Htmldb_item_popupkey_from_query - returning a value.

Question

Hello,
I have created a dynamic parameter page, based on some tables that I have.
I was using select_list_from_query to generate a select list from a query stored in my ref_tbl. I switched to htmldb_item_popupkey_from_query because the query was generating too many rows. The popup box displays, but I can't get it to return any values to my dynamic form element. Below is part of the code.
declare
tablename varchar2(4000);
-- DYNAMIC CURSOR DEFINITIONS
TYPE Cur_Type IS REF CURSOR; -- define weak REF CURSOR type
ref_cur Cur_Type; -- declare cursor variable.
-- DECLARE RECORD
rec ref_tbl%ROWTYPE; -- rec reoord is same type as ref_tbl row.
begin
OPEN ref_cur FOR -- open cursor variable
'select table_name, column_name, col_static_lov, col_query_lov, seq_num, label, data_type from ref_tbl where table_name = :t order by seq_num' USING :TABLE_NAME;
q := '<table class="t13BoxBody">';
htp.p(q);
-- table loop
loop
FETCH ref_cur into rec; -- fetch next row.
EXIT WHEN ref_cur%NOTFOUND; -- exit loop when last row is fetched.
if (rec.col_query_lov is not null) then
q := q||'<tr><td>'||HTMLDB_ITEM.POPUPKEY_FROM_QUERY (3,'%',rec.col_query_lov,20,4000)||'</td></tr>';
htp.p(q);
end loop;
CLOSE ref_cur; -- close cursor variable
q :='</table>';
htp.p(q);
end;
NOTE: col_query_lov = select distinct teacher_lastfirst display_value, teacher_lastfirst return_value from pd_teacher_tbl
NOTE 2 : ref_tbl contains table name,column name pairs for each column in a table.
Any assistance would be greatly appreciated. Thanks
Sharon

Answer 1

Tobias,
When using popupkey LOVs, there are two items required to store the values. One item is the disabled text field that shows the display value. And the other item is a hidden field that is used to store the actual return value. You have assigned the ID number 9 to your popupkey LOV field in you query. This means that there will actually be two arrays, g_f09 and g_f10 used for this column. So your next field needs to get a number other then the ones already taken,if you change the text field to use ID number 11, things should work properly,
Regards,
Marc