public static function deleteItems($product_id)
{
$db = JFactory::getDBO();
$query = "UPDATE " . $db->quoteName('#__jeproshop_product') . " SET " . $db->quoteName('cache_is_pack');
$query .= " = 0 WHERE product_id = " . (int) $product_id;
$db->setQuery($query);
$result = $db->query();
$query = "DELETE FROM " . $db->quoteName('#__jeproshop_product_pack') . " WHERE " . $db->quoteName('product_pack_id');
$query .= " = " . (int) $product_id;
$db->setQuery($query);
$result &= $db->query();
return $result && JeproshopSettingModelSetting::updateValue('pack_feature_active', JeproshopProductPack::isCurrentlyUsed());
}
