模拟discuz发帖的类实现

一直想弄个discuz的数据采集程序，这2天研究了下discuz发帖涉及的几个数据库表，这里分享一下自己的处理方法。

discuz发表主题设计的几个表：（这里列出了主要的几个相关的表）

1、主题表 pre_forum_thread：这个表一个主要数据就是 tid 主题ID

2、post 分表协调表 pre_forum_post_tableid：这里需要获取一个自增的 pid

3、帖子表 pre_forum_post ：记录主题pid、fid、tid、title、content等主要信息

4、版块表 pre_forum_forum：这里主要更新版块的主题、帖子数量

5、帖子主题审核数据表 pre_forum_thread_moderate：这个可以根据自己状况决定，并不是必须的

6、用户统计表 pre_common_member_count：主要是更新用户的主题数量

自己处理发帖主要涉及到了上面6个数据库表，其中第5个不是必须的。想了解discuz 数据库相关信息可以查看：http://faq.comsenz.com/library/database/x25/x25_index.htm

大致流程是这样的：

第一步：向 主题表 pre_forum_thread 中插入版块ID、用户ID、用户名、帖子标题、发帖时间等信息。

第二步：获取第一步插入表 pre_forum_thread 的数据ID，作为主题ID,即 tid

第三步：向 post 分表协调表 pre_forum_post_tableid 插入一条数据，这张表中只有一个自增字段 pid

第四步：获取 第三步 插入表 pre_forum_post_tableid 的数据ID，作为 pid

第五部：向帖子表 pre_forum_post 中插入帖子相关信息，这里需要注意的是： pid为第四部的pid值，tid为第二步的tid值

第六部：更新版块 pre_forum_forum 相关主题、帖子数量信息

第七步：更新用户 pre_common_member_count 帖子数量信息

discuz发帖过程主要就是以上7个步骤，通过这几个步骤就可以完成对实现discuz的发帖流程，其中设计到一些积分等其他信息的可以自己加上。

<?php
date_default_timezone_set('PRC');
include 'db.class.php';

class post
{
	private $host = 'localhost';
	private $username = 'root';
	private $password = '123456';
	private $database_name = 'ultrax';
	private $_db = null;

	private $fid = null;
	private $title = null;
	private $content = null;
	private $author = null;
	private $author_id = null;
	private $current_time = null;
	private $displayorder = null; //0:正常，-2:待审核

	public function __construct($fid, $title, $content, $author, $author_id, $displayorder = -2)
	{
		$this->_db = db::get_instance($this->host, $this->username, $this->password, $this->database_name);

		$this->fid          = $fid;
		$this->title        = $title;
		$this->content      = $content;
		$this->author       = $author;
		$this->author_id    = $author_id;
		$this->current_time = time();
		$this->displayorder = $displayorder;
	}

	public function post_posts()
	{
		$tid = $this->do_pre_forum_thread();

		if(!$tid)
		{
			return '更新表 pre_forum_thread 失败<br />';
		}

		$pid = $this->do_pre_forum_post_tableid();

		if(!$this->do_pre_forum_post($pid, $tid))
		{
			return '更新表 pre_forum_post 失败<br />';
		}

		if(!$this->do_pre_forum_forum())
		{
			return '更新表 pre_forum_forum 失败<br />';
		}

		if($this->displayorder == -2)
		{
			if(!($this->do_pre_forum_thread_moderate($tid)))
			{
				return '更新表 pre_forum_thread_moderate 失败<br />';
			}
		}

		return ($this->do_pre_common_member_count()) ? '发帖成功<br />' : '更新表 pre_pre_common_member_count 失败<br />';
	}

	private function do_pre_forum_thread()
	{
		$data                 = array();
		$data['fid']          = $this->fid;
		$data['author']       = $this->author;
		$data['authorid']     = $this->author_id;
		$data['subject']      = $this->title;
		$data['dateline']     = $this->current_time;
		$data['lastpost']     = $this->current_time;
		$data['lastposter']   = $this->author;
		$data['displayorder'] = $this->displayorder;

		$result = $this->_db->insert($data, 'pre_forum_thread');

		if($result == 1)
		{
			$tid = $this->get_last_id();
		}

		return $tid;
	}

	private function do_pre_forum_post_tableid()
	{
		$sql    = "INSERT INTO `pre_forum_post_tableid`(`pid`) VALUES(NULL)";
		$result = $this->_db->query($sql);
		if($result == 1)
		{
			$pid = $this->get_last_id();
		}

		return $pid;
	}

	private function do_pre_forum_post($pid, $tid)
	{
		$data             = array();
		$data['pid']      = $pid;
		$data['fid']      = $this->fid;
		$data['tid']      = $tid;
		$data['first']    = 1;
		$data['author']   = $this->author;
		$data['authorid'] = $this->author_id;
		$data['subject']  = $this->title;
		$data['dateline'] = $this->current_time;
		$data['message']  = $this->content;

		$result = $this->_db->insert($data, 'pre_forum_post');

		return ($result == 1) ? true : false;
	}

	private function do_pre_forum_forum()
	{
		$sql = "UPDATE `pre_forum_forum` SET `threads`=threads+1,`posts`=posts+1,`todayposts`=todayposts+1 WHERE `fid`={$this->fid}";

		$result = $this->_db->query($sql);

		return ($result == 1) ? true : false;
	}

	private function do_pre_forum_thread_moderate($tid)
	{
		$data             = array();
		$data['tid']      = $tid;
		$data['status']   = 0;
		$data['dateline'] = $this->current_time;

		$result = $this->_db->insert($data, 'pre_forum_thread_moderate');

		return ($result == 1) ? true : false;
	}

	private function do_pre_common_member_count()
	{
		$sql = "UPDATE `pre_common_member_count` SET `threads`=threads+1 WHERE `uid`={$this->author_id}";

		$result = $this->_db->query($sql);

		return ($result == 1) ? true : false;
	}

	private function get_last_id()
	{
		$sql    = "SELECT LAST_INSERT_ID()";
		$result = mysql_query($sql);

		while($row = mysql_fetch_assoc($result))
		{

			$id = $row['LAST_INSERT_ID()'];
		}

		return $id;
	}
}

转自：http://blog.csdn.net/laiqun_ai/article/details/49586917