Call popup, make selection, re-execute query problem

Question

Hi all,
I searched and searched, but can't quite figure out how to do this. The javascript/AJAX examples just get me completely lost.
I have a search page. On the search page I want to allow the users to save and subsequently retrieve a search. I have the part to save search working fine. But, I am having a devil of a time getting the retrieve search functionality to work.
The popup works fine, and displays the saved searched for that user, and I can get the sequence number of the search returned back to the calling page. But, now that the calling page has the sequence number, I need to submit the page (or whatever is needed for a PPR region), so that it checks to see if the sequence number field is null or not. If it's not null, then query the saved search table to extract the query condition, plug that in to the where clause, and re-execute the query to repopulate the region.
I have a quasi-working example of what I'm trying to do at on the apex.oracle.com site at http://apex.oracle.com/pls/otn/f?p=11772:3 (if needed, the application is called "test problem", page 3). Due to how my search functionality is setup, using Oracle text, I can't get a 'real' search to perform, so I'm 'faking it' with just a "select *..." on the site.
Workspace: wbfergus
username: htmldb
password: htmldb
Any help or guidance is greatly appreciated. Thanks,
Bill Ferguson

Answer 1

Well, I've finally got it to return the SEQ from the popup onto the calling page and then have the calling page submit.
However, I now have some other kind of problem that's really vexing me. I've turned on debug so I can see how the page is getting rendered, at up near the top it explicity states:
0.01: ...Session State: Saved Item "P3_SEQ" New Value="121"
However, I have a region that is based on a PL/SQL function returning a query:
declare
v_stmnt varchar2(4000) := null;
v_where varchar2(4000) := null;
v_area  varchar2(4000) := null;
begin
if :P3_SEQ IS NULL THEN
--if apex_application.get_current_flow_sgid(:P3_SEQ) IS NULL THEN
   v_where := :P3_WHERE_CLAUSE;
   v_area  := :P3_AREA_SEARCH;
   htp.p('P3_SEQ is NULL');
   htp.p('');
else
   SELECT where_clause, search_area
   INTO   v_where, v_area
   FROM   playlist
   WHERE  seq = v(':P3_SEQ');
   htp.p('P3_SEQ = '||:P3_SEQ);
   htp.p('');
end if;
--v_where := 'XYZ';
v_stmnt := 'SELECT   dep_id, dev_st, oper_tp, sig, NAME, ';
v_stmnt := v_stmnt||'commod, commod_group, ';
v_stmnt := v_stmnt||'MIN (usgs_num) KEEP (DENSE_RANK FIRST ORDER  BY mt_rec ASC) usgs_num, ';
v_stmnt := v_stmnt||'MIN (model_name) KEEP (DENSE_RANK FIRST ORDER  BY mt_rec ASC) model_name, ';
v_stmnt := v_stmnt||'MIN (country) KEEP (DENSE_RANK FIRST ORDER  BY l_line ASC) country, ';
v_stmnt := v_stmnt||'MIN (state_prov) KEEP (DENSE_RANK FIRST ORDER  BY l_line ASC) state_prov, ';
v_stmnt := v_stmnt||'MIN (county) KEEP (DENSE_RANK FIRST ORDER  BY l_line ASC) county, ';
v_stmnt := v_stmnt||'MIN (lat_dec) KEEP (DENSE_RANK FIRST ORDER  BY g_line ASC) lat_dec, ';
v_stmnt := v_stmnt||'MIN (lon_dec) KEEP (DENSE_RANK FIRST ORDER  BY g_line ASC) lon_dec, ';
v_stmnt := v_stmnt||'mas_id, mrds_id ';
v_stmnt := v_stmnt||'FROM     NEW_MASTER_QUERY1 ';
v_stmnt := v_stmnt||'WHERE    dep_id IN ';
v_stmnt := v_stmnt||'    (SELECT dep_id ';
v_stmnt := v_stmnt||'     FROM search_table where '||v_where||' ';
v_stmnt := v_stmnt||v_area||') ';
v_stmnt := v_stmnt||'GROUP BY dep_id, dev_st, oper_tp, sig, NAME, ';
v_stmnt := v_stmnt||'commod, commod_group, mas_id, mrds_id';
htp.p(v_stmnt);
return v_stmnt;
END;It always acts as if :P3_SEQ is null, and is confirmed by the htp.p output. But the page explicity knows that :P3_SEQ is not null.?.?
This is just on my local copy of the app, I'll see if I can put together something on apex.oracle.com that does the same thing. My default query on my app uses Oracle Text, so simulating it requires a bit of extra work.
Thanks,
Bill Ferguson