Placing Subtotals within a Table - assistance needed!

Question

Hi Experts,
I have a requirement for a change in a report that is created using XML Publisher and the output is from Release 12.
There are a table of values where the output presently looks like this (not every column included, to ease clarity):
Payee     Site     Amount Discount Payment Total Payable
GROUP A     MILTON KE .00     70.50     .00     70.50
GROUP A     MILTON KE .00     483.06     .00     483.06
GROUP B     DIRECT DE .00     209.40     .00     209.40
GROUP B     DIRECT DE .00     209.40     .00     209.40
GROUP A     MILTON KE .00     141.00     .00     141.00
GROUP B     DIRECT DE .00     172.98     .00     172.98
GROUP B     DIRECT DE .00     244.65     .00     244.65
GROUP A     MILTON KE .00     512.95     .00     512.95
Totals          GBP     40,519.87     .00     .00     40,519.87     .00     40,519.87
The code for this presently is:
<?for-each:PARENT?>
-- Output each row with the fields listed in table
<?end for-each?>
-- The output the Final Totals row (this is not a calculated total, but a total field listed in the XML output)
An example of the XML is:
- <PARENT>
<PARTY_SITE_NAME>MILTON KEYNES</PARTY_SITE_NAME>
<PAYEE>GROUP A</PAYEE>
<INVOICE_NUM>A10008075</INVOICE_NUM>
<DUE_DATE>19-SEP-07</DUE_DATE>
<AMOUNT_REMAINING>739.92</AMOUNT_REMAINING>
<WITHHELD_AMOUNT>0</WITHHELD_AMOUNT>
<DISCOUNT_AMOUNT>0</DISCOUNT_AMOUNT>
<INTEREST_AMOUNT>0</INTEREST_AMOUNT>
<PAYMENT_AMOUNT>739.92</PAYMENT_AMOUNT>
<AMOUNT_REMAINING_FM>739.92</AMOUNT_REMAINING_FM>
<WITHHELD_AMOUNT_FM>0.00</WITHHELD_AMOUNT_FM>
<DISCOUNT_AMOUNT_FM>0.00</DISCOUNT_AMOUNT_FM>
<INTEREST_AMOUNT_FM>0.00</INTEREST_AMOUNT_FM>
<PAYMENT_AMOUNT_FM>739.92</PAYMENT_AMOUNT_FM>
<SELECTED_PS_TOTALS>739.92</SELECTED_PS_TOTALS>
<SELECTED_PS_TOTALS_FM>739.92</SELECTED_PS_TOTALS_FM>
</PARENT>
- <PARENT>
<PARTY_SITE_NAME>MILTON KEYNES</PARTY_SITE_NAME>
<PAYEE>GROUP A</PAYEE>
<INVOICE_NUM>H10001663</INVOICE_NUM>
<DUE_DATE>07-SEP-07</DUE_DATE>
<AMOUNT_REMAINING>66.24</AMOUNT_REMAINING>
<WITHHELD_AMOUNT>0</WITHHELD_AMOUNT>
<DISCOUNT_AMOUNT>0</DISCOUNT_AMOUNT>
<INTEREST_AMOUNT>0</INTEREST_AMOUNT>
<PAYMENT_AMOUNT>66.24</PAYMENT_AMOUNT>
<AMOUNT_REMAINING_FM>66.24</AMOUNT_REMAINING_FM>
<WITHHELD_AMOUNT_FM>0.00</WITHHELD_AMOUNT_FM>
<DISCOUNT_AMOUNT_FM>0.00</DISCOUNT_AMOUNT_FM>
<INTEREST_AMOUNT_FM>0.00</INTEREST_AMOUNT_FM>
<PAYMENT_AMOUNT_FM>66.24</PAYMENT_AMOUNT_FM>
<SELECTED_PS_TOTALS>66.24</SELECTED_PS_TOTALS>
<SELECTED_PS_TOTALS_FM>66.24</SELECTED_PS_TOTALS_FM>
</PARENT>
My requirements for this are:
1) To sort the table by Payee, grouping similar Payees together. This I have achieved by adding the below after <?for-each:PARENT?>.
<?sort:PAYEE?>
2) With the Payees grouped, to add a subtotal of each of the groups WITHIN the main table, something like this:
Payee     Site     Amount Discount     Payment      Total Payable
GROUP A     MILTON KE .00     70.50     .00     70.50
GROUP A     MILTON KE .00     483.06     .00     483.06
Subtotal= 553.46
GROUP B     DIRECT DE .00     209.40     .00     209.40
GROUP B     DIRECT DE .00     209.40     .00     209.40
Subtotal= 418.80
..etc
Totals          GBP     40,519.87     .00     .00     40,519.87     .00     40,519.87
I am having trouble with getting this subtotal of each group to be within the table. My Psuedo-code I was thinging of was:
Declare variable sub_total = 0
Declare variable temp
For-Each Row
temp = this_row_payee
if(temp = next_row_payee) then
sub_total = sub_total + Total_Payable
Output this row
else
Output the subtotal
temp = next_row_payee
sub_total = 0
end if
End For-Each Row
I have tried using the for-each-group and using the Sum with current_group() but I am new to XML Publisher and would greatly welcome any feedback.
Thanks!
Mark

Answer 1

I have solved it, many thanks for your reply which has provided me with the solution.
<?for-each-group:PARENT; PARTY_NAME1?>
<?sort: PARTY_NAME1?>
<?for-each: current-group()?>
-- Then list the placeholder fields e.g.
<?PARTY_SITE_NAME?>
<?INVOICE_NUM?>
... etc
<?end for-each?>
<?sum (current-group()/TOTAL_PAYABLES)?>
<?end for-each-group?>
This sorts the Payees into alphebetical order and then groups, then lists every row within the group, then and at the end of the group, the total pyables field is added up and provided as a subtotal.
Thanks,
Mark