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GenericTemplate to Access LDB



 
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PostPosted: Wed Apr 16, 2008 5:43 pm    Post subject: GenericTemplate to Access LDB Reply with quote

GenericTemplate to Access LDB

Source https: //wiki.sdn.sap.com/wiki/display/Snippets/GenericTemplate+to+Access+LDB

Code:
*&---------------------------------------------------------------------*
*& Report ZFTI_TEMPL_TRL_VIA_FUBA
*&---------------------------------------------------------------------*
*& REPORTING-TEMPLATE for access to the logical databases with
*customer specific coding
*& If the logical databases provide the information you need, but
*& you are limited due to the limited report/list generation potentials
*& of the SAP Query, this reporting template may help you creating
*& your own specific reports faster and more easily.
*&---------------------------------------------------------------------*

REPORT zfti_templ_trl_via_fuba.
* The following report acts as a TEMPLATE with executable example coding
* To use this template you have to COPY it into your local namespace.
* Please copy the complete report including its INCLUDEs
* What does COPY mean? You have to know (or you will see it if you
* debug the program) that the template works as follows:
* 1. First of all you have to know, which data of which LDB you need.
* 2. A usual report selection screen is defined. This may contain
* selections which are supported by the choosen LDB, others may be
* specific.
* 3. The selections which are supported by the choosen LDB are
* transformed in a way, the communication module LDB_PROCESS
* can handle it easily.
* In order to standardize selections, communication with the LDB and ALV
* output processing, 3 DDIC structures are defined:
* 1. required fields: ZFTI_TEMPL_REQU_LDB_FIELDS
* 2. output fields: ZFTI_TEMPL_OUTPUT_FIELDS
* 3. selection screen: ZFTI_TEMPL_SELSCREEN_ITEMS
* Read the below instructions and do the changes accordingly
************************************************************************
***
* First of all declare following DDIC structures:
* 1. One containing the required fields from the selected LDB with
* the same field name as in the requested LDB structure.
* 2. One containing the output fields for the ALV
* 3. One containing the fields and parameters for the selection screen
* Since this report is an executable example, this example runs on
* existing DDIC structures created for this example
* !!! Attention !!!
* For some fields additional parameters are required
* e.g. for fields in display currency the fields
* - display currency
* - currency translation type
* The symbol ### indicates that the required values have to be entered.
* Replace ### by suitable values.
* For Ex:
* ### Type in the LDB node name for call of LDB:
* g_con_ldbnode TYPE ldbnode
* VALUE 'POSITIONS',
* In above statement replace the LDB node with the required value
* The symbol ??? indicates that addn logic can be added at these places.
************************************************************************
********
* use of FTI_REP_TEMP_MAP Table
************************************************************************
********
* DB table 'FTI_REP_TEMP_MAP' consists of the mapping between selection
* parameters of local report to the the corresponding
* selection PARAMETER of the LDB.
* An entry into this table must be made for every
* sel param of local
* report to the sel param of LDB , if they are different. OR this should
* be done manually in the program.
* For Ex :
* valarea FOR fti_templ_selscreen_items-valuation_area
* Since valuation area is defined as 's_vlarea' in the LDB
* of'POSITIONS'
* mapping must be done between these two entries .
* Hence make an entry into the
* table of 'FTI_REP_TEMP_MAP'
*
************************************************************************
*********
** Tables declaration needed for select-options:
TABLES: fti_templ_selscreen_items.
************************************************************************
* type declarations (needed always):
************************************************************************
TYPE-POOLS:
rsfs,
rsds,
slis,
ftico.
************************************************************************
*
* Type in the required values
************************************************************************
*
CONSTANTS:
*### Type in the LDB name for call of LDB:
g_con_ldbname TYPE ldbnam VALUE ftico_ldbnam_positions,
*### Type in the LDB node name for call of LDB:
g_con_ldbnode TYPE ldbnode VALUE 'POSITIONS',
*### Type in the name of the mapping table
gt_con_dbmap_name TYPE dbnam VALUE 'FTI_REP_TEMP_MAP',
*### Type in name of output structure (for ALV),
g_con_name_alv_struc TYPE tabname VALUE 'FTI_TEMPL_OUTPUT_FIELDS',
*### Type in name of the structure containing the required
* fields from ldb
gt_con_name_ldb_struc TYPE ddobjname VALUE 'FTI_TEMPL_REQU_LDB_FIELDS' ,
*current program name
g_con_callback_prog TYPE rsdsprog
* VALUE 'RFTI_TEMPL_TRL_VIA_FUBA',
VALUE sy-repid,
* callback form name
g_con_callback_form TYPE rsdsform VALUE 'CALLBACK_FORM'.
************************************************************************
* Declare the internal tables of the required type here
************************************************************************
DATA:
* transport of report selection to LDB via LDB_PROCESS:
g_wrk_ldb_fields TYPE rsfs_tab_fields,
g_tab_ldb_fields TYPE rsfs_fields,
gt_rsparams TYPE rsparams_tt,
gt_errors TYPE bapierr_t,
*### result data from LDB( Enter the LDB name accordingly)
g_tab_ldb_result TYPE TABLE OF fti_ldb_tr_positions,
g_wrk_ldb_result TYPE fti_ldb_tr_positions,
*### output data ( Enter the output structure name accordingly)
g_tab_output_result TYPE TABLE OF fti_templ_output_fields.
DATA: gwa_callback TYPE ldbcb,
gt_callback TYPE ldbcb_tt.
************************************************************************
****
* selection screen
* ###
* Please modify the selection screen as per the requirements)
************************************************************************
****
* block 1 - product categories
---------------------------------------------*
selection-screen: begin of block b1 with frame title text-s01.
SELECTION-SCREEN BEGIN OF LINE.
PARAMETER: p_jse TYPE fti_ldb_flg_se.
SELECTION-SCREEN COMMENT 3(30) text-f01 FOR FIELD p_jse.
SELECTION-SCREEN POSITION 34.
PARAMETER: p_jotc TYPE fti_ldb_flg_otc.
SELECTION-SCREEN COMMENT 37(43) text-f02 FOR FIELD p_jotc.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
PARAMETER: p_jlo TYPE fti_ldb_flg_lo.
SELECTION-SCREEN COMMENT 3(30) text-f03 FOR FIELD p_jlo.
SELECTION-SCREEN POSITION 34.
PARAMETER: p_jlof TYPE fti_ldb_flg_lof.
SELECTION-SCREEN COMMENT 37(40) text-f04 FOR FIELD p_jlof.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN: END OF BLOCK b1.
* block 2 - selections ------------------------------------------------*
SELECTION-SCREEN: BEGIN OF BLOCK b2 WITH FRAME TITLE text-s02.
SELECT-OPTIONS: s_bukrs FOR fti_templ_selscreen_items-company_code
OBLIGATORY,
s_vlarea FOR fti_templ_selscreen_items-valuation_area
NO-EXTENSION
NO INTERVALS
OBLIGATORY,
s_valcls FOR fti_templ_selscreen_items-valuation_class,
s_gsart FOR fti_templ_selscreen_items-prod_type,
s_ranlse FOR fti_templ_selscreen_items-security_id,
s_rldepo FOR fti_templ_selscreen_items-security_account,
s_rfha FOR fti_templ_selscreen_items-deal_number,
s_ranlvd FOR fti_templ_selscreen_items-loans_contract.
PARAMETERS: p_date TYPE fti_stichtag
OBLIGATORY
DEFAULT sy-datum,
p_rst_pb TYPE fti_rstich_pb
OBLIGATORY
AS LISTBOX VISIBLE LENGTH 20
DEFAULT '1',
p_var TYPE slis_vari,
p_errlog TYPE fti_ldb_tr_parameters-flg_errlog_output
AS CHECKBOX,
p_logsav TYPE fti_ldb_tr_parameters-flg_ballog_db_save
AS CHECKBOX.
SELECTION-SCREEN: END OF BLOCK b2.
* block 3 - output control --------------------------------------------*
SELECTION-SCREEN: BEGIN OF BLOCK b3 WITH FRAME TITLE text-s03.
*selection-screen comment 01(11) text-f10 for field p_skalv. "Skalierung
PARAMETERS: p_skflg TYPE xfeld AS CHECKBOX.
PARAMETERS: p_skalv TYPE ts70skal_vor DEFAULT '3'.
PARAMETERS: p_decim TYPE ts70skal_nach DEFAULT '0'.
SELECTION-SCREEN: END OF BLOCK b3.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_var.
  PERFORM fill_f4_layout CHANGING p_var.

AT SELECTION-SCREEN.
  IF p_jse IS INITIAL AND
  p_jlo IS INITIAL AND
  p_jotc IS INITIAL AND
  p_jlof IS INITIAL.
    MESSAGE w003(fti_ldb_message).
  ENDIF.
************************************************************************
* begin main program:
************************************************************************
***** START-OF-SELECTION:
START-OF-SELECTION.
*??? add additional required checks
END-OF-SELECTION.
************************************************************************
***** END-OF-SELECTION
**Fills all the parameters from the query definition into a structure
  PERFORM fill_req_ldb_ccsf
  USING gt_con_name_ldb_struc
  g_con_ldbnode
  CHANGING g_tab_ldb_fields.
* selects data via LDB and populates 'g_tab_ldb_result' which contains
* the result data
*??? Delete the report specific select options from gt_rsparams[]
  PERFORM call_ldb.
*??? Add additional logic in the below form routine to add addn. fields
* to the result data
  PERFORM process_ldbdata_to_resultdata.
*??? Add additional logic in field-catalog if needed (output via ALV)
  PERFORM alv_output.
************************************************************************
***** INCLUDES
  INCLUDE zfti_templ_trl_via_fuba_setf01.
  INCLUDE zfti_templ_trl_via_fuba_wrif01.
*----------------------------------------------------------------------*
***INCLUDE ZFTI_TEMPL_TRL_VIA_FUBA_SETF01 .
*----------------------------------------------------------------------*
*&---------------------------------------------------------------------*
*& Form call_ldb
*&---------------------------------------------------------------------*
* 1. transform type of select-options
* 2. call LDB via LDB_PROCESS masked by FTI_TEMPL_TRL_LDB_BY_FUBA
* 3. data are given back in callback routine
*----------------------------------------------------------------------*
FORM call_ldb.
  DATA:
  lwa_sel_ddic_map TYPE fti_rep_temp_map,
  lt_sel_ddic_map TYPE TABLE OF fti_rep_temp_map,
  lwa_rsparams TYPE rsparams,
  lt_rsparams TYPE TABLE OF rsparams,
  lwa_error TYPE bapierr,
  l_program_map TYPE programm.
  FIELD-SYMBOLS:
  <wa_rsparams> TYPE rsparams.
  l_program_map = sy-cprog.
** gets complete selections from selection screen
  CALL FUNCTION 'RS_REFRESH_FROM_SELECTOPTIONS'
       EXPORTING
            curr_report     = sy-cprog
       TABLES
            selection_table = lt_rsparams
       EXCEPTIONS
            not_found       = 1
            no_report       = 2
            OTHERS          = 3.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
    WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.
** cleansing of LT_RSPARAMS from system generated entries:
  LOOP AT lt_rsparams ASSIGNING <wa_rsparams>.
    IF <wa_rsparams>-selname CP '%*' OR
    <wa_rsparams>-selname CP 'SP$*'.
      DELETE lt_rsparams INDEX sy-tabix.
    ENDIF.
    IF <wa_rsparams>-low IS INITIAL AND <wa_rsparams>-high IS INITIAL .
      DELETE lt_rsparams INDEX sy-tabix.
    ENDIF.
  ENDLOOP.
** modifying LT_RSPARAMS:
  LOOP AT lt_rsparams ASSIGNING <wa_rsparams>.
    IF <wa_rsparams>-selname EQ 'P_DATE'.
      MOVE: 'I' TO <wa_rsparams>-sign,
      'EQ' TO <wa_rsparams>-option,
      'S' TO <wa_rsparams>-kind,
      'S_DATS' TO <wa_rsparams>-selname.
    ENDIF.
  ENDLOOP.
** load mapping data:
  SELECT * FROM (gt_con_dbmap_name)
  INTO TABLE lt_sel_ddic_map
  WHERE programm = l_program_map.
** sorting
  SORT lt_sel_ddic_map BY selparam_prog.
  SORT lt_rsparams BY selname.
** Loop through each row and get its corresponding sel. param for the
  ldb
***??? Delete the Param's which donot belong to LDB
  loop at lt_rsparams assigning <wa_rsparams>.
  READ TABLE lt_sel_ddic_map INTO lwa_sel_ddic_map
  WITH KEY programm = l_program_map
  selparam_prog = <wa_rsparams>-selname.
  IF sy-subrc EQ 0.
    <wa_rsparams>-selname = lwa_sel_ddic_map-selparam_ldb.
  ENDIF.
  IF <wa_rsparams>-selname EQ 'P_SKFLG'.
    CONTINUE.
  ENDIF.
  IF <wa_rsparams>-selname EQ 'P_SKALV'.
    CONTINUE.
  ENDIF.
  IF <wa_rsparams>-selname EQ 'P_DECIM'.
    CONTINUE.
  ENDIF.
  APPEND <wa_rsparams> TO gt_rsparams[].
ENDLOOP.
**call to fuba
gwa_callback-ldbnode = g_con_ldbnode.
gwa_callback-get = ftico_xtrue.
gwa_callback-get_late = ftico_xfalse.
gwa_callback-cb_prog = g_con_callback_prog.
gwa_callback-cb_form = g_con_callback_form.
APPEND gwa_callback TO gt_callback.
*** call the LDB:
CALL FUNCTION 'LDB_PROCESS'
     EXPORTING
          ldbname                     = g_con_ldbname
          field_selection             = g_tab_ldb_fields
     TABLES
          callback                    = gt_callback
          selections                  = gt_rsparams
     EXCEPTIONS
          ldb_not_reentrant           = 1
          ldb_incorrect               = 2
          ldb_already_running         = 3
          ldb_error                   = 4
          ldb_selections_error        = 5
          ldb_selections_not_accepted = 6
          variant_not_existent        = 7
          variant_obsolete            = 8
          variant_error               = 9
          free_selections_error       = 10
          callback_no_event           = 11
          callback_node_duplicate     = 12
          callback_no_program         = 13
          callback_no_cbform          = 14
          dyn_node_no_type            = 15
          dyn_node_invalid_type       = 16
          OTHERS                      = 17.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
  WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDFORM. " call_ldb
*&--------------------------------------------------------------------*
*& Form callback_form
*&--------------------------------------------------------------------*
* Callback form for LDB
* Workarea will be filled from LDB
* results are then stored in a global table
*---------------------------------------------------------------------*
FORM callback_form                                          "#EC CALLED
USING name TYPE ldbn-ldbnode
workarea TYPE fti_ldb_tr_positions
mode TYPE c
selected TYPE c.
  MOVE-CORRESPONDING workarea TO g_wrk_ldb_result.
  APPEND g_wrk_ldb_result TO g_tab_ldb_result[].
ENDFORM. " callback_form
*&---------------------------------------------------------------------*
*& Form process_ldbdata_to_resultdata
*&---------------------------------------------------------------------*
* Here the result data of a ldb call can be processed and
* prepared for output
*----------------------------------------------------------------------*
FORM process_ldbdata_to_resultdata.
*** Changes to data cld be done here
ENDFORM. " process_ldbdata_to_resultdata
*&---------------------------------------------------------------------*
*& Form set_alv_fieldcat_n_Layout
*&---------------------------------------------------------------------*
*----------------------------------------------------------------------*
FORM set_alv_fieldcat_n_layout
CHANGING c_layout TYPE slis_layout_alv
c_tab_fieldcat TYPE slis_t_fieldcat_alv.
  FIELD-SYMBOLS: <wa_fieldcat> TYPE slis_fieldcat_alv.
** create default field catalogue with DDIC information of
** output structure:
  CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
  EXPORTING
* I_PROGRAM_NAME = g_con_callback_prog
* I_INTERNAL_TABNAME =
  i_structure_name = g_con_name_alv_struc
  i_client_never_display = 'X'
* I_INCLNAME =
* I_BYPASSING_BUFFER =
* I_BUFFER_ACTIVE =
  CHANGING
  ct_fieldcat = c_tab_fieldcat
  EXCEPTIONS
  inconsistent_interface = 1
  program_error = 2
  OTHERS = 3.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
    WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.
** modify the field catalogue in a specific required way:
  IF p_skflg = ftico_xtrue.
    IF <wa_fieldcat>-fieldname CP '*_LC' OR
    <wa_fieldcat>-fieldname CP '*_PC'.
      <wa_fieldcat>-round = p_skalv.
      <wa_fieldcat>-decimals_out = p_decim.
    ENDIF.
  ENDIF.
ENDLOOP.
ENDFORM. " set_alv_fieldcat_n_layout
*&---------------------------------------------------------------------*
*& Form alv_output
*&---------------------------------------------------------------------*
*----------------------------------------------------------------------*
FORM alv_output.
  DATA: l_layout TYPE slis_layout_alv,
  lt_fieldcat TYPE slis_t_fieldcat_alv,
  l_wrk_variant LIKE disvariant.
**??? Add additional logic to build the field catalog (example of a
  layout given)
  perform set_alv_fieldcat_n_layout
  changing l_layout
  lt_fieldcat.
**Variant
  l_wrk_variant-report = sy-repid.
  l_wrk_variant-username = sy-uname.
  l_wrk_variant-variant = p_var.
**??? Add the required addn parameters ( example of an ALV call given)
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
  EXPORTING
* I_INTERFACE_CHECK = ' '
* I_BYPASSING_BUFFER = ' '
* I_BUFFER_ACTIVE = ' '
  i_callback_program = sy-repid
* I_CALLBACK_PF_STATUS_SET = ' '
* I_CALLBACK_USER_COMMAND = ' '
  i_callback_top_of_page = 'PRINT_TOP'
* I_CALLBACK_HTML_TOP_OF_PAGE = ' '
* I_CALLBACK_HTML_END_OF_LIST = ' '
* i_structure_name = 'FTI_TEMPL_OUTPUT_LIST_FIELDS'
* I_BACKGROUND_ID = ' '
* I_GRID_TITLE =
* I_GRID_SETTINGS =
* IS_LAYOUT =
  it_fieldcat = lt_fieldcat[]
* IT_EXCLUDING =
* IT_SPECIAL_GROUPS =
* IT_SORT =
* IT_FILTER =
* IS_SEL_HIDE =
* I_DEFAULT = 'X'
  i_save = 'A'
  is_variant = l_wrk_variant
* IT_EVENTS =
* IT_EVENT_EXIT =
* IS_PRINT =
* IS_REPREP_ID =
* I_SCREEN_START_COLUMN = 0
* I_SCREEN_START_LINE = 0
* I_SCREEN_END_COLUMN = 0
* I_SCREEN_END_LINE = 0
* I_HTML_HEIGHT_TOP = 0
* I_HTML_HEIGHT_END = 0
* IT_ALV_GRAPHICS =
* IT_HYPERLINK =
* IT_ADD_FIELDCAT =
* IT_EXCEPT_QINFO =
* IR_SALV_FULLSCREEN_ADAPTER =
* IMPORTING
* E_EXIT_CAUSED_BY_CALLER =
* ES_EXIT_CAUSED_BY_USER =
  TABLES
  t_outtab = g_tab_output_result
  EXCEPTIONS
  program_error = 1
  OTHERS = 2.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
    WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.
ENDFORM. " alv_output
*&--------------------------------------------------------------------*
*& FORM print_top *
*&--------------------------------------------------------------------*
FORM print_top.                                             "#EC CALLED
  DATA: l_tab_commentary TYPE slis_t_listheader,
  l_wrk_commentary LIKE LINE OF l_tab_commentary,
  text(100) TYPE c,
  e_date(10) TYPE c,
  f_date(10) TYPE c,
  d_date(10) TYPE c,
  z_date(10) TYPE c,
  r_date(10) TYPE c,
  l_txt_int_rate(10) TYPE c.
** Example for layouting ALV header:
* Convert key date into printable format
  WRITE p_date TO f_date.
** In the list header there is supported the output of different
** "information types" with different font sizes
* Typ 'H' (Header) - Hauptuberschrift
  l_wrk_commentary-typ = 'H'.
  l_wrk_commentary-info = 'Test-Bestandsliste TR'.
  APPEND l_wrk_commentary TO l_tab_commentary.
* Typ 'S' (Selektion) - Informationen zur Selektions
* (hier z.B. Selektionsdatum)
  l_wrk_commentary-typ = 'S'.
  l_wrk_commentary-info = f_date.
  APPEND l_wrk_commentary TO l_tab_commentary.
* interne Tabelle mit den Listkopf-Infos wird
* im HTML-Control angezeigt:
  CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
       EXPORTING
            it_list_commentary = l_tab_commentary.
ENDFORM. "print_top
*&---------------------------------------------------------------------*
*& Form fill_req_ldb_ccsf
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* -->P_GT_CON_NAME_LDB_STRUC text
* <--P_G_TAB_LDB_FIELDS text
*----------------------------------------------------------------------*
FORM fill_req_ldb_ccsf USING u_con_name_ldb_struc TYPE ddobjname
u_node TYPE ldbnode
CHANGING c_tab_ldb_fields TYPE rsfs_fields.
  DATA: lt_dd03p LIKE dd03p OCCURS 0 WITH HEADER LINE,
  lwa_ccsf TYPE rsfs_tab_fields.
  CALL FUNCTION 'DDIF_TABL_GET'
       EXPORTING
            name          = u_con_name_ldb_struc
       TABLES
            dd03p_tab     = lt_dd03p
       EXCEPTIONS
            illegal_input = 1
            OTHERS        = 2.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
    WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.
  MOVE u_node TO lwa_ccsf-tablename.
  LOOP AT lt_dd03p.
    APPEND lt_dd03p-fieldname TO
    lwa_ccsf-fields.
  ENDLOOP.
  SORT lwa_ccsf-fields.
  APPEND lwa_ccsf TO c_tab_ldb_fields .
ENDFORM. " fill_req_ldb_ccsf
*&---------------------------------------------------------------------*
*& Form fill_f4_layout
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* <--P_P_VAR text
*----------------------------------------------------------------------*
FORM fill_f4_layout CHANGING c_var TYPE slis_vari.
  DATA: l_wrk_variant TYPE disvariant,
  l_exit TYPE c.
  l_wrk_variant-report = sy-repid.
  l_wrk_variant-username = sy-uname.
  CALL FUNCTION 'REUSE_ALV_VARIANT_F4'
       EXPORTING
            is_variant = l_wrk_variant
            i_save     = 'A'
       IMPORTING
            e_exit     = l_exit
            es_variant = l_wrk_variant
       EXCEPTIONS
            not_found  = 1.
  IF sy-subrc = 1.
    MESSAGE ID sy-msgid TYPE 'S' NUMBER sy-msgno
    WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ELSEIF l_exit = space.
    c_var = l_wrk_variant-variant.
  ENDIF.
ENDFORM. " fill_f4_layout
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