public function ag_cms_credits($type, $cate_id, $id, $status)
 {
     switch ($type) {
         case 'top':
             if ($status) {
                 //加精置顶
                 $tzinfo = M('Document')->where(array('id' => $id))->field('uid,usertype')->find();
                 if ($tzinfo['usertype'] == 'user') {
                     Credits::ag_cms_topics_settop($tzinfo['uid'], $cate_id, '管理员置顶一条内容,ID:' . $id);
                 }
             }
             break;
         case 'dig':
             if ($status) {
                 //加精置顶
                 $tzinfo = M('Document')->where(array('id' => $id))->field('uid,usertype')->find();
                 if ($tzinfo['usertype'] == 'user') {
                     Credits::ag_cms_topics_settop($tzinfo['uid'], $cate_id, '管理员加精一条内容,ID:' . $id);
                 }
             }
             break;
     }
     return true;
 }