Create/Modify/Delete records in any table from CSV file

By Pavan

Allows to create, modify or delete records based on data coming from a CSV file. No other format than CSV is allowed. A check is done on field names to be sure every key field is present in source file. This file must contain header with fields names corresponding to the DDIC (fields names must be comma separated too). Some system fields can be updated too. Test run uses a true MODIFY / DELETE statement but is followed by a Rollback.

REPORT csv_upload LINE-SIZE 255.

* Data
DATA: it_dd03p TYPE TABLE OF dd03p,
            is_dd03p TYPE dd03p.

DATA: it_rdata TYPE TABLE OF text1024,
            is_rdata TYPE text1024.

DATA: it_fields TYPE TABLE OF fieldname.

DATA: it_file TYPE REF TO data,
             is_file TYPE REF TO data.

DATA: w_error TYPE text132.


* Macros
DEFINE write_error.
   concatenate 'Error: table'
                           p_table
                           &1
                           &2
                    into w_error
     separated by space.
   condense w_error.
    write: / w_error.
    stop.
END-OF-DEFINITION.


* Field symbols
FIELD-SYMBOLS: <table> TYPE STANDARD TABLE,
                                 <data> TYPE ANY,
                                  <fs> TYPE ANY.

* Selection screen
SELECTION-SCREEN: BEGIN OF BLOCK b01 WITH FRAME TITLE text-b01.
PARAMETERS: p_file TYPE localfile DEFAULT 'C:\temp\' OBLIGATORY,
p_separ TYPE c DEFAULT ';' OBLIGATORY.
SELECTION-SCREEN: END OF BLOCK b01.

SELECTION-SCREEN: BEGIN OF BLOCK b02 WITH FRAME TITLE text-b02.
PARAMETERS: p_table TYPE tabname OBLIGATORY
MEMORY ID dtb
MATCHCODE OBJECT dd_dbtb_16.
SELECTION-SCREEN: END OF BLOCK b02.

SELECTION-SCREEN: BEGIN OF BLOCK b03 WITH FRAME TITLE text-b03.
PARAMETERS: p_create TYPE c AS CHECKBOX.
SELECTION-SCREEN: END OF BLOCK b03,
SKIP.

SELECTION-SCREEN: BEGIN OF BLOCK b04 WITH FRAME TITLE text-b04.
PARAMETERS: p_nodb RADIOBUTTON GROUP g1 DEFAULT 'X'
USER-COMMAND rg1,
p_save RADIOBUTTON GROUP g1,
p_dele RADIOBUTTON GROUP g1.
SELECTION-SCREEN: SKIP.
PARAMETERS: p_test TYPE c AS CHECKBOX,
p_list TYPE c AS CHECKBOX DEFAULT 'X'.
SELECTION-SCREEN: END OF BLOCK b04.


* At selection screen
AT SELECTION-SCREEN.
IF sy-ucomm = 'RG1'.
IF p_nodb IS INITIAL.
p_test = 'X'.
ENDIF.
ENDIF.


* At selection screen
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file.
CALL FUNCTION 'F4_FILENAME'
EXPORTING
field_name = 'P_FILE'
IMPORTING
file_name = p_file.


* Start of selection
START-OF-SELECTION.

PERFORM f_table_definition USING p_table.

PERFORM f_upload_data USING p_file.

PERFORM f_prepare_table USING p_table.

PERFORM f_process_data.

IF p_nodb IS INITIAL.
PERFORM f_modify_table.
ENDIF.

IF p_list = 'X'.
PERFORM f_list_records.
ENDIF.

* End of selection
END-OF-SELECTION.


*---------------------------------------------------------------------*
* FORM f_table_definition *
*---------------------------------------------------------------------*
* --> VALUE(IN_TABLE) *
*---------------------------------------------------------------------*
FORM f_table_definition USING value(in_table).
DATA: l_tname TYPE tabname,
l_state TYPE ddgotstate,
l_dd02v TYPE dd02v.

l_tname = in_table.
CALL FUNCTION 'DDIF_TABL_GET'
EXPORTING
name = l_tname
IMPORTING
gotstate = l_state
dd02v_wa = l_dd02v
TABLES
dd03p_tab = it_dd03p
EXCEPTIONS
illegal_input = 1
OTHERS = 2.
IF l_state NE 'A'.
write_error 'does not exist or is not active' space.
ENDIF.
IF l_dd02v-tabclass NE 'TRANSP' AND
l_dd02v-tabclass NE 'CLUSTER'.
write_error 'is type' l_dd02v-tabclass.
ENDIF.
ENDFORM.


*---------------------------------------------------------------------*
* FORM f_prepare_table *
*---------------------------------------------------------------------*
* --> VALUE(IN_TABLE) *
*---------------------------------------------------------------------*
FORM f_prepare_table USING value(in_table).
DATA: l_tname TYPE tabname,
lt_ftab TYPE lvc_t_fcat.

l_tname = in_table.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
i_structure_name = l_tname
CHANGING
ct_fieldcat = lt_ftab
EXCEPTIONS
OTHERS = 1.
IF sy-subrc NE 0.
WRITE: / 'Error while building field catalog'.
STOP.
ENDIF.

CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
it_fieldcatalog = lt_ftab
IMPORTING
ep_table = it_file.

ASSIGN it_file->* TO <table>.
CREATE DATA is_file LIKE LINE OF <table>.
ASSIGN is_file->* TO <data>.

ENDFORM.


*---------------------------------------------------------------------*
* FORM f_upload_data *
*---------------------------------------------------------------------*
* --> VALUE(IN_FILE) *
*---------------------------------------------------------------------*
FORM f_upload_data USING value(in_file).
DATA: l_file TYPE string,
l_ltext TYPE string.

DATA: l_lengt TYPE i,
l_field TYPE fieldname.

DATA: l_missk TYPE c.

l_file = in_file.
l_lengt = strlen( in_file ).

FORMAT INTENSIFIED ON.
WRITE: / 'Reading file', in_file(l_lengt).
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
filename = l_file
filetype = 'ASC'
TABLES
data_tab = it_rdata
EXCEPTIONS
OTHERS = 1.
IF sy-subrc <> 0.
WRITE: /3 'Error uploading', l_file.
STOP.
ENDIF.

* File not empty
DESCRIBE TABLE it_rdata LINES sy-tmaxl.
IF sy-tmaxl = 0.
WRITE: /3 'File', l_file, 'is empty'.
STOP.
ELSE.
WRITE: '-', sy-tmaxl, 'rows read'.
ENDIF.

* File header on first row
READ TABLE it_rdata INTO is_rdata INDEX 1.
l_ltext = is_rdata.
WHILE l_ltext CS p_separ.
SPLIT l_ltext AT p_separ INTO l_field l_ltext.
APPEND l_field TO it_fields.
ENDWHILE.
IF sy-subrc = 0.
l_field = l_ltext.
APPEND l_field TO it_fields.
ENDIF.

* Check all key fields are present
SKIP.
FORMAT RESET.
FORMAT COLOR COL_HEADING.
WRITE: /3 'Key fields'.
FORMAT RESET.
LOOP AT it_dd03p INTO is_dd03p WHERE NOT keyflag IS initial.
WRITE: /3 is_dd03p-fieldname.
READ TABLE it_fields WITH KEY table_line = is_dd03p-fieldname
TRANSPORTING NO FIELDS.
IF sy-subrc = 0.
FORMAT COLOR COL_POSITIVE.
WRITE: 'ok'.
FORMAT RESET.
ELSEIF is_dd03p-datatype NE 'CLNT'.
FORMAT COLOR COL_NEGATIVE.
WRITE: 'error'.
FORMAT RESET.
l_missk = 'X'.
ENDIF.
ENDLOOP.

* Log other fields
SKIP.
FORMAT COLOR COL_HEADING.
WRITE: /3 'Other fields'.
FORMAT RESET.
LOOP AT it_dd03p INTO is_dd03p WHERE keyflag IS initial.
WRITE: /3 is_dd03p-fieldname.
READ TABLE it_fields WITH KEY table_line = is_dd03p-fieldname
TRANSPORTING NO FIELDS.
IF sy-subrc = 0.
WRITE: 'X'.
ENDIF.
ENDLOOP.

* Missing key field
IF l_missk = 'X'.
SKIP.
WRITE: /3 'Missing key fields - no further processing'.
STOP.
ENDIF.

ENDFORM.


*---------------------------------------------------------------------*
* FORM f_process_data *
*---------------------------------------------------------------------*
FORM f_process_data.
DATA: l_ltext TYPE string,
l_stext TYPE text40,
l_field TYPE fieldname,
l_datat TYPE c.

LOOP AT it_rdata INTO is_rdata FROM 2.
l_ltext = is_rdata.
LOOP AT it_fields INTO l_field.
ASSIGN COMPONENT l_field OF STRUCTURE <data> TO <fs>.
IF sy-subrc = 0.
* Field value comes from file, determine conversion
DESCRIBE FIELD <fs> TYPE l_datat.
CASE l_datat.
WHEN 'N'.
SPLIT l_ltext AT p_separ INTO l_stext l_ltext.
WRITE l_stext TO <fs> RIGHT-JUSTIFIED.
OVERLAY <fs> WITH '0000000000000000'. "max 16
WHEN 'P'.
SPLIT l_ltext AT p_separ INTO l_stext l_ltext.
TRANSLATE l_stext USING ',.'.
<fs> = l_stext.
WHEN 'F'.
SPLIT l_ltext AT p_separ INTO l_stext l_ltext.
TRANSLATE l_stext USING ',.'.
<fs> = l_stext.
WHEN 'D'.
SPLIT l_ltext AT p_separ INTO l_stext l_ltext.
TRANSLATE l_stext USING '/.-.'.
CALL FUNCTION 'CONVERT_DATE_TO_INTERNAL'
EXPORTING
date_external = l_stext
IMPORTING
date_internal = <fs>
EXCEPTIONS
OTHERS = 1.
WHEN 'T'.
CALL FUNCTION 'CONVERT_TIME_INPUT'
EXPORTING
input = l_stext
IMPORTING
output = <fs>
EXCEPTIONS
OTHERS = 1.
WHEN OTHERS.
SPLIT l_ltext AT p_separ INTO <fs> l_ltext.
ENDCASE.
ELSE.
SHIFT l_ltext UP TO p_separ.
SHIFT l_ltext.
ENDIF.
ENDLOOP.
IF NOT <data> IS INITIAL.
LOOP AT it_dd03p INTO is_dd03p WHERE datatype = 'CLNT'.
* This field is mandant
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-mandt.
ENDLOOP.
IF p_create = 'X'.
IF is_dd03p-rollname = 'ERDAT'.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-datum.
ENDIF.
IF is_dd03p-rollname = 'ERZET'.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-uzeit.
ENDIF.
IF is_dd03p-rollname = 'ERNAM'.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-uname.
ENDIF.
ENDIF.
IF is_dd03p-rollname = 'AEDAT'.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-datum.
ENDIF.
IF is_dd03p-rollname = 'AETIM'.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-uzeit.
ENDIF.
IF is_dd03p-rollname = 'AENAM'.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data>
TO <fs>.
<fs> = sy-uname.
ENDIF.
APPEND <data> TO <table>.
ENDIF.
ENDLOOP.
ENDFORM.


*---------------------------------------------------------------------*
* FORM f_modify_table *
*---------------------------------------------------------------------*
FORM f_modify_table.
SKIP.
IF p_save = 'X'.
MODIFY (p_table) FROM TABLE <table>.
ELSEIF p_dele = 'X'.
DELETE (p_table) FROM TABLE <table>.
ELSE.
EXIT.
ENDIF.

IF sy-subrc EQ 0.
FORMAT COLOR COL_POSITIVE.
IF p_save = 'X'.
WRITE: /3 'Modify table OK'.
ELSE.
WRITE: /3 'Delete table OK'.
ENDIF.
FORMAT RESET.
IF p_test IS INITIAL.
COMMIT WORK.
ELSE.
ROLLBACK WORK.
WRITE: '- test only, no update'.
ENDIF.
ELSE.
FORMAT COLOR COL_NEGATIVE.
WRITE: /3 'Error while modifying table'.
FORMAT RESET.
ENDIF.
ENDFORM.


*---------------------------------------------------------------------*
* FORM f_list_records *
*---------------------------------------------------------------------*
FORM f_list_records.
DATA: l_tleng TYPE i,
l_lasti TYPE i,
l_offst TYPE i.

* Output width
l_tleng = 1.
LOOP AT it_dd03p INTO is_dd03p.
l_tleng = l_tleng + is_dd03p-outputlen.
IF l_tleng LT sy-linsz.
l_lasti = sy-tabix.
l_tleng = l_tleng + 1.
ELSE.
l_tleng = l_tleng - is_dd03p-outputlen.
EXIT.
ENDIF.
ENDLOOP.

* Output header
SKIP.
FORMAT COLOR COL_HEADING.
WRITE: /3 'Contents'.
FORMAT RESET.
ULINE AT /3(l_tleng).

* Output records
LOOP AT <table> ASSIGNING <data>.
LOOP AT it_dd03p INTO is_dd03p FROM 1 TO l_lasti.
IF is_dd03p-position = 1.
WRITE: /3 sy-vline.
l_offst = 3.
ENDIF.
ASSIGN COMPONENT is_dd03p-fieldname OF STRUCTURE <data> TO <fs>.
l_offst = l_offst + 1.
IF is_dd03p-decimals LE 2.
WRITE: AT l_offst <fs>.
ELSE.
WRITE: AT l_offst <fs> DECIMALS 3.
ENDIF.
l_offst = l_offst + is_dd03p-outputlen.
WRITE: AT l_offst sy-vline.
ENDLOOP.
ENDLOOP.

* Output end
ULINE AT /3(l_tleng).

ENDFORM.

 

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