Getting multiple values from a function - oracle11g

Question

I have my CLIENTS table with the fields: (PK:ID NUMBER), PRICE NUMBER, PAYMENT_TYPE_ID NUMBER, SESSION_AREA NUMBER
I created a dynamic action from my page, in order to take the above values from CLIENTS table according to my :P2007_CLIENTS_ID.
First i created this type:
CREATE OR REPLACE EDITIONABLE TYPE "PATIENT_DETAILS" as object
( payment_type number,
session_area number,
price number
)
/
then i created this function:
create or replace FUNCTION "F_PATIENT_DETAILS"
(patient_id in NUMBER, session_date date)
RETURN patient_details
IS
v_payment_type number;
v_session_area number;
v_price number;
BEGIN
SELECT CLIENTS.PAYMENT_TYPE_ID into v_payment_type
FROM CLIENTS
WHERE CLIENTS.ID = patient_id;
SELECT CLIENTS.SESSION_AREA into v_session_area
FROM CLIENTS
WHERE CLIENTS.ID = patient_id;
SELECT CLIENTS.PRICE into v_price
FROM CLIENTS
WHERE CLIENTS.ID = patient_id;
if v_price is null then
SELECT POLICIES.PRICE into v_price
FROM POLICIES
WHERE POLICIES.ACTIVE = 1
AND to_char(session_date, 'MM-DD-YYYY') BETWEEN POLICIES.START_DATE AND POLICIES.END_DATE;
end if;
return patient_details(v_payment_type, v_session_area, v_price);
END;
How do i get the values from this function in my page, with Dynamic Action?
I tried this: Identification-> Set Value, Set Type -> PL/SQL Function Body:
declare
My_Result PATIENT_DETAILS;
begin
My_Result := F_PATIENT_DETAILS(:P2007_CLIENTS_ID, :P2007_SESSION_DATE);
end;
Items to Submit-> P2007_CLIENTS_ID, :P2007_SESSION_DATE
Affected Elements -> P2007_PAYMENT_TYPE_ID, :P2007_SESSION_AREA, :P2007_PRICE
but nothing happens..!

Answer 1

Those three fields are never assigned the new values after your function is returned, eg:
:P2007_PAYMENT_TYPE_ID := my_result.payment_type;
Also, there is no reason for 3 separate queries on CLIENTS. You could do this in one motion.
SELECT c.PAYMENT_TYPE_ID, c.SESSION_AREA, c.PRICE
into v_payment_type, v_session_area, v_price
FROM CLIENTS c
WHERE c.ID = patient_id;
Taking that a step further, you could coalesce c.price with a subquery on policies.
Which has a questionable filter on a date being represented as a character. I doubt this would return accurate results.