ME_PROCESS_REQ_CUST 采购申请(保存前检查)增强

BADI：ME_PROCESS_REQ_CUST

接口：IF_EX_ME_PROCESS_REQ_CUST

需求：创建采购申请时检查每个行项次的采购组是否一致

    method if_ex_me_process_req_cust~check.
    data:lt_items type mmpur_requisition_items,
         ls_items type mmpur_requisition_item.
    data:ls_ekgrp     type        ekgrp,
         ls_item_data type        mereq_item,
         ls_item      type ref to if_purchase_requisition_item.    "获取行项目数据的类

    lt_items = im_header->get_items( ).

***手工pr项次中采购组不一致不能保存 
    loop at lt_items into ls_items.
      ls_item = ls_items-item.
      clear ls_item_data.
      ls_item_data = ls_item->get_data( ).  "获取数据
      if ls_item_data-bnfpo = '00010'.
        ls_ekgrp = ls_item_data-ekgrp.
      else.
        if ls_ekgrp <> ls_item_data-ekgrp.
          message '采购组不一致' type 'E'.
        endif.
      endif.
    endloop.
    
      endmethod.