需要修改的文件比较多，大家先看看页末的效果再决定是否修改
主要修改功能：
1.楼中楼回复的排序，默认为按时间降序，现在改为升序
2.重写帖子的楼层数
3.修改楼中楼回复帖子页面显示
4.解决修改后出现的分页问题
效果图在最下方
楼中楼回复的排序，默认为按时间降序，现在改为升序


src/service/forum/dao/PwPostsReplyDao.php  修改


$sql = $this->_bindSql('SELECT b.* FROM %s a LEFT JOIN %s b ON a.pid=b.pid WHERE a.rpid=? AND b.disabled=0 ORDER BY a.pid DESC %s', $this->getTable(), $this->getTable($this->_mergeTable), $this->sqlLimit($limit, $offset));


改成：
$sql = $this->_bindSql('SELECT b.* FROM %s a LEFT JOIN %s b ON a.pid=b.pid WHERE a.rpid=? AND b.disabled=0 ORDER BY a.pid ASC  %s', $this->getTable(), $this->getTable($this->_mergeTable), $this->sqlLimit($limit, $offset));




重写帖子的楼层数


src/service/forum/PwThread.php
countPostByTidUnderPid($tid, $pid)统计帖子(A)中的ID小于回复(B)的回复个数


src/service/dao/PwPostsDao.php
countPostByTidUnderPid($tid, $pid) 修改


$sql = $this->_bindTable('SELECT COUNT(*) FROM %s WHERE tid=? AND pid<? AND disabled=0');


改成:
$sql = $this->_bindTable('SELECT COUNT(*) FROM %s WHERE tid=? AND pid<? AND disabled=0 AND rpid=0');


修改帖子页面显示
src/service/forum/PwThread.php
function getPostByTid($tid, $limit = 20, $offset = 0, $asc = true)获取一个帖子的回复列表


src/service/dao/PwPostsDao.php




public function countPostByTidUnderPid($tid, $pid) {
 $sql = $this->_bindTable('SELECT COUNT(*) FROM %s WHERE tid=? AND pid<? AND disabled=0 AND rpid=0');
 $smt = $this->getConnection()->createStatement($sql);
 return $smt->getValue(array($tid, $pid));
 }


$sql = $this->_bindSql('SELECT * FROM %s WHERE tid=? AND disabled=0 ORDER BY created_time %s %s', $this->getTable(), $orderby , $this->sqlLimit($limit, $offset));
改成：
$sql = $this->_bindSql('SELECT * FROM %s WHERE tid=? AND disabled=0 AND rpid=0 ORDER BY created_time %s %s', $this->getTable(), $orderby , $this->sqlLimit($limit, $offset));




src/service/dao/PwPostsDao.php
统计用户(A)在帖子(B)中的回复数
public function countPostByTidAndUid($tid, $uid) {
 $sql = $this->_bindTable('SELECT COUNT(*) FROM %s WHERE tid=? AND created_userid=? AND disabled=0  AND rpid=0');
 $smt = $this->getConnection()->createStatement($sql);
 return $smt->getValue(array($tid, $uid));
 }




 public function getPostByTidAndUid($tid, $uid, $limit, $offset, $asc) {
 $orderby = $asc ? 'ASC' : 'DESC';
 $sql = $this->_bindSql('SELECT * FROM %s WHERE tid=? AND disabled=0 AND rpid=0 AND created_userid=? ORDER BY created_time %s %s', $this->getTable(), $orderby , $this->sqlLimit($limit, $offset));
 $smt = $this->getConnection()->createStatement($sql);
 return $smt->queryAll(array($tid, $uid), 'pid');
 }








$this->thread->info['replies'] + $this->thread->info['reply_topped'] + 1;
replies得减去楼中楼的回复数、


效果：
楼中楼回复

图片：效果.jpg

帖子列表，没有了楼中楼回复：

图片：效果2.jpg

样式大家可以去适应自己的版本，我下载的官方直接改的，所以是官方版，要改成百度贴吧那种，只需要在风格上改改就OK了。