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Display ANY internal table in ALV



 
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PostPosted: Tue Sep 11, 2007 8:40 pm    Post subject: Display ANY internal table in ALV Reply with quote

Code:
*----------------------------------------------------------------------*
*   INCLUDE Z_DISPLAY_TABLE
*----------------------------------------------------------------------*
*   Display ANY table by reference
*   Table must be defined with TYPE statement (object oriented)
*
*   HOW TO USE
*     - include this program into your program (data definition part)
*     - CALL METHOD lcl_table_display=>display_list or display_grid
*         EXPORTING data = yourinternaltable
*
*----------------------------------------------------------------------*
*   Author: Franзois Henrotte (EPONA Solutions)
*   Site:   www.eponasolutions.com
*----------------------------------------------------------------------*


*----------------------------------------------------------------------*
*   LCL_TABLE_DISPLAY DEFINITION
*----------------------------------------------------------------------*
CLASS lcl_table_display DEFINITION.

  PUBLIC SECTION.

    TYPE-POOLS: abap, slis.

    CLASS-METHODS: display_list IMPORTING in_data TYPE STANDARD TABLE,
                   display_grid IMPORTING in_data TYPE STANDARD TABLE.

    METHODS: constructor IMPORTING in_data TYPE STANDARD TABLE
                         EXCEPTIONS casting_error
                                    empty_fieldcat.

    METHODS: output_list,
             output_grid.

    METHODS: set_table_name   IMPORTING in_tabname  TYPE any,
             set_alv_title    IMPORTING in_title    TYPE any,
             set_alv_settings IMPORTING in_settings TYPE any,
             set_alv_layout   IMPORTING in_layout   TYPE any,
             set_alv_event    IMPORTING in_name     TYPE any
                                        in_form     TYPE any.


  PRIVATE SECTION.

    CLASS-DATA: g_table_object TYPE REF TO lcl_table_display.

    TYPES: BEGIN OF ty_defin,
             fieldname     TYPE fieldname,
             ref_tabname   TYPE tabname,
             ref_fieldname TYPE fieldname,
           END OF ty_defin.

    DATA: g_repid  TYPE repid,
          g_struc  TYPE tabname,
          g_table  TYPE tabname.

    DATA: gt_data  TYPE REF TO data.

    DATA: g_title  TYPE lvc_title,
          gt_fcat  TYPE slis_t_fieldcat_alv,
          gs_sett  TYPE lvc_s_glay,
          gs_layo  TYPE slis_layout_alv,
          gt_evnt  TYPE slis_t_event.

    DATA: gt_defin TYPE TABLE OF ty_defin,
          g_level  TYPE tabname.


    METHODS: output_table IMPORTING data TYPE REF TO data
                                    mode TYPE c,

             fill_fieldcat IMPORTING repid TYPE repid
                                     struc TYPE tabname
                            CHANGING fcat  TYPE slis_t_fieldcat_alv
                          EXCEPTIONS no_definition,
             get_definition IMPORTING repid TYPE repid
                                      struc TYPE tabname
                             CHANGING abap  TYPE rsfb_source,
             recursive_definition IMPORTING repid TYPE repid
                                   CHANGING abap  TYPE rsfb_source,

             map_structure IMPORTING source TYPE any
                            CHANGING destin TYPE any.
ENDCLASS.


*----------------------------------------------------------------------*
*   LCL_TABLE_DISPLAY IMPLEMENTATION
*----------------------------------------------------------------------*
CLASS lcl_table_display IMPLEMENTATION.
***
*   Display table in ALV list
***
  METHOD display_list.
    IF NOT g_table_object IS INITIAL.
      FREE: g_table_object.
    ENDIF.
    CREATE OBJECT g_table_object EXPORTING in_data = in_data.
    CALL METHOD g_table_object->output_list.
  ENDMETHOD.
***
*   Display table in ALV grid
***
  METHOD display_grid.
    IF NOT g_table_object IS INITIAL.
      FREE: g_table_object.
    ENDIF.
    CREATE OBJECT g_table_object EXPORTING in_data = in_data.
    CALL METHOD g_table_object->output_grid.
  ENDMETHOD.
***
*   Create table display
***
  METHOD constructor.
    DATA: ls_data TYPE REF TO data.

    DATA: ob_desc TYPE REF TO cl_abap_structdescr.

    DATA: l_absol TYPE char200,
          l_repid TYPE repid,
          l_struc TYPE tabname.

    FIELD-SYMBOLS: <table> TYPE STANDARD TABLE,
                   <struc> TYPE ANY.

*   Get data and store it into attribute
    CREATE DATA me->gt_data LIKE in_data.
    ASSIGN me->gt_data->* TO <table>.
    <table> = in_data.

*   Get global data definition
    CREATE DATA ls_data LIKE LINE OF <table>.
    ASSIGN ls_data->* TO <struc>.
    CATCH SYSTEM-EXCEPTIONS assign_casting_illegal_cast = 1.
      ob_desc ?= cl_abap_typedescr=>describe_by_data( <struc> ).
    ENDCATCH.
    IF sy-subrc = 1.
      RAISE casting_error.
    ENDIF.

*   Get program name and main type used to define table
    l_absol = ob_desc->absolute_name.
    SPLIT l_absol AT '\TYPE=' INTO l_repid l_struc.
    SHIFT l_repid UP TO '='.
    SHIFT l_repid.

    CHECK l_struc NP '%_*'.

    IF me->g_repid NE l_repid
    OR me->g_struc NE l_struc.
*     Set attributes
      me->g_repid = l_repid.
      me->g_struc = l_struc.

      me->g_table = l_struc.
      REPLACE 'TY' WITH 'WT' INTO me->g_table.

*     Field catalog
      CALL METHOD fill_fieldcat EXPORTING repid = l_repid
                                          struc = l_struc
                                 CHANGING fcat  = me->gt_fcat.
      IF me->gt_fcat IS INITIAL.
        RAISE empty_fieldcat.
      ENDIF.
    ENDIF.
  ENDMETHOD.
***
*   Output list
***
  METHOD output_list.
    CALL METHOD output_table EXPORTING data = me->gt_data
                                       mode = 'L'.
  ENDMETHOD.
***
*   Output grid
***
  METHOD output_grid.
    CALL METHOD output_table EXPORTING data = me->gt_data
                                       mode = 'G'.
  ENDMETHOD.
***
*   Output table
***
  METHOD output_table.
    DATA: ls_vari TYPE disvariant.

    FIELD-SYMBOLS: <table> TYPE STANDARD TABLE.

    ASSIGN me->gt_data->* TO <table>.

*   Get default user variant
    ls_vari-report = me->g_repid.
    ls_vari-username = sy-uname.
    CALL FUNCTION 'REUSE_ALV_VARIANT_DEFAULT_GET'
         EXPORTING
              i_save     = 'U'
         CHANGING
              cs_variant = ls_vari
         EXCEPTIONS
              OTHERS     = 0.

*   Display table contents
    IF mode = 'G'.
      CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
           EXPORTING
                i_callback_program = me->g_repid
                i_grid_title       = me->g_title
                i_grid_settings    = me->gs_sett
                is_layout          = me->gs_layo
                it_fieldcat        = me->gt_fcat
                i_save             = 'U'
                is_variant         = ls_vari
                it_events          = me->gt_evnt
           TABLES
                t_outtab           = <table>
           EXCEPTIONS
                OTHERS             = 0.
    ELSE.
      CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
           EXPORTING
                i_callback_program = me->g_repid
                is_layout          = me->gs_layo
                it_fieldcat        = me->gt_fcat
                i_save             = 'U'
                is_variant         = ls_vari
                it_events          = me->gt_evnt
           TABLES
                t_outtab           = <table>
           EXCEPTIONS
                OTHERS             = 0.
    ENDIF.
  ENDMETHOD.
***
*   Fill field catalog
***
  METHOD fill_fieldcat.
    DATA: lt_abap   TYPE TABLE OF rssource.

    DATA: ls_defin  TYPE ty_defin.

    DATA: lt_dfies  TYPE TABLE OF dfies,
          ls_dfies  TYPE dfies,
          ls_dd04v  TYPE dd04v,
          ls_dd01v  TYPE dd01v,
          l_flong   TYPE dfies-lfieldname,
          l_dname   TYPE dfies-domname.

    DATA: ls_fcat   TYPE slis_fieldcat_alv,
          ls_fcat2  TYPE slis_fieldcat_alv.

    DATA: l_index   TYPE i,
          l_nbfld   TYPE i.

    FREE: me->gt_defin.

*   Process data definition
    CALL METHOD get_definition EXPORTING repid = repid
                                         struc = struc
                                CHANGING abap  = lt_abap.

*   Process sub levels if required
    CALL METHOD recursive_definition EXPORTING repid = repid
                                      CHANGING abap  = lt_abap.

    IF me->gt_defin IS INITIAL.
      RAISE no_definition.
    ENDIF.

    LOOP AT me->gt_defin INTO ls_defin.
      CLEAR: ls_fcat.
      MOVE-CORRESPONDING ls_defin TO ls_fcat.
*     Retrieve info about this field
      FREE: ls_dfies, ls_dd04v, ls_dd01v, l_dname.
      l_flong = ls_fcat-ref_fieldname.
      SET LOCALE LANGUAGE 'E'.
      TRANSLATE: ls_fcat-ref_tabname   TO UPPER CASE,
                 ls_fcat-ref_fieldname TO UPPER CASE,
                 l_flong               TO UPPER CASE.
      IF NOT ls_fcat-ref_tabname IS INITIAL.
*       Try to get info about field in table
        CALL FUNCTION 'DDIF_FIELDINFO_GET'
             EXPORTING
                  tabname        = ls_fcat-ref_tabname
                  fieldname      = ls_fcat-ref_fieldname
                  lfieldname     = l_flong
             IMPORTING
                  dfies_wa       = ls_dfies
             EXCEPTIONS
                  not_found      = 1
                  internal_error = 2
                  OTHERS         = 3.
        IF sy-subrc = 0.
          MOVE-CORRESPONDING ls_dfies TO ls_fcat.
          ls_fcat-fieldname = ls_defin-fieldname.
          MOVE: ls_dfies-keyflag   TO ls_fcat-key,
                ls_dfies-scrtext_m TO ls_fcat-seltext_l,
                ls_dfies-domname   TO l_dname.
        ENDIF.
      ELSE.
*       Try to get info about structure
        ls_defin-ref_tabname = ls_defin-ref_fieldname.
        CALL FUNCTION 'DDIF_FIELDINFO_GET'
             EXPORTING
                  tabname   = ls_defin-ref_tabname
             TABLES
                  dfies_tab = lt_dfies
             EXCEPTIONS
                  OTHERS    = 0.
        IF NOT lt_dfies IS INITIAL.
*         Process fields of this structure
          LOOP AT lt_dfies INTO ls_dfies.
            CLEAR: ls_fcat.
            MOVE-CORRESPONDING ls_dfies TO ls_fcat.
            CONCATENATE ls_defin-fieldname ls_fcat-fieldname
                   INTO ls_fcat-fieldname
              SEPARATED BY '-'.
            MOVE ls_dfies-keyflag TO ls_fcat-key.
            MOVE ls_dfies-scrtext_m TO ls_fcat-seltext_l.
            ls_fcat-tabname = me->g_table.
            CLEAR: ls_fcat-col_pos,
                   ls_fcat-offset.
            IF ls_fcat-ref_tabname IS INITIAL.
              ls_fcat-ddictxt = 'L'.
            ENDIF.
*           Display Yes/No fields as checkboxes
            IF ls_dfies-domname = 'XFELD'.
              ls_fcat-checkbox = 'X'.
            ENDIF.

*           Add field to field catalog
            APPEND ls_fcat TO fcat.
          ENDLOOP.
        ELSE.
*         Try to get info about data element
          CALL FUNCTION 'DDIF_DTEL_GET'
               EXPORTING
                    name          = ls_fcat-ref_fieldname
                    langu         = sy-langu
               IMPORTING
                    dd04v_wa      = ls_dd04v
               EXCEPTIONS
                    illegal_input = 1
                    OTHERS        = 2.
          IF sy-subrc = 0.
            MOVE-CORRESPONDING ls_dd04v TO ls_fcat.
            MOVE: ls_dd04v-scrtext_m TO ls_fcat-seltext_l,
                  ls_dd04v-domname   TO l_dname.
          ELSE.
*           Finally try to get info about domain
            CALL FUNCTION 'DDIF_DOMA_GET'
                 EXPORTING
                      name          = ls_fcat-ref_fieldname
                      langu         = sy-langu
                 IMPORTING
                      dd01v_wa      = ls_dd01v
                 EXCEPTIONS
                      illegal_input = 1
                      OTHERS        = 2.
            IF sy-subrc = 0.
              MOVE-CORRESPONDING ls_dd01v TO ls_fcat.
              MOVE: ls_dd01v-ddtext  TO ls_fcat-seltext_l,
                    ls_dd01v-domname TO l_dname.
            ENDIF.
          ENDIF.
        ENDIF.
      ENDIF.
*     Table name must be internal table containing data
      ls_fcat-tabname = g_table.
*     No offset
      CLEAR: ls_fcat-offset.
*     Default text is stored in long text
      IF ls_fcat-ref_tabname IS INITIAL.
        ls_fcat-ddictxt = 'L'.
      ENDIF.
*     Display Yes/No fields as checkboxes
      IF l_dname = 'XFELD'.
        ls_fcat-checkbox = 'X'.
      ENDIF.

*     Add field to field catalog
      APPEND ls_fcat TO fcat.
    ENDLOOP.
*   Link between fields
    DESCRIBE TABLE fcat LINES l_nbfld.
    LOOP AT fcat INTO ls_fcat.
      IF sy-tabix NE l_nbfld.
        l_index = sy-tabix + 1.
        READ TABLE fcat INTO ls_fcat2 INDEX l_index.
        IF sy-subrc = 0.
          IF ls_fcat-datatype = 'CURR'.
*           Currency unit
            IF ls_fcat2-datatype = 'CUKY'.
              ls_fcat-cfieldname = ls_fcat2-fieldname.
              ls_fcat-ctabname   = ls_fcat2-tabname.
              MODIFY fcat FROM ls_fcat.
            ELSE.
              LOOP AT fcat INTO ls_fcat2
                           FROM l_index
                          WHERE datatype = 'CUKY'.
*               First currency unit after field
                ls_fcat-cfieldname = ls_fcat2-fieldname.
                ls_fcat-ctabname   = ls_fcat2-tabname.
                MODIFY fcat FROM ls_fcat.
                EXIT.
              ENDLOOP.
              IF sy-subrc NE 0.
*               No currency unit after field, try before
                READ TABLE fcat INTO ls_fcat2
                            WITH KEY datatype = 'CUKY'.
                IF sy-subrc = 0.
                  ls_fcat-cfieldname = ls_fcat2-fieldname.
                  ls_fcat-ctabname   = ls_fcat2-tabname.
                  MODIFY fcat FROM ls_fcat.
                ENDIF.
              ENDIF.
            ENDIF.
          ENDIF.
          IF ls_fcat-datatype = 'QUAN'.
*           Quantity unit
            IF ls_fcat2-datatype = 'UNIT'.
              ls_fcat-cfieldname = ls_fcat2-fieldname.
              ls_fcat-ctabname   = ls_fcat2-tabname.
              MODIFY fcat FROM ls_fcat.
            ENDIF.
          ENDIF.
        ENDIF.
      ENDIF.
    ENDLOOP.
  ENDMETHOD.
***
*   Get definition of type from code source
***
  METHOD get_definition.
    DATA: l_strng TYPE rssource,
          ls_abap TYPE rssource,
          l_fdpos TYPE i,
          l_first TYPE i,
          l_lastr TYPE i.

    DATA: lt_incl TYPE TABLE OF repid,
          ls_incl TYPE repid.

*   Get program code
    READ REPORT repid INTO abap.
    CHECK sy-subrc EQ 0.

*   Get first line of definition
    CONCATENATE 'BEGIN OF' struc INTO l_strng
                            SEPARATED BY space.
    LOOP AT abap INTO ls_abap.
      IF ls_abap CS l_strng.
        l_fdpos = strlen( l_strng ) + sy-fdpos.
        IF ls_abap+l_fdpos(1) CA ', "'.
          l_first = sy-tabix.
          EXIT.
        ENDIF.
      ENDIF.
    ENDLOOP.
    IF l_first IS INITIAL.
*     Table is defined in an include
      CALL FUNCTION 'RS_GET_ALL_INCLUDES'
           EXPORTING
                program    = repid
           TABLES
                includetab = lt_incl
           EXCEPTIONS
                OTHERS     = 1.
      IF sy-subrc = 0.
        LOOP AT lt_incl INTO ls_incl.
*         Try to find definition in this include
          READ REPORT ls_incl INTO abap.
          LOOP AT abap INTO ls_abap.
            IF ls_abap CS l_strng.
              l_fdpos = strlen( l_strng ) + sy-fdpos.
              IF ls_abap+l_fdpos(1) CA ',. "'.
                l_first = sy-tabix.
                EXIT.
              ENDIF.
            ENDIF.
          ENDLOOP.
          IF NOT l_first IS INITIAL.
            EXIT.
          ENDIF.
        ENDLOOP.
      ENDIF.
    ENDIF.

*   Get last line of definition
    CONCATENATE 'END OF' struc INTO l_strng
                          SEPARATED BY space.
    LOOP AT abap INTO ls_abap.
      IF ls_abap CS l_strng.
        l_fdpos = strlen( l_strng ) + sy-fdpos.
        IF ls_abap+l_fdpos(1) CA ',. "'.
          l_lastr = sy-tabix - l_first.
          EXIT.
        ENDIF.
      ENDIF.
    ENDLOOP.

*   Keep only relevant code lines
    IF l_first LE 0
    OR l_lastr LE 0.
      REFRESH abap.
    ELSE.
      DELETE abap TO l_first.
      DELETE abap FROM l_lastr.
    ENDIF.
  ENDMETHOD.
***
*   Get definition of type recursively
***
  METHOD recursive_definition.
    DATA: lt_token TYPE TABLE OF stokex,
          ls_token TYPE stokex,
          lt_state TYPE TABLE OF sstmnt,
          ls_state TYPE sstmnt.

    DATA: ls_defin TYPE ty_defin,
          l_reffld TYPE fieldname.

    DATA: lt_recu  TYPE TABLE OF rssource.

*   Retrieve tokens
    SCAN ABAP-SOURCE abap
              TOKENS INTO lt_token
          STATEMENTS INTO lt_state.

    LOOP AT lt_state INTO ls_state.
      CLEAR: ls_defin.
*     Field name
      READ TABLE lt_token INTO ls_token
                         INDEX ls_state-from.
      ls_defin-fieldname = ls_token-str.
*     Reference type
      READ TABLE lt_token INTO ls_token
                         INDEX ls_state-to.
      l_reffld = ls_token-str.
*     Check if this type is defined in program
      FREE: lt_recu.
      CALL METHOD get_definition EXPORTING repid = repid
                                           struc = l_reffld
                                  CHANGING abap  = lt_recu.
      IF lt_recu IS INITIAL.
        IF NOT g_level IS INITIAL.
         CONCATENATE g_level ls_defin-fieldname INTO ls_defin-fieldname
                                                       SEPARATED BY '-'.
          CONDENSE ls_defin-fieldname.
        ENDIF.
        IF l_reffld CS '-'.
          SPLIT l_reffld AT '-'
                       INTO ls_defin-ref_tabname
                            ls_defin-ref_fieldname.
          IF ls_defin-ref_tabname = 'SY'.
            ls_defin-ref_tabname = 'SYST'.
          ENDIF.
        ELSE.
          ls_defin-ref_fieldname = ls_token-str.
        ENDIF.
        APPEND ls_defin TO me->gt_defin.
      ELSE.
*       Process sub levels
        IF me->g_level IS INITIAL.
          me->g_level = ls_defin-fieldname.
        ELSE.
          CONCATENATE me->g_level ls_defin-fieldname INTO me->g_level
                                             SEPARATED BY '-'.
        ENDIF.
        CALL METHOD recursive_definition EXPORTING repid = repid
                                          CHANGING abap  = lt_recu.
        IF me->g_level CS '-'.
          SHIFT me->g_level RIGHT UP TO '-'.
          SHIFT me->g_level RIGHT.
          SHIFT me->g_level LEFT DELETING LEADING space.
        ELSE.
          CLEAR: me->g_level.
        ENDIF.
      ENDIF.
    ENDLOOP.
  ENDMETHOD.
***
*   Set table name
***
  METHOD set_table_name.
    me->g_table = in_tabname.
  ENDMETHOD.
***
*   Set title
***
  METHOD set_alv_title.
    me->g_title = in_title.
  ENDMETHOD.
***
*   Set settings
***
  METHOD set_alv_settings.
    CALL METHOD map_structure EXPORTING source = in_settings
                               CHANGING destin = me->gs_sett.
  ENDMETHOD.
***
*   Set layout
***
  METHOD set_alv_layout.
    CALL METHOD map_structure EXPORTING source = in_layout
                               CHANGING destin = me->gs_layo.
  ENDMETHOD.
***
*   Add event
***
  METHOD set_alv_event.
    DATA: ls_evnt TYPE slis_alv_event.

    ls_evnt-name = in_name.
    ls_evnt-form = in_form.
    COLLECT ls_evnt INTO gt_evnt.
  ENDMETHOD.
***
*   Map fields from incoming structure into attribute
***
  METHOD map_structure.
    DATA: ob_desc  TYPE REF TO cl_abap_structdescr,
          ls_compo TYPE abap_compdescr.

    FIELD-SYMBOLS: <field> TYPE ANY,
                   <struc> TYPE ANY.

    ob_desc ?= cl_abap_typedescr=>describe_by_data( destin ).

    LOOP AT ob_desc->components INTO ls_compo.
      ASSIGN COMPONENT ls_compo-name OF STRUCTURE source TO <field>.
      IF <field> IS ASSIGNED.
        ASSIGN COMPONENT ls_compo-name OF STRUCTURE destin TO <struc>.
        CATCH SYSTEM-EXCEPTIONS conversion_errors = 1.
          MOVE <field> TO <struc>.
        ENDCATCH.
        UNASSIGN <field>.
      ENDIF.
    ENDLOOP.
  ENDMETHOD.
ENDCLASS.
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