How to catch the userid and use it in a query?

Question

Hi,
I have the table
users
===========
userid
password
user_name
nationality
order table
==============
order_no number
order_date date
notes varchar2(50)
deptname varchar2(50)
userid varchar2(20) it references users.userid
every portal user has an account on the oid and is mapped and synchronized in the users table
i have the form
order form
==========
orderp_no number
order_date date
notes varchar2(50)
status varchar2(50)
form_user_name lookup on users.userid
form_nationality lookup on users.nationality
================
I want for every authenticated user when the user access the order form from the portal page
1- the user data user_name , nationality is to be fetched (selected)
from the users table where userid = the userid of the user by which
he is authenticated against the OID
2 - the user_name is to be assigned to the form field form_user_name
and the nationality is to be assigned to form_nationality
3 - once the user sumbit the request the request_no is to be generated as
max (order_no) + 1 and is assigned to the field order_no
How can i implement 1 , 2 , 3?
Best Regards
Mohamed Hammed

Answer 1

Hi i
from the form i set the default value of the field form_user_name PORTAL.WWCTX_API.GET_USER and the default fomat type to expression return varchar
Now
=======
the authenticated user id appears in the field form_user_name and is inserted properly in the oirder table
Question
========
i want every authenticated user can query only his orders which means when he prss the query button , he will get his orders only
How can i force the where clause of the query to have
form_user_name = PORTAL.WWCTX_API.GET_USER
Regards
Mohamed Hammed