RTF Template: sums with nested groups

Question

Hi all,
i've got quite a pickle of a problem it seems ...
my data structure looks something like this:
<COMPANY>
--<STORE>
----<DEPARTMENT>
------<ITEM></ITEM>
----</DEPARTMENT>
--</STORE>
</COMPANY>
multiple companies can have multiple stores, which in turn have multiple departments, which also in turn can have multiple items.
my select statement looks something like this:
select company_id,
store,
department,
item,
sum(qty) as my_sum
from
table_1, table_2, table_n
where ...
group by ...
order by company_id;
my xml data template grouping looks something like this:
<group name="G_company" ...
--<element name="E_company" ...
--<group name="G_store" ...
----<element name="E_store" ...
----<group name="G_department" ...
------<element name="E_department" ...
------<group name="G_item" ...
--------<element name="E_item" ...
--------<element name="E_item_total" value="my_sum" ...
------</group>
------<element name="E_department_total" value="G_item.E_item_total" function="SUM()" />
----</group>
----<element name="E_store_total" value="G_department.E_department_total" function="SUM()" />
--</group>
</group>
my report currently looks something like:
------------------<b>Store</b>--------<b>Dept</b>---------<b>Dept</b>---------<b>Item</b>-----------<b>Item</b>---------------<b>Store</b>-----------<b>Dept</b>----------<b>Item</b>-----------<b>Item</b>
<b>Company</b>---Townsville---TDept_1------TDept_2-----TDItm1----------TDItm2-------------Newcastle------NDept1----------NDItm1--------------NDItm2
---CompanyA------2----------------4------------3---------------2---------------1------------------1-------------------3----------------2-------------------4
---CompanyB------1----------------2------------4---------------5---------------2------------------1-------------------6----------------3-------------------1
if i just focus on the Store --> Department --> Item, i achieved this in my RTF template by doing something like the following:
<table>
--<tr>
----<td><?for-each-group@column:G_store;E_store?>Store</td><td><?for-each-group@column:G_department;E_department?>Department</td><td><?for-each-group@column:G_item;E_item?>Item<?end for-each-group?> <?end for-each-group?> <?end for-each-group?> </td>
--</tr>
--<tr>
----<td><?for-each-group@column:G_store;E_store?><?E_store_total?></td><td><?for-each-group@column:G_department;E_department?><?E_department_total?></td><td><?for-each-group@column:G_item;E_item?><?E_item_total?><?end for-each-group?> <?end for-each-group?> <?end for-each-group?> </td>
--</tr>
</table>
as you can see, the store --> department --> item go across the report horizontally.
my problem is i want to have grand totals for each column, like:
------------------<b>Store</b>--------<b>Dept</b>---------<b>Dept</b>---------<b>Item</b>-----------<b>Item</b>---------------<b>Store</b>-----------<b>Dept</b>----------<b>Item</b>-----------<b>Item</b>
<b>Company</b>---Townsville---TDept_1------TDept_2-----TDItm1----------TDItm2-------------Newcastle------NDept1----------NDItm1--------------NDItm2
---CompanyA------2----------------4------------3---------------2---------------1------------------1-------------------3----------------2-------------------4
---CompanyB------1----------------2------------4---------------5---------------2------------------1-------------------6----------------3-------------------1
---<b>Total</b>------------3----------------6------------6---------------7---------------3------------------2-------------------9----------------5-------------------5
so i did a SUM on each of the E_store/department/item_totals like:
<?sum(current-group()/E_store_total)?>
now that works for E_store_total ... but not for E_department_total and E_item_total!
it seems BI Publisher doesn't like sums used with inner loops.
because if i extract just the column for E_department, the grand total value at the bottom is correct!
but once i put back the outer store loop, it breaks.
what i am currently getting with this is:
------------------<b>Store</b>--------<b>Dept</b>---------<b>Dept</b>---------<b>Item</b>-----------<b>Item</b>---------------<b>Store</b>-----------<b>Dept</b>----------<b>Item</b>-----------<b>Item</b>
<b>Company</b>---Townsville---TDept_1------TDept_2-----TDItm1----------TDItm2-------------Newcastle------NDept1----------NDItm1--------------NDItm2
---CompanyA------2----------------4------------3---------------2---------------1------------------1-------------------3----------------2-------------------4
---CompanyB------1----------------2------------4---------------5---------------2------------------1-------------------6----------------3-------------------1
---<b>Total</b>------------3----------------4------------3---------------2---------------1------------------1-------------------3----------------2-------------------4
it is doing the grand total for Store correctly, but it just gives me the first row for the other grand totals.
i have tried:
1. using the CUBE function in my SQL query, which gives me the results i want with all the totals i want, except i cannot seem to translate it into XML.
2. trying to use the pivot table option but i can't seem to ever get it to work the way i want.
3. using a separate sql query to retrieve the grandtotals but that doesn't work either because of the multiple looping required.
i'm at a complete dead end, any help would be really appreciated!
ps. i'm a very fresh newbie

Answer 1

Hi Vetsrini,
thank you very much!
when you said to use current-group i was confused because i thought i was using it, but when i opened up the RTF template i realized you meant the actual looping.
so instead of doing:
<?for-each-group@column:G_DEPARTMENT;E_DEPARTMENT?>
<?sum(current-group()/E_STORE_TOTAL)?>
i should have been doing:
<?for-each-group@column:current-group()//G_DEPARTMENT;E_DEPARTMENT?>
<?sum(current-group()/E_ITEM_TOTAL)?>
thanku!
S.