Populating apex item checkbox in report row based on database value

Question

Hi All
I am looking for help setting an apex item checkbox to 'checked' depending on a record exisiting in a database and I would appreciate a little guidance.
At the moment I have a report which looks a bit like this
SELECT licence_user_identifier,
description,
licence_name,
apex_item.checkbox(22,licence_id)
FROM TABLE(SOL_LICENCE.F_RETRIEVE_ORG_LICENCES ( 121 ));
4 columns and the last column is a checkbox called 'assign' and is used to assign the selected licence to a user(who is already displayed on the page in another table). There is save button which when clicked saves a record to the database if the checkbox is selected.
However when the page is displayed the checkbox should be prepopulated/checked if there is a record in the database saying that the licence is assigned to the current user. I have created a page process to try and collect this information and populate the checkboxes on load - before header. However I am having difficulty referencing the apex_application item the corresponds to each row because when I use the FOR i IN 1 .. apex_application.g_f22.COUNT LOOP it only selects the item if it is checked. Can anyone point me in the right direction?
here is the process I have to populate the checkboxes, it is not getting to my flow.debug as there are no selected checkboxes:-(
DECLARE
v_count     NUMBER;
CURSOR getlicences (p_co_id so05.co_id%TYPE)
     IS
SELECT     licence_id
FROM     so05_cust_org_licences
WHERE     co_id = p_co_id;
BEGIN
     IF :p9_co_id IS NOT NULL
     THEN
          FOR each_rec IN getlicences (:p9_co_id)
          LOOP
               --check if a record exists
               SELECT     COUNT ( * )
               INTO     v_count
               FROM     so05_cust_org_licences
               WHERE     co_id = :p9_co_id AND licence_id = each_rec.licence_id;
--if the record exists populate the checkbox
               IF v_count > 0
               THEN
                    FOR i IN 1 .. apex_application.g_f22.COUNT
                    LOOP
wwv_flow.debug ('bbbbbbbbbbccccccccccandwearein' || v_count);
                         IF apex_application.g_f22 (i) = each_rec.licence_id
                         THEN
                              apex_application.g_f22 (i) := 1;
                         END IF;
                    END LOOP;
               END IF;
          END LOOP;
     END IF;
END;
Thanks in advance
Lynn

Answer 1

Hi,
Sorry my mistake. You can use the above link only to solve this problem, for this you have to use a hidden column to which you will assign 'Y' or 'N' as mentioned in that post.
using that hidden column value you can fire your query accordingly.
let's say your hidden column is f01 and checkbox column is f02 and the id column is f03, you can do like this
create a process before your update process like this
BEGIN
    -- Reset the hidden ADMIN_USER flag for all visible records to N
    -- Note: g_f01 maps to the hidden ADMIN_USER column
    FOR ii IN 1 .. APEX_Application.g_f01.COUNT
    LOOP
        APEX_Application.g_f01(ii) := 'N';
    END LOOP;
    -- Set the hidden ADMIN_USER flag for those records where the
    -- checkbox has been set by the user to Y
    -- Note: g_f02 is the checkbox column ADMIN_USER_CHECKBOX
    FOR ii IN 1 .. APEX_Application.g_f02.COUNT
    LOOP
        APEX_Application.g_f01(APEX_Application.g_f02(ii)) := 'Y';
    END LOOP;
END;then write a new process positioning after above process
if apex_application.g_f01 = 'Y' then
  your update query using id column (f03)
else
  your delete query using that id column (f03)
end if;hope this helps you.
Thanks
Tauceef