Collections & offset

Question

Hi,
I'm using a collection to populate a report.
I have a process to update the collection on every submit (On Submit and Before Computation).
There is no problem if the report stand in a single page. But if I have a report, let's say 20 rows standing on 2 pages, I have problems updating the collection.
I'm running a query to retrieve the collection, and then update it with values from the pages textbox (wwv_flow.g_f01, 02 ...). See code below.
I need to find a way to update only rows that are shown in the report (offset or something ..).
Any ideas ?
declare
c pls_integer := 0;
begin
for c1 in (
select seq_id from apex_collections
where collection_name = 'MATRIX'
order by seq_id) loop
c := c+1;
apex_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>4,p_attr_value=>wwv_flow.g_f01(c));
apex_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>5,p_attr_value=>wwv_flow.g_f02(c));
apex_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>6,p_attr_value=>wwv_flow.g_f03(c));
apex_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>7,p_attr_value=>wwv_flow.g_f04(c));
end loop;
end;
thanks,
Mike

Answer 1

I found a way to do it ....
DECLARE
c pls_integer := 1;
l_total_item NUMBER := wwv_flow.g_f07.count;
BEGIN
FOR c1 in (
select seq_id, c007 as id from htmldb_collections
where collection_name = 'MATRIX'
order by seq_id) loop
IF c <= l_total_item THEN
IF c1.id = wwv_flow.g_f07(c) or c1.id is null THEN
htmldb_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>1,p_attr_value=>wwv_flow.g_f01(c));
htmldb_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>2,p_attr_value=>wwv_flow.g_f02(c));
htmldb_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>3,p_attr_value=>wwv_flow.g_f03(c));
htmldb_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>4,p_attr_value=>wwv_flow.g_f04(c));
htmldb_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>5,p_attr_value=>wwv_flow.g_f05(c));
htmldb_collection.update_member_attribute (p_collection_name=> 'matrix',
p_seq=> c1.seq_id,p_attr_number =>6,p_attr_value=>wwv_flow.g_f06(c));
c := c+1;
END IF;
END IF;
END LOOP;
END;