Item data using PL/SQL block region

Question

hello community,
I have searched the whole forum using Pl/SQL but couldn't find an answer for this.
I have a PL/SQL Anonymous block region, containing database items fetched by a process and custom items getting set by the Pl/SQL source.
based on the ID I am getting the records i.e.
Region Source (PL/SQL Anonymous block)
declare
CURSOR cpc_cur is SELECT "PRODUCT", "APPCODE", "COMCODE", "DESCRIPTION" from cp2 where "ID" = :P4_ID;
begin
for cpc_rec in cpc_cur
loop
:P4_P_NAME := cpc_rec.product;
end loop;
end;
The custom item is text field with source Item.
The item value is not filled in for the first time after login, but it shows the value in the session state as with status 'I', but from then onwards it works fine.
Why is the value not fetched the first time?
even I tried the postcalculation using nvl and it sets it to null.
Also set_session state doesn't work.
If I make the custom Item as Pl/SQL function, and write the query then it works fine, but gives problem as while inserting a new record the query has no ID to refer.
Thanks in advance.
Piyush

Answer 1

Thanks Scott!!
1) I am using PL/SQL region to get the data for few items on the form region which is based on a table, all table attributes are database items and additional Items whose data I am fetching from the PL/SQL are Custom items.
2) Yes the loop executes only once per page view, Is their a better query?
3) Well its very dumb to have a item source as item pointing to itself, but since the values are in session with status 'I' I thought this could do the trick!
4) As the item source type used is [only..], the first time user logs in it doesn't displays the value, need to refresh the page, but the second time its gets the values form the session.
5) If I make the Item source as PL/SQL function, I just fetch the records individually, same as in the query which works fine, but the items are also used for insertion (add new) and I clear the cache, so it gives error as it cannot execute the pl/sql function(no ID while addition)
I hope I have answered your questions! If you have patience you can read the detail description.
test application on oracle server
http://apex.oracle.com/pls/otn/f?p=24296:1:3544773135949858:::::
login/password test/test
Application name :Test
The page has 2 regions. when clicking on SN the values are transfered to form, except for 'Appcode'.
Detail Description:
I have a page with 2 regions.
One region is a report region showing fewer details from a view. The other region is a PL/SQL(form region), which shows all the details and is linked to the report region.
While linking I pass the ID from report and autofetch the data in form region.
But some Items are not related to that database, so I created few items on form region (Custom Items). To fill in these values I did these things.
1) Pass them through script (but passing 7 parameters through script is not good)
2) Made another autofetch process to fetch the remaining Items, but it seems that its not possible to have 2 autofetch process on one form region.
3) Changed the form type from HTML to PL/SQL, to assign the custom items values through code.
for cpc_rec in cpc_cur
loop
:P_custom_item := cpc_rec.data;
end loop;
Either make source type static or Item (the same item P_custom_item).
This pl/sql code do assign them the values, In the session state their status is 'I', but are not displayed on the page for the first login, need to refresh the page, as the source used is (only when..) it gets the value the second time.
4) Made the item source as PL/SQL function and assign them the value. It works fine, but the same item is also used displaying description while insertion(gives error while insertion), so made a conditional process, even that gives the same error.
I have a questions.
If an Item status is 'I' in the session state, why is it not displaying the value on page.
Thanking you in anticipation
Piyush
Message was edited by:
user523112