example for zend_db current usage

        if (! empty($make_flag) && $make_flag){
            // set go to active
            $go = new Application_Model_GroupOrders($go_id);
            $go->active = 1;
            $go->save();

            //update go status
            $go_status = new Application_Model_Statuses();
            $go_status->item_id = $go_id;
            $go_status->item_type = 'group_order';
            $go_status->date = time();
            $go_status->status = 'В работе';
            $go_status->comment = 'Выставлены счета клиентам';
            $go_status->admin_user = $this->_identity->email;
            $go_status->save();

            $addition = 1;
            // update orders statuses
            foreach($go_info['orders_list'] as $order_info){

                // add new bill for each order
                $new_bill = new Application_Model_Bills();
                $new_bill->user_id = $order_info['user_id'];
                $new_bill->order_id = $order_info['order_id'];
                $new_bill->date = time() + $addition++;
                $new_bill->type = 'payment';
                $new_bill->amount = $order_info['bill_price'];
                $new_bill->cur_id = $order_info['cur_id'];
                $new_bill->comment = '';
                if ($new_bill->save()){
                    $bill_id = $new_bill->getLastInsertId();
                    if(! empty($bill_id)){
                        // add products info to bill
                        foreach($order_info['products'] as $product_info){
                            $new_product = new Application_Model_BillsProducts();
                            $new_product->bill_id = $bill_id;
                            $new_product->p_id = $product_info['p_id'];
                            $new_product->p_info = $product_info['name'] . '(' . $product_info['color'] . '/' . $product_info['size'].')';
                            $new_product->p_amount = $product_info['amount'];
                            $new_product->save();
                        }
                    } else {
                        throw new Zend_Exception('bill_id is empty');
                    }
                    // update order status
                    $order_status = new Application_Model_Statuses();
                    $order_status->item_id = $order_info['order_id'];
                    $order_status->item_type = 'order';
                    $order_status->date = time() + $addition++;
                    $order_status->status = 'В обработке';
                    $order_status->comment = 'Выставлен счет на оплату #' . $bill_id;
                    $order_status->admin_user = $this->_identity->email;
                    $order_status->save();

                    // notifications to users

                }
            }