Odata 的Association实现 get update delete URL

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odata GET,UPDATA,DELETE - Park_SAP - 博客园

1：创建表：YEKKO,YEKPO

2: 导入，YEKKO,YEKPO生成EKKO,EKPO entity type, (Import->DDIC Structure)

3:按提示生成association,如下，

4：执行Runtime Artifactsz生成相关类，

5：实施刚生成的类的方法，

分别redefine ekkoset: getentity, getentityset

Ekposet:getentityset.

  METHOD ekkoset_get_entity.
    DATA: ls_key  TYPE /iwbep/s_mgw_tech_pair,
          lt_keys TYPE /iwbep/t_mgw_tech_pairs.
    lt_keys = io_tech_request_context->get_keys( ).      "注意大小写
    READ TABLE lt_keys WITH KEY name = 'EBELN' INTO ls_key.
    CHECK sy-subrc = 0.
    SELECT SINGLE *
      FROM yekko
      INTO CORRESPONDING FIELDS OF er_entity
     WHERE     ebeln = ls_key-value.

  ENDMETHOD.

  METHOD ekkoset_get_entityset.
    DATA:lv_ebeln TYPE yekko-ebeln.
    DATA:lt_ekko TYPE TABLE OF yekko.
    DATA:ls_filter_pernr TYPE /iwbep/s_mgw_select_option,
         ls_option       TYPE /iwbep/s_cod_select_option,
         ls_ee_option    TYPE bapihrselemployee.

    LOOP AT it_filter_select_options INTO ls_filter_pernr WHERE  property = 'Ebeln'.
      LOOP AT ls_filter_pernr-select_options INTO ls_option.
        CLEAR ls_ee_option.
        lv_ebeln     = ls_option-low.
      ENDLOOP.
    ENDLOOP.

    SELECT *
      FROM yekko
      UP TO 10 ROWS
      INTO TABLE lt_ekko
     WHERE ebeln = lv_ebeln.
    MOVE-CORRESPONDING lt_ekko TO et_entityset.

  ENDMETHOD.

  METHOD ekposet_get_entityset.
    DATA:  ls_key       TYPE /iwbep/s_mgw_name_value_pair.
    DATA:lv_ebeln TYPE ekko-ebeln.

READ TABLE it_key_tab WITH KEY name = 'Ebeln' INTO ls_key.

“it_key_tab KEY的信息是entity type的字段定义，区分大小写

“lt_keys = io_tech_request_context->get_keys( )

” LT_KEYS是SAP表的字段，为大写
    CHECK sy-subrc = 0.
    lv_ebeln = ls_key-value.
    SELECT *
      FROM yekpo
      INTO CORRESPONDING FIELDS OF TABLE et_entityset
     WHERE ebeln = lv_ebeln.
  ENDMETHOD.