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Currency Conversion: simpliest form



 
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PostPosted: Sat Sep 15, 2007 9:10 pm    Post subject: Currency Conversion: simpliest form Reply with quote

Code:
REPORT Z_convert_currency_amount.
  data w_amt  like ekpo-netwr.
  parameters:
    p_curr1 like tcurc-waers default 'JPY',
    p_amt1  like ekpo-netwr  default '7895',
    p_curr2 like tcurc-waers default 'SGD',
    pdate   like sy-datum    default '20030311'.

end-of-selection.
  write:
    / 'Entered:',
    / ' from currency:', p_amt1 currency p_curr1, p_curr1, '<-', p_amt1,
    / ' to currency  :', p_curr2,
    / ' on           :', pdate.
  skip.
  perform adjust_currency_decimals using    p_curr1
                                   changing p_amt1.
  write:
    / 'after adjusting enterd value using currency decimals:',
    / ' from currency:', p_amt1 currency p_curr1, p_curr1.
  skip.
  perform convert_currency_amount  using    p_curr1
                                            p_amt1
                                            p_curr2
                                            pdate
                                   changing w_amt.
  write: / 'Conversion result:', p_amt1 currency p_curr1, p_curr1, '->',
           w_amt currency p_curr2, p_curr2.
  skip.
  write / 'End Of Report'.

*&---------------------------------------------------------------------*
*&      Form  adjust_currency_decimals
*&---------------------------------------------------------------------*
*      -->P_CURR  Currency Code
*      <--P_AMT   Amount
*----------------------------------------------------------------------*
FORM adjust_currency_decimals USING    value(P_CURR) like tcurc-waers
                              CHANGING P_AMT         like ekpo-netwr.
  data w_dec like tcurx-currdec.
  select single currdec from tcurx into w_dec where currkey = p_curr.
  if sy-subrc <> 0.
    w_dec = 2.
  endif.
  p_amt = p_amt * 10 ** ( w_dec - 2 ).
ENDFORM.                    " adjust_currency_decimals

*&---------------------------------------------------------------------*
*&      Form  convert_currency_amount
*&---------------------------------------------------------------------*
*      -->P_CURR1  Currency From
*      -->P_AMT    Amount to Be Converted
*      -->P_CURR2  Currency To
*      -->P_DATE   Date for Conversion Rate
*      <--P_AMT2   Converted Amount
*----------------------------------------------------------------------*
FORM convert_currency_amount USING    value(P_CURR1) like tcurc-waers
                                      value(P_AMT1)  like ekpo-netwr
                                      value(P_CURR2) like tcurc-waers
                                      value(P_DATE)  like sy-datum
                             CHANGING P_AMT2         like ekpo-netwr.
  data: w_ukurs like tcurr-ukurs,
        w_ffact like tcurr-ffact,
        w_tfact like tcurr-tfact,
        w_d     like tcurr-gdatu,
        w_date  like tcurr-gdatu,
        w_dec1  like tcurx-currdec,
        w_dec2  like tcurx-currdec.
* Get Decimals for both Currencies
  select single currdec from tcurx into w_dec1 where currkey = p_curr1.
  if sy-subrc <> 0.
    w_dec1 = 2.
  endif.
  select single currdec from tcurx into w_dec2 where currkey = p_curr2.
  if sy-subrc <> 0.
    w_dec2 = 2.
  endif.
* Select Rate for Currency conversion
* the most recent date has the numerically smallest value
  convert date p_date into inverted-date w_date.
  select ukurs gdatu ffact tfact from tcurr up to 1 rows
          into (w_ukurs, w_d, w_ffact, w_tfact)
          where kurst = 'M'
            and fcurr = p_curr1
            and tcurr = p_curr2
            and gdatu >= w_date
          order by gdatu ascending.
  endselect.
  if sy-subrc <> 0.
    p_amt2 = 0.
  else.
    if w_ffact is initial.
      w_ffact = 1.
    endif.
    if w_tfact is initial.
      w_tfact = 1.
    endif.
    p_amt2 = p_amt1 * w_ukurs
             * 10 ** ( w_dec2 - w_dec1 ) * w_tfact / w_ffact.
  endif.
ENDFORM.                    " convert_currency_amount
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