Pass param from report to report

Question

Hello guys,
I have got a report1 linking to a custom target - report2. In report1 I have set Item 1 as IR_type_of_part_needs_id #PART_ID#. Report2 is based on the following query:
WITH
subparts (partId, subPartId, amount, subLevel) AS
SELECT TYPE_OF_PART_NEEDS_ID, TYPE_OF_PART_IS_NEEDED_ID, AMOUNT, 0 SUBLEVEL
FROM PART_NEEDED
WHERE type_of_part_needs_id = :IR_type_of_part_needs_id -- here I need to pass the parameter from report1
UNION ALL
SELECT SUB.TYPE_OF_PART_NEEDS_ID, SUB.TYPE_OF_PART_IS_NEEDED_ID, SUB.AMOUNT, SUBLEVEL+1
FROM SUBPARTS S, PART_NEEDED SUB
WHERE sub.TYPE_OF_PART_NEEDS_ID = S.SUBPARTID
SELECT partId, subPartId, amount, subLevel
FROM subparts
ORDER BY subLevel, partId;
Could you please give me an advice how I can achieve this
Many thanks in advance!
Application Express 4.0.1.00.03
Edited by: Todor Kolev on Mar 2, 2012 2:41 PM
Edited by: Todor Kolev on Mar 2, 2012 4:39 PM

Answer 1

You can solve this by creating an item and then initialize that item when the link from report1 is clicked.
Example:
1) Create new item - my_item in report1 page
2) In report1 set Item 1 as my_item #PART_ID#
3) Then you can call in report2 like this:
WITH
subparts (partId, subPartId, amount, subLevel) AS
SELECT TYPE_OF_PART_NEEDS_ID, TYPE_OF_PART_IS_NEEDED_ID, AMOUNT, 0 SUBLEVEL
FROM PART_NEEDED
WHERE type_of_part_needs_id = *:my_item*
UNION ALL
SELECT SUB.TYPE_OF_PART_NEEDS_ID, SUB.TYPE_OF_PART_IS_NEEDED_ID, SUB.AMOUNT, SUBLEVEL+1
FROM SUBPARTS S, PART_NEEDED SUB
WHERE sub.TYPE_OF_PART_NEEDS_ID = S.SUBPARTID
SELECT partId, subPartId, amount, subLevel
FROM subparts
ORDER BY subLevel, partId;