More about Update Operations in OData -Part 8

We have already discussed the Query, Read and create operations in our previous parts. Let’s explore Update Operations in OData service, as the name suggests update is to modify the entity which is already present in the system.

In our previous part, we have already created a sales order by using the post method. Let’s update the same.

Update_entity method will have the following parameters

Let’s discuss the payload and URI part before we implement the actual logic inside the update_entity method.

We need to pass the key field in the URI and the payload in the HTTP request for the update entity. As we know the payload can be prepared either from the GET request or you can create manually. (Already covered in Part 7)

  METHOD orderrheaderset_update_entity.
    "Data declaration
    DATA:ls_payload    TYPE zcl_zxyz_sample_odata_mpc=>ts_orderrheader,
         ls_key_value  LIKE er_entity,
         lt_return     TYPE TABLE OF bapiret2,
         ls_header_in  TYPE bapisdh1,
         ls_header_inx TYPE bapisdh1x.

    "Get the payload information
    io_data_provider->read_entry_data(
      IMPORTING
        es_data = ls_payload ).

    "Get the key value i.e the order number
    io_tech_request_context->get_converted_keys(
      IMPORTING
        es_key_values = ls_key_value ).

    "Call the BAPI to change the order
    ls_header_in-sales_off = ls_payload-vkbur.
    ls_header_inx-updateflag = 'U'.
    ls_header_inx-sales_off = abap_true.

    CALL FUNCTION 'BAPI_SALESORDER_CHANGE'
      EXPORTING
        salesdocument    = ls_key_value-vbeln
        order_header_in  = ls_header_in
        order_header_inx = ls_header_inx
      TABLES
        return           = lt_return.
    IF NOT line_exists( lt_return[ type = 'E' ] ). "For success
      CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'.
    ENDIF.
    "Note: Error Handling part will be covered in the upcoming part

  ENDMETHOD.

If you notice here we have not passed any response (er_entity exporting parameter) unlikely to create_entity method. It is not necessary to pass a response in case of update operation.

Let’s check out the result

Note: It is not mandatory that you need to give all the attributes in the payload while performing PUT operation.

You can give even a single attribute in the payload. Like below

Are you curious to know about the Merge and Patch method in HTTP. Stay tuned for the next part 😉

Previous Part: Create(Create_entity) Method in OData SAP-Part 7-ABAP Skill

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Update entity details: https://help.sap.com/doc/d9c75eebcfa840c8a4aa4b0e6a8136de/3.0.14/en-US/7c04ddd1700610149b65d10d9609d8b0.html