SAP MDG · DATA MODEL UI

How do I create an SAP MDG Change Request UIBB feeder class for an additional Business Area field?

Q: How do I create an SAP MDG Change Request UIBB feeder class for an additional Business Area field?

Use `ZCL_USMD_CR_GUIBB_REQ_BUS_AREA` as the feeder class, inherit from `CL_GUIBB_BOL_FORM`, and redefine `IF_FPM_GUIBB_FORM~GET_DATA`, `IF_FPM_GUIBB_FORM~GET_DEFINITION`, and `GET_ATTR_VALUE_SET`. Populate the value help from `TGSB` and `TGSBT`, then enhance GenIL `CR` with `ZCR_REQ_BUSINESS_AREA` and `ZCR_ReqBusAreaRel`.

Create feeder class `ZCL_USMD_CR_GUIBB_REQ_BUS_AREA` by inheriting from `CL_GUIBB_BOL_FORM`, redefine `IF_FPM_GUIBB_FORM~GET_DATA`, `IF_FPM_GUIBB_FORM~GET_DEFINITION`, and `GET_ATTR_VALUE_SET`, then supply Business Area values from `TGSB` and language-dependent text from `TGSBT`. Enhance GenIL component `CR` with dependent object `ZCR_REQ_BUSINESS_AREA` and relation `ZCR_ReqBusAreaRel`, and bind the feeder through the Change Request UIBB configuration.

SOLUTION SUMMARY · SHORT ANSWER

Create `ZCL_USMD_CR_GUIBB_REQ_BUS_AREA` as a subclass of `CL_GUIBB_BOL_FORM`, let the standard BOL form processing provide the data, and use `GET_DEFINITION` to wire the `BUS_AREA` field to the feeder’s OVS/value-help logic. In `GET_ATTR_VALUE_SET`, read Business Area keys from `TGSB` and their language-dependent descriptions from `TGSBT`, then return them so the UI can show `BUS_AREA` as a dropdown/F4 help. On the GenIL side, enhance component `CR` by adding dependent object `ZCR_REQ_BUSINESS_AREA` and relation `ZCR_ReqBusAreaRel` so the field can be sourced from the Change Request root context.

Process flow

Create feeder class `ZCL_USMD_CR_GUIBB_REQ_BUS_AREA`.
Inherit from `CL_GUIBB_BOL_FORM`.
Redefine `IF_FPM_GUIBB_FORM~GET_DATA` and keep superclass processing.
Redefine `IF_FPM_GUIBB_FORM~GET_DEFINITION` and assign `BUS_AREA` to the feeder value help/OVS.
Redefine `GET_ATTR_VALUE_SET` to build the Business Area value list.
Read Business Area keys from `TGSB` and descriptions from `TGSBT`.
Enhance GenIL component `CR` in `GENIL_MODEL_BROWSER`.
Create enhancement `ZMDG_CR_ADDITIONAL_FIELDS` and add dependent object `ZCR_REQ_BUSINESS_AREA`.','Create relation `ZCR_ReqBusAreaRel` from `CR_Root` to the dependent object.','Bind the feeder class in the UIBB configuration and test the UI

CONFIGURATIONSource-backed paths

GENIL_MODEL_BROWSER

Component `CR`

Inspect and enhance the Change Request GenIL component

GENIL_MODEL_BROWSER

`ZMDG_CR_ADDITIONAL_FIELDS`

Enhancement container for custom CR dependent objects

Referenced tables

Object	Purpose
`TGSB`	Business Area values (`GSBER`)
`TGSBT`	Language-dependent Business Area texts

ILLUSTRATIVE ABAP SAMPLE

Source ABAP example

Exact relevant implementation excerpt from the knowledge document.

1*---------------------------------------------------------------------*
2* TITLE: Create or Redefine a UI Feeder Class
3* SOURCE: SAP How-To Guide
4*---------------------------------------------------------------------*
5* TAGS:
6* SAP MDG
7* SAP Master Data Governance
8* UI Feeder Class
9* FPM
10* Floorplan Manager
11* Web Dynpro ABAP
12* UIBB
13* Form UIBB
14* CL_BS_BP_GUIBB_FORM
15* CL_BS_BP_GUIBB_LIST
16* CL_BS_CU_GUIBB_GENERAL_DATA
17* ZCL_BS_CU_GUIBB_GENERAL_DATA
18* IF_FPM_GUIBB_FORM~GET_DEFINITION
19* OVS_HANDLE_PHASE_2
20* GET_JOIN_ENTITY_DATA
21* GET_ENTITY_DATA
22* OVS Search Help
23* KDKG1
24* KDKG1__TEXT
25* TVKGG
26* TVKGGT
27* genIL
28* BUPA
29* BUPA_CUSP
30* CL_BS_CUSTOMER_GENIL
31* ZCL_BS_GENIL_CUSTOM
32* GENIL_MODEL_BROWSER
33* USMD_TXT_FLD_EXC
34* USMD_TXT_FLD_MAP_DELETE
35*---------------------------------------------------------------------*
36
37*---------------------------------------------------------------------*
38* CLASS: ZCL_BS_CU_GUIBB_GENERAL_DATA
39* METHOD: IF_FPM_GUIBB_FORM~GET_DEFINITION
40*---------------------------------------------------------------------*
41METHOD if_fpm_guibb_form~get_definition.
42
43*! Get the definition of the feeder class / UIBB.
44
45  "inherit first
46  super->if_fpm_guibb_form~get_definition(
47    IMPORTING
48      eo_field_catalog         = eo_field_catalog
49      et_field_description     = et_field_description
50      et_action_definition     = et_action_definition
51      et_special_groups        = et_special_groups
52      et_dnd_definition        = et_dnd_definition
53      es_options               = es_options
54      es_message               = es_message
55      ev_additional_error_info = ev_additional_error_info ).
56
57  "set the OVS search help for field Condition Group 1 (KDKG1) to the
58  "current class
59  READ TABLE et_field_description ASSIGNING FIELD-SYMBOL(<description>)
60    WITH KEY name = 'KDKG1'.
61
62  IF sy-subrc = 0.
63    <description>-ovs_name = me->class_name.
64  ENDIF.
65
66ENDMETHOD.
67
68*---------------------------------------------------------------------*
69* CLASS: ZCL_BS_CU_GUIBB_GENERAL_DATA
70* METHOD: OVS_HANDLE_PHASE_2
71*---------------------------------------------------------------------*
72METHOD ovs_handle_phase_2.
73
74  CASE iv_field_name.
75    WHEN 'KDKG1'.
76      "Implement the OVS search result for the Condition Group 1.
77      "The corresponding customizing tables are TVKGG & TVKGGT.
78      TYPES:
79        BEGIN OF ty_s_ovs_condition,
80          kdkg1       TYPE kdkgr,
81          kdkg1__text TYPE vtext,
82        END OF ty_s_ovs_condition,
83        ty_t_ovs_condition TYPE STANDARD TABLE OF ty_s_ovs_condition.
84
85      CREATE DATA er_output TYPE ty_t_ovs_condition.
86      FIELD-SYMBOLS <output> TYPE ty_t_ovs_condition.
87      ASSIGN er_output->* TO <output>.
88
89      SELECT * FROM tvkgg INTO TABLE @DATA(conditions).
90
91      IF conditions IS NOT INITIAL.
92        SELECT * FROM tvkggt INTO TABLE @DATA(texts)
93          FOR ALL ENTRIES IN @conditions
94          WHERE kdkgr = @conditions-kdkgr
95            AND spras = @sy-langu.
96      ENDIF.
97
98      LOOP AT conditions ASSIGNING FIELD-SYMBOL(<condition>).
99        APPEND INITIAL LINE TO <output> ASSIGNING FIELD-SYMBOL(<line>).
100        <line>-kdkg1 = <condition>-kdkgr.
101        <line>-kdkg1__text = <condition>-kdkgr.
102
103        READ TABLE texts ASSIGNING FIELD-SYMBOL(<text>)
104          WITH KEY kdkgr = <condition>-kdkgr
105                   spras = sy-langu.
106
107        CHECK sy-subrc = 0
108          AND <text>-vtext IS NOT INITIAL.
109
110        <line>-kdkg1__text = <text>-vtext.
111      ENDLOOP.
112
113    WHEN OTHERS.
114      "The method is called for each field using an OVS. To support
115      "SAP owned fields with their standard logic, the OTHERS simply
116      "calls the parent class.
117      super->ovs_handle_phase_2(
118        EXPORTING
119          iv_field_name      = iv_field_name
120          ir_query_parameter = ir_query_parameter

The remaining configuration, implementation details, and testing guidance continue from this answer more…

How do I create an SAP MDG Change Request UIBB feeder class for an additional Business Area field?

Process flow

Component `CR`

`ZMDG_CR_ADDITIONAL_FIELDS`

Referenced tables

Source ABAP example

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