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* 2007-2012 PrestaShop
* 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:
* 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 so we can send you a copy immediately.
* 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 for more information.
* @author PrestaShop SA <>
* @copyright 2007-2012 PrestaShop SA
* @license 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;
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