Reg: Selectively Commenting Script Logic

Question

Dear Experts,
I have a situation where in the Default Logic file comprises of Allocation Logic and Currency Translation Logic, and it works fine.
But for just one of my reports I have created an Data manager package for Allocation as it uses a different Dimension (Datasource dim instead of Product dim) when compared with the others (which are allocated based on Product).
The allocation logic works fine if and only if i comment the Allocation Logic present in the Default logic file but this will prohibit the allocation in the remaining reports.
Is there a way i can restrict the Allocation present in default logic and run only the manually triggered allocation without commenting in default logic so that it works fine for other reports as well.
Please advice.
Rgds,
Rizwan

Answer 1

I'm a little confused by your use of the word "reports." In BPC, I use the word "report" to mean something very simple -- a view into the data that is stored in the database.
Any script logic that calculates values (for example, allocations or currency conversion) will post its results to the database. Once those results are in the database, any and all reports which point to those values will retrieve the same result. So it's not possible to have one report retrieve values that are impacted by a data manager package, while other reports ignore that data manager package.
(However, as soon as I say that, I'll disagree with myself and say, yes of course it's possible -- in the most extreme case, create separate applications for the different business requirements. Or more frequently, use different members in datasrc or some other dimension to isolate the different values.)
To solve your problem, you need to approach it in terms of the cube (OLAP) data structure, and then your final reports need to either include or exclude, as appropriate, the allocation results. I would recommend you not think in terms of making the code branch in different directions (based on some or other reports). Instead, the logic runs all the time, and the question should be, where do the logic results post to?
For a very simple example, the currency conversion results always post to USD, EUR, etc. members of the RptCurrency dimension. This logic will never change the original (LC) values.
For your allocation logic, the same approach can apply. Obviously you wouldn't use the RptCurrency dimension to differentiate the results, but perhaps a datasrc dimension (or something similar) can achieve the result you need.
For instance think of a datasrc dimension which looks like this, one parent and two children:
AllDatasrc
-- InputData
-- AllocResult
The allocation logic only considers data in InputData, and posts the results to AllocResult. The other reports (which should not reflect the allocation) are focused on InputData, while the allocation report looks at AllDatasrc, or possibly even all 3 members to show the "before and after"
Once you make that change, you need to decide how it impacts everything else in the application. The currency conversion logic, perhaps should now include both InputData and AllocResult. That's up to you to decide.