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Example of ABAP DPC_EXT code for mapping bapi warning to UI5 field without an Exception
METHOD myentityset_update_entity.
io_data_provider->read_entry_data( IMPORTING es_data = er_entity ).
*--- get the context path from the request uri
DATA(lt_headers) = /iwbep/if_mgw_conv_srv_runtime~get_dp_facade( )->get_request_header( ).
DATA(lv_request_uri) = lt_headers[ name = '~request_uri' ]-value.
DATA(lv_context_path) = match( val = lv_request_uri regex = `/([^\/]+)\/?$` ).
DATA(lv_message_target) = lv_context_path && |/Field1|. "/MyEntity('Key')/Field1
DATA lt_msg_types TYPE TABLE OF char1.
*--- determine which messages to show
IF er_entity-show_warning = abap_true.
APPEND /iwbep/if_message_container=>gcs_message_type-warning TO lt_msg_types.
ENDIF.
IF er_entity-show_info EQ abap_true.
APPEND /iwbep/if_message_container=>gcs_message_type-info TO lt_msg_types.
ENDIF.
IF er_entity-show_success EQ abap_true.
APPEND /iwbep/if_message_container=>gcs_message_type-success TO lt_msg_types.
ENDIF.
IF er_entity-show_error EQ abap_true.
APPEND /iwbep/if_message_container=>gcs_message_type-error TO lt_msg_types.
ENDIF.
DATA lt_return TYPE STANDARD TABLE OF bapiret2.
LOOP AT lt_msg_types ASSIGNING FIELD-SYMBOL(<fs_msg_type>).
" create bapi message
APPEND INITIAL LINE TO lt_return ASSIGNING FIELD-SYMBOL(<fs_return>).
MESSAGE ID '00' TYPE <fs_msg_type> NUMBER 001
INTO <fs_return>-message
WITH |message { sy-tabix } type { <fs_msg_type> } value { er_entity-field1 }|.
CALL FUNCTION 'BALW_BAPIRETURN_GET2'
EXPORTING
type = sy-msgty
cl = sy-msgid
number = sy-msgno
par1 = sy-msgv1
IMPORTING
return = <fs_return>.
*--- only link Errors and Warning to the target field
<fs_return>-field = COND #( WHEN <fs_msg_type> = /iwbep/if_message_container=>gcs_message_type-warning THEN lv_message_target
WHEN <fs_msg_type> = /iwbep/if_message_container=>gcs_message_type-error THEN lv_message_target
ELSE || ).
ENDLOOP.
LOOP AT lt_return ASSIGNING <fs_return>.
" add message from bapi structure
mo_context->get_message_container( )->add_message_from_bapi(
EXPORTING is_bapi_message = <fs_return>
iv_entity_type = iv_entity_set_name
it_key_tab = VALUE /iwbep/t_mgw_name_value_pair( ( name = 'KEY1' value = er_entity-key1 ) )
iv_add_to_response_header = boolc( er_entity-throw_exception = abap_false )
iv_message_target = CONV string( <fs_return>-field ) ).
ENDLOOP.
IF er_entity-throw_exception = abap_true.
RAISE EXCEPTION TYPE /iwbep/cx_mgw_busi_exception
EXPORTING
message_container = mo_context->get_message_container( ).
ENDIF.
MODIFY zodata_warning FROM er_entity.
ENDMETHOD.
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