topic Re: Help to update fields in local structure in Application Development and Automation Discussions

Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 13:44:43 GMT

i need to update stru new with new and old fieds .

the stru_new is coming with new fields before the select and can have just 2 or 3 fields to update what i want that stru new be like stru old but with the new fields in it .

i.e. if stru new is like

CARRID
CONNID	        0000
FLDATE	        00000000
PRICE	        1.00
CURRENCY
PLANETYPE	newvalue
SEATSMAX	0
SEATSOCC	0
PAYMENTSUM	0.00
SEATSMAX_B	0
SEATSOCC_B	0
SEATSMAX_F	0
SEATSOCC_F	0

and sutu old is like  



CARRID	        AC
CONNID	        0820
FLDATE	        20021220
PRICE	        1222.00
CURRENCY	CAD
PLANETYPE	A330-300
SEATSMAX	320
SEATSOCC	12
PAYMENTSUM	0.00
SEATSMAX_B	20
SEATSOCC_B	1
SEATSMAX_F	0
SEATSOCC_F	0

"i want in the end the stru new be like 



CARRID	         AC
CONNID	        0820
FLDATE	        20021220
PRICE	        1.00"update
CURRENCY	CAD
PLANETYPE	newvalue"update
SEATSMAX	320
SEATSOCC	12
PAYMENTSUM	0.00
SEATSMAX_B	20
SEATSOCC_B	1
SEATSMAX_F	0
SEATSOCC_F	0

the placing on the code is just an example ,

it can be any fields taht change sometims it can be planetype and other time it can be 3 fields

like price seatmax etc

this is sample of the code :

TABLES: sflight.

FIELD-SYMBOLS: <fs_old>, <fs_new>.

DATA: stru_old TYPE sflight.

DATA: stru_new TYPE sflight.

START-OF-SELECTION.

stru_new-planetype = 'newvaulue'.

stru_new-price = 1.

***

SELECT SINGLE * FROM sflight INTO stru_old.

Regards

Nina

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 13:51:35 GMT

There are several approaches.

DATA: wa_mara_old     TYPE mara,
      wa_mara_new     TYPE mara.
 
 
FIELD-SYMBOLS: <fs_old> TYPE any,
               <fs_new> TYPE any.
 
 
clear: wa_mara_old, wa_mara_new.
wa_mara_new-ersda = sy-datum.

SELECT * INTO wa_mara_old
  FROM mara
    UP TO 1 ROWS.
ENDSELECT.

  
DO.
 
  ASSIGN COMPONENT sy-index OF STRUCTURE wa_mara_old TO <fs_old>.
  IF sy-subrc NE 0.
    EXIT.
  ENDIF.
 
  ASSIGN COMPONENT sy-index OF STRUCTURE wa_mara_new TO <fs_new>.
if not <fs_new> is initial.
  IF <fs_old> NE <fs_new>.
    <fs_old> = <fs_new>.
  ENDIF.
endif.
 
ENDDO.

wa_mara_new = wa_mara_old.

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 13:55:09 GMT

Alternatively:

DO.
 
  ASSIGN COMPONENT sy-index OF STRUCTURE wa_mara_old TO <fs_old>.
  IF sy-subrc NE 0.
    EXIT.
  ENDIF.
 
  ASSIGN COMPONENT sy-index OF STRUCTURE wa_mara_new TO <fs_new>.
  if <fs_new> is initial.
    <fs_new> = <fs_old>.
  endif.
 
ENDDO.

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 14:06:03 GMT

Hi Nina,

you can use inital like this:

DO 1000 TIMES.

ASSIGN COMPONENT sy-index OF STRUCTURE stru_old TO <fs_old>.

ASSIGN COMPONENT sy-index OF STRUCTURE stru_new TO <fs_new>.

IF sy-subrc NE 0.

EXIT.

ENDIF.

IF <fs_new> is initial.

<fs_new> = <fs_old>.

ENDIF.

ENDDO.

Hope this will solve your problem.

Regards, Dieter

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 14:13:15 GMT

I followed your previous query and I have one question. Let us say I declare a UPD_STRUC and move OLD_STRUC to it and then move NEW_STRUC to it, will it(UPD_STRUC) look like the way you want it to look like? Why are trying to figure out individual field changes, when all you want is the old structure take the new values for whatever fields that changed? If I have fields 1, 2, 3, 4 and 5 on this structure and only 2 and 5 changed, how does it matter if I move just those two fields to the UPD_STRUC or all 5 fields to UPD_STRUC. End result will be the way wanted isn't it?

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 14:14:09 GMT

Hi Maen

what is the use for

if <fs_new> is initial. ??

Regards

nina

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 14:22:16 GMT

Hi nina,

first press F1 on initial.

Regards, Dieter.

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 14:24:08 GMT

I know what is doing in general but why i need it in the code ?

regards

Nina

Re: Help to update fields in local structure

Former Member — Mon, 21 Sep 2009 14:35:42 GMT

Hi Nina,

i think the problem is which fields of stru_new shell be update by stru_old and which fields of stru_new

shell not be ubdated by stru_old because they have some values.

To identify this you can use initial, or is there another way to check if some fields of stru_new

shell NOT be updated?

Regards, Dieter

Re: Help to update fields in local structure

aabhas_wilmar — Mon, 21 Sep 2009 14:37:46 GMT

If ASSIGN statement doesn't assign any value to <fs_new> then you want to retrieve the old value for that field.

IF <FS_NEW> IS INITIAL checks the same.

regards,

Aabhas