UI上将BP附件放到BP结果中

1，取附件内容放到新增的字段里

  METHOD get_attachment.

    DATA: current TYPE REF TO if_bol_bo_property_access.
    DATA: dref    TYPE REF TO data.
    DATA:gv_guid            TYPE crmt_object_guid,
         ls_business_object TYPE sibflporb,
         lt_phioloios       TYPE skwf_lpios,
         ls_phioloios       LIKE LINE OF lt_phioloios,
         lt_ios_prop_result TYPE crm_kw_propst,
         ls_ios_prop_result LIKE LINE OF lt_ios_prop_result,
         lt_prop            TYPE sdokproptls,
         ls_prop            TYPE sdokproptl.

    FIELD-SYMBOLS:
      <nval> TYPE any,
      <oval> TYPE any.

*   get current entity
    IF iterator IS BOUND.
      current = iterator->get_current( ).
    ELSE.
      current = collection_wrapper->get_current( ).
    ENDIF.

    current->get_property_as_value(
      EXPORTING
        iv_attr_name = 'BP_GUID'
       IMPORTING
         ev_result    = gv_guid ).

    CHECK gv_guid IS NOT INITIAL.

    "取出BP对应的附件信息
    ls_business_object-instid = gv_guid.
    ls_business_object-typeid = 'BUS1006'.
    ls_business_object-catid = 'BO'.
    CALL METHOD cl_crm_documents=>get_info
      EXPORTING
        business_object       = ls_business_object
      IMPORTING
        phioloios             = lt_phioloios
        ios_properties_result = lt_ios_prop_result.

    READ TABLE lt_phioloios INTO ls_phioloios INDEX 1.
    IF sy-subrc = 0.
      READ TABLE lt_ios_prop_result INTO ls_ios_prop_result WITH KEY objtype = ls_phioloios-objtypelo
                                                                     class   = ls_phioloios-classlo
                                                                     objid   = ls_phioloios-objidlo.
      IF sy-subrc = 0.
        READ TABLE ls_ios_prop_result-properties INTO ls_prop WITH KEY name = 'KW_RELATIVE_URL'.
        IF sy-subrc = 0.
          value = ls_prop-value.
        ENDIF.
      ENDIF.
    ENDIF.

  ENDMETHOD.

2，设置字段类型

METHOD get_p_attachment.

  CASE iv_property.
    WHEN if_bsp_wd_model_setter_getter=>fp_fieldtype.
      rv_value = cl_bsp_dlc_view_descriptor=>field_type_event_link.

    WHEN if_bsp_wd_model_setter_getter=>fp_onclick.
      rv_value = 'DISPLAY_DOC'.
      "...
  ENDCASE.

3，设置点击事件

  METHOD eh_ondisplay_doc.
* Added by wizard: Handler for event 'DISPLAY_DOC'
    DATA: lv_index       TYPE int4,
          lr_entity_ext  TYPE REF TO if_bol_bo_property_access,"if_bsp_wd_ext_property_access,
          lr_entity      TYPE REF TO cl_crm_bol_entity,
          lr_coco        TYPE REF TO cl_gs_cm_bspwdcomponent,
          lr_bsp_runtime TYPE REF TO cl_bsp_runtime,
          ls_attributes  TYPE crmt_cmic_doc_attr,
          lr_data        TYPE REF TO data.
    FIELD-SYMBOLS: <fs_key> TYPE string.
    DATA: current TYPE REF TO if_bol_bo_property_access.
    DATA: dref    TYPE REF TO data.
    DATA:gv_guid            TYPE crmt_object_guid,
         ls_business_object TYPE sibflporb,
         lt_phioloios       TYPE skwf_lpios,
         ls_loio            TYPE skwf_io,
         lv_url             TYPE saeuri,
         ls_phioloios       LIKE LINE OF lt_phioloios,
         lt_ios_prop_result TYPE crm_kw_propst,
         ls_ios_prop_result LIKE LINE OF lt_ios_prop_result,
         lt_prop            TYPE sdokproptls,
         ls_prop            TYPE sdokproptl.

* get index of the table
    cl_thtmlb_util=>get_event_info( EXPORTING iv_event = htmlb_event_ex
                                    IMPORTING   ev_index = lv_index ).
* get entity from mixed note
    lr_entity_ext ?= me->typed_context->result->collection_wrapper->find( iv_index = lv_index ).

    CHECK lr_entity_ext IS BOUND.
    lr_entity_ext->get_property_as_value(
  EXPORTING
    iv_attr_name = 'BP_GUID'
   IMPORTING
     ev_result    = gv_guid ).

    CHECK gv_guid IS NOT INITIAL.

    "取出BP对应的附件信息
    ls_business_object-instid = gv_guid.
    ls_business_object-typeid = 'BUS1006'.
    ls_business_object-catid = 'BO'.
    CALL METHOD cl_crm_documents=>get_info
      EXPORTING
        business_object       = ls_business_object
      IMPORTING
        phioloios             = lt_phioloios
        ios_properties_result = lt_ios_prop_result.

    READ TABLE lt_phioloios INTO ls_phioloios INDEX 1.
    IF sy-subrc = 0.
      READ TABLE lt_ios_prop_result INTO ls_ios_prop_result WITH KEY objtype = ls_phioloios-objtypelo
                                                                     class   = ls_phioloios-classlo
                                                                     objid   = ls_phioloios-objidlo.
      IF sy-subrc = 0.
        READ TABLE ls_ios_prop_result-properties INTO ls_prop WITH KEY name = 'KW_RELATIVE_URL'.
        IF sy-subrc = 0.
        ENDIF.
      ENDIF.
      ls_loio-objtype = ls_phioloios-objtypelo.
      ls_loio-class   = ls_phioloios-classlo.
      ls_loio-objid   = ls_phioloios-objidlo.

      CALL METHOD cl_crm_documents=>get_with_url
        EXPORTING
          loio     = ls_loio
          url_type = '2'
        IMPORTING
          url      = lv_url
        EXCEPTIONS
          no_io    = 1
          OTHERS   = 2.

      CHECK lv_url IS NOT INITIAL.

      ls_attributes-url_to_display = lv_url.

      CONCATENATE gv_doc_display_js 'thtmlbSuppressOnLoadKeyboardFocus(); window.open("' ls_attributes-url_to_display '", ' sy-timlo ')' INTO gv_doc_display_js.
    ENDIF.

  ENDMETHOD.

效果：