.'`');
    $column_formated = array();
    $res = true;
    if ($column_exist) {
        foreach ($column_exist as $c) {
            $column_formated[] = $c['Field'] ;
        }
        
        foreach ($column_to_add as $name => $details) {
            if (!in_array($name, $column_formated)) {
                $res &= Db::getInstance()->execute('ALTER TABLE `'._DB_PREFIX_.$table.'` ADD COLUMN `'.$name.'` '.$details);
            }
        }
    }
    return $res;
}