zoukankan      html  css  js  c++  java
  • SAP CRM Relationship API设计原理

    Unlike settype, relationship does not have a dedicated read function module maintained in its metadata table. Instead, the generic read function module COM_IL_DB_READ is used.

    Below is a simple explanation about each parameter of FM COM_IL_DB_READ, using read on relationship PRDCPN for example.

    IV_RELTYPE

    PRDCPN - relationship name

    IV_ATTR_TYPE

    COMT_IL_PRDCPN_ATTR_TYPE - contains relationship specific business data, in this example, the customer product id is stored in field PRID_VENDOR

    IT_LINK_IDENTS

    sourceguid or destiguid contains product guid. This will be used by the generic read API to select against DB table using OPEN SQL.

    The exporting parameter:

    ET_INTERLINKAGE - relationship header data - generic data

    ET_IL_ATTR

    Relationship specific data, in this example, PRID_VENDOR, stores the detail value.



    Approach1

    If we can enhance COM_IL_DB_READ, we then redirect the read from CRM relationship storage table to S4 relationship storage table.
    Since it is not allowed to enhance SAP_ABA function module, we have to consider CDS view redirect.
    Further research is needed here: compare the structure of both storage table in CRM and S4 and evaluate whether view direct is feasible or not.

    Approach2

    Since we can only make changes on BBPCRM, we have to copy the whole implementation which are in SAP_ABAP listed below into new function & subroutine, make needed changes ( table redirect ) and let FORM UI_GETDETAIL call those new implementations. This approach takes huge effort.

    要获取更多Jerry的原创文章,请关注公众号"汪子熙":

  • 相关阅读:
    react的路由权限控制
    react的路由中的switch和exact的使用
    react中antd的表格自定义展开
    webstorm的git操作使用
    ES6的相关语法
    vue导出文件下载
    vue如何解析xml文件 x2js
    ES6模板字符串
    彻底卸载微软拼音输入法
    systemverilog新增的always_comb,always_ff,和always_latch语句
  • 原文地址:https://www.cnblogs.com/sap-jerry/p/12242795.html
Copyright © 2011-2022 走看看