Created by Jerry Wang, last modified on Apr 30, 2014
每次成功通过action framework往指定的邮箱发送了包含smart form生成的PDF作为附件的邮件之后，都会通过update module往table PPFSFMLRU插入一条entry:
GUID: 唯一标识一次mail sending process的guid，等于table PPFTTRGG的column MEDIUM_OID.
PARTNER_OID: 根据partner_oid到table PPFTPARTNR能找到唯一一条记录，里面包含Partner ID 400646:
TRIGGER_OIS: 等于table PPFTTRIGG的GUID
SMARTFORM: smart form 的technical name
PROCCLS: smart form render的handler class
entry插入的逻辑可以通过打开update debugging来调试:
