public static bool CompanyTopicReply_Redundent_Check(this Req_Oc_Comment comment) => Util.PostFilter($"CompanyTopicCache_{comment.oc_code}_{comment.u_id}", comment.reply_content);
public static Maybe <Req_Oc_Comment> User_Valid_Check(this Req_Oc_Comment topic) { var u_id = topic.u_id.ToInt(); return(u_id > 0 ? topic : None <Req_Oc_Comment> .Default); }