public static function deleteByProductId($id_product) { if (Db::getInstance()->execute('DELETE FROM `' . _DB_PREFIX_ . 'specific_price` WHERE `id_product` = ' . (int) $id_product)) { // Refresh cache of feature detachable Configuration::updateGlobalValue('PS_SPECIFIC_PRICE_FEATURE_ACTIVE', SpecificPrice::isCurrentlyUsed('specific_price')); return true; } return false; }