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akrobet
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Quote akrobet Replybullet Topic: Combine records according to certain field
    Posted: 03 Dec 2012 at 1:32am
Hello,

I am working on an invoice related report, where I have the following table (simplified for example)

PriceId     Amount     ChargeCode LumpChargeCode
1     100     AAA        null
2     50     SF        AAA
3     20     BAF        AAA
4     200     BBB        null

The requirement is to add the amounts of those records that have LumpChargeCode value to those records that have the corresponding ChargeCode.
Example above: add records with PriceId 2 and 3 to record A's amount.

So in the report I'd need something like this:
1       170     AAA     null
4     200     BBB     null
Total:     370               

So far I've tried to use Arrays which I populate with values of ChargeCode, LumpChargeCode and Amounts.
Afterwards, I have 2 nested for loops to iterate through the LumpChargeCodes and ChargeCodes and add the values where the two codes match.

This is for populating the arrays:
WhileReadingRecords;
NumberVar LumpedAmountSum;
Local StringVar Key := "" & {Price.LumpChargeCode};
Local StringVar ChC := "" & {Price.ChargeCode};
Local NumberVar Amt := {Price.InvAmount};
Local NumberVar LumpedAmt := {Price.InvAmount};
StringVar array Keys;
StringVar array ChCs;
NumberVar Array Amts;
NumberVar Array LumpedAmts;


    redim preserve Keys [count(Keys)+1];
    Keys[count(Keys)]:= Key;

    redim preserve Amts[count(Keys)+1];
    Amts[count(Keys)]:= Amt;
    
    redim preserve LumpedAmts[count(LumpedAmts)+1];
    LumpedAmts[count(LumpedAmts)]:= LumpedAmt;

    redim preserve ChCs[count(ChCs)+1];
    ChCs[count(ChCs)]:= ChC;

And this for adding the amounts:

evaluateafter({@ArrayDef});
//WhilePrintingRecords;
StringVar array Keys;
StringVar array ChCs;
NumberVar Array Amts;
NumberVar Array LumpedAmts;
StringVar Array TempArray;
NumberVar Array PriceItemCounters;

numbervar i := 1;
numbervar j;


for i:= i to count(Keys) do // 1x
(
    for j:= i to count(ChCs) do
    (
        if Keys<>'' and Keys = ChCs[j] and not ({Price.PriceItemCounter} in PriceItemCounters)
        then
        (            
            LumpedAmts[j] := LumpedAmts[j] + Amts;
            redim preserve TempArray[count(TempArray)+1];            
            redim preserve PriceItemCounters[count(PriceItemCounters)+1];
            PriceItemCounters[count(PriceItemCounters)]:= {Price.PriceItemCounter};
        )
    );
);

This solution does not work correctly though, as it seems that some records are added multiple times (I guess something to do with evaluation times, whilereadingrecords and whileprintingrecords)...

The fields are displayed in the detail section of the report.

Any advice would be appreciated.

Edited by akrobet - 03 Dec 2012 at 1:36am
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comatt1
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Joined: 19 May 2011
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Posts: 337
Quote comatt1 Replybullet Posted: 03 Dec 2012 at 3:50am
Wow, you have invested tons into this already. I would hate and try and dumb it down.


i would create 1 formula - group by this

if isnull(LumpChargeCode) then
ChargeCode
else
LumpChargeCode

----

i would create 1 running total

----- summarize amount
- type of summary - sum

---evaluate

for each record

---- Reset

on change of group

now in group footer

[GroupName] [Running Total]

----------

For Report Footer create another running total, or just do Insert a summary (if RT then reset = never)

Edited by comatt1 - 03 Dec 2012 at 3:55am
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