Problems with accessing collections in 3.0 after upgrade

Question

Hello ApEx Team,
I noticed that my demo on apex.oracle.com related to the XML charts doesn't work properly
any more. The chart is there but no values are showing up. The problem has something to
do with accessing collections - it seems no data is found by the procedure looping through
the generated values. Since the chart values get rendered by executing the package
procedure through the browser, and not from the user session, I was using the
following code to get access to the collections:
      HTMLDB_CUSTOM_AUTH.define_user_session (app_user_in, session_id_in);
      HTMLDB_APPLICATION.g_flow_id := app_id_in;
      HTMLDB_CUSTOM_AUTH.post_login (app_user_in,
                                     session_id_in,
                                     app_id_in || ':' || page_id_in
                                    );Now, it seems this part doesn't work and it did in all previous versions. The collection
is there. I checked that. How do I go arrond this problem?
The (not working) demo can be found here:
http://htmldb.oracle.com/pls/otn/f?p=31517:74
Denes Kubicek

Answer 1

Joel,
Thanks for responding. You confirmed what I previously stated. The following worked and
works for all versions before 3.0:
BEGIN
   HTMLDB_CUSTOM_AUTH.define_user_session (:app_user_in, :session_id_in);
   HTMLDB_APPLICATION.g_flow_id := :app_id_in;
   HTMLDB_CUSTOM_AUTH.post_login (:app_user_in,
                                  :session_id_in,
                                  :app_id_in || ':' || :page_id_in
   FOR c IN (SELECT c001, c002
               FROM htmldb_collections
              WHERE collection_name = :coll_name_in)
   LOOP
      htp.p(c.c001 || ', ' || c.c002);
   END LOOP;
END;For 3.0 it doesn't return collection values. Selecting from collection will return
ORA-01403: no data found. This means that something must have changed. Please
correct me if I'm wrong.
A question: is this the right way to access collections from a background process?
If not (it obviously isn't the right way for 3.0), then what is the right way?
I could create a package collection instead of using apex_collections. But I think it is not
neccessary and we should find a way to avoid it if possible.
Thanks again for your help.
Denes Kubicek