问如何使用CakePHP在MySQL中查找两个和数行的数据？

EN

if (isset($this->request->data['CouponHistory']['order_amount']) && $this->request->data['CouponHistory']['order_amount'] != '') {

            $this->Order = ClassRegistry::init('Order');
            $this->Order->virtualFields = array('total_amount' => 'SUM(Order.discount_amount+Order.total)');
            $order_id = $this->Order->find('list',array(
                   'contain' => array(),
                   'fields' => array('Order.id'),
                   'conditions' => array("Order.total_amount LIKE" => '%'.$this->request->data['CouponHistory']['order_amount'].'%'),
                   //'group' => 'Order.id'
                ));
            echo "<pre>"; print_r($order_id); die;    
            $condition[] = array("CouponHistory.order_id" => $order_id);
        }