ASSIGN Generic Data Structure to Explicit Structure

[Former Member]

Hi Experts,

I have some difficult to find the correct syntax to assign a Generic Structure to an Explicit Structure.

Please, find my code below:

Declaration METHOD:

P_BRAND Importing Type SPART
T_CUSTOINF Importing Type TY_T_ZPLPCUSTINTERFAC
NAME_STRUC Importing Type STRING
TABLE_IN Importing Type TY_T_RSBANK
FOOTER Changing Type ZINT_RSBANKINV_FILE_FOOTER
HEADER Changing Type ZINT_RSBANKINV_FILE_HEADER

IMPLEMENTATION:

METHOD mapping_t_rsbank_file_foothead.


  CONSTANTS lk_ostruct  TYPE char10 VALUE 'lo_struct'  .
  FIELD-SYMBOLS <fs>  TYPE any  .
  FIELD-SYMBOLS <fs_header> TYPE ZINT_RSBANKINV_FILE_FOOTER  .* FIELD-SYMBOLS <fs> TYPE any .
  DATA lo_struct  TYPE REF TO data  .

  DATA ls_custoinf  TYPE zplpcustinterfac  .
  DATA lt_fieldcat  TYPE lvc_t_fcat  .
  DATA ls_fieldcat  TYPE lvc_s_fcat  .
  DATA lv_tabfield  TYPE string  .

  CREATE DATA lo_struct  TYPE (name_struc) .
* Get Fieldcat from Structure
  lt_fieldcat = zclplp_tools=>get_fieldcat_from_struct( name_struc ) .

  LOOP AT lt_fieldcat INTO  ls_fieldcat  .
   CONCATENATE lk_ostruct
               ls_fieldcat-fieldname    INTO lv_tabfield
                                        SEPARATED BY zclplp_tools=>separator_arrow.
   ASSIGN (lv_tabfield) TO <fs>  .


        READ TABLE t_custoinf    INTO ls_custoinf
                                 WITH KEY name = ls_fieldcat-fieldname  .
            <fs> = ls_custoinf-low  .
   ENDLOOP  .


   BREAK-POINT.
   header ?= lo_struct.               "// DUMP


ENDMETHOD.

Any idea ?

Many thx.

Rachid.

[Former Member]

Find it:

Assign lo_struct ->* to <FS>.

header = <fs>.

Best regards.

[Former Member]

one uses ?= assignment with objects. Your "header" is a plain structure (I suppose). You can't assign those. You could try looping through the components of HEADER (do-enddo, assign component sy-index xyz of structure lo_struct to <value>). But for this purpose you would need to change the approach.

Use RTTI / RTTS for this purpose - CL_ABAP_STRUCTDESCR=>DESCRIBE_BY_NAME( NAME_STRUC ), loop through the components of the structure in a cycle - get components by CL_ABAP_STRUCTDESCR=>GET_COMPONENTS( ) and process as written.