def to_edit(self, postid):
        '''
        Try to edit the Post.
        '''
        if self.userinfo.role[0] > '0':
            pass
        else:
            return False
        kwd = {}
        self.render('man_info/wiki_man_edit.html',
                    userinfo=self.userinfo,
                    postinfo=MWiki.get_by_uid(postid),
                    kwd=kwd)
Try to edit the Post.