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File: xoopstopic.php
<?php
// $Id: xoopstopic.php 1394 2008-03-26 10:39:14Z phppp $
//  ------------------------------------------------------------------------ //
//                XOOPS - PHP Content Management System                      //
//                    Copyright (c) 2000 XOOPS.org                           //
//                       <http://www.xoops.org/>                             //
//  ------------------------------------------------------------------------ //
//  This program is free software; you can redistribute it and/or modify     //
//  it under the terms of the GNU General Public License as published by     //
//  the Free Software Foundation; either version 2 of the License, or        //
//  (at your option) any later version.                                      //
//                                                                           //
//  You may not change or alter any portion of this comment or credits       //
//  of supporting developers from this source code or any supporting         //
//  source code which is considered copyrighted (c) material of the          //
//  original comment or credit authors.                                      //
//                                                                           //
//  This program is distributed in the hope that it will be useful,          //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of           //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            //
//  GNU General Public License for more details.                             //
//                                                                           //
//  You should have received a copy of the GNU General Public License        //
//  along with this program; if not, write to the Free Software              //
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA //
//  ------------------------------------------------------------------------ //
// Author: Kazumi Ono (AKA onokazu)                                          //
// URL: http://www.myweb.ne.jp/, http://www.xoops.org/, http://jp.xoops.org/ //
// Project: The XOOPS Project                                                //
// ------------------------------------------------------------------------- //
if (!defined('XOOPS_ROOT_PATH')) {
	exit();
}
include_once XOOPS_ROOT_PATH."/class/xoopstree.php";

class XoopsTopic
{
	var $table;
	var $topic_id;
	var $topic_pid;
	var $topic_title;
	var $topic_imgurl;
	var $prefix; // only used in topic tree
	var $use_permission=false;
	var $mid; // module id used for setting permission

	function XoopsTopic($table, $topicid=0)
	{
		$this->db =& Database::getInstance();
		$this->table = $table;
		if ( is_array($topicid) ) {
			$this->makeTopic($topicid);
		} elseif ( $topicid != 0 ) {
			$this->getTopic(intval($topicid));
		} else {
			$this->topic_id = $topicid;
		}
	}

	function setTopicTitle($value)
	{
		$this->topic_title = $value;
	}

	function setTopicImgurl($value)
	{
		$this->topic_imgurl = $value;
	}

	function setTopicPid($value)
	{
		$this->topic_pid = $value;
	}

	function getTopic($topicid)
	{
		$topicid = intval($topicid);
		$sql = "SELECT * FROM ".$this->table." WHERE topic_id=".$topicid."";
		$array = $this->db->fetchArray($this->db->query($sql));
		$this->makeTopic($array);
	}

	function makeTopic($array)
	{
		foreach($array as $key=>$value){
			$this->$key = $value;
		}
	}

	function usePermission($mid)
	{
		$this->mid = $mid;
		$this->use_permission = true;
	}

	function store()
	{
		$myts =& MyTextSanitizer::getInstance();
		$title = "";
		$imgurl = "";
		if ( isset($this->topic_title) && $this->topic_title != "" ) {
			$title = $myts->addSlashes($this->topic_title);
		}
		if ( isset($this->topic_imgurl) && $this->topic_imgurl != "" ) {
			$imgurl = $myts->addSlashes($this->topic_imgurl);
		}
		if ( !isset($this->topic_pid) || !is_numeric($this->topic_pid) ) {
			$this->topic_pid = 0;
		}
		if ( empty($this->topic_id) ) {
			$this->topic_id = $this->db->genId($this->table."_topic_id_seq");
			$sql = sprintf("INSERT INTO %s (topic_id, topic_pid, topic_imgurl, topic_title) VALUES (%u, %u, '%s', '%s')", $this->table, $this->topic_id, $this->topic_pid, $imgurl, $title);
		} else {
			$sql = sprintf("UPDATE %s SET topic_pid = %u, topic_imgurl = '%s', topic_title = '%s' WHERE topic_id = %u", $this->table, $this->topic_pid, $imgurl, $title, $this->topic_id);
		}
		if ( !$result = $this->db->query($sql) ) {
			ErrorHandler::show('0022');
		}
		if ( $this->use_permission == true ) {
			if ( empty($this->topic_id) ) {
				$this->topic_id = $this->db->getInsertId();
			}
			$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
			$parent_topics = $xt->getAllParentId($this->topic_id);
			if ( !empty($this->m_groups) && is_array($this->m_groups) ){
				foreach ( $this->m_groups as $m_g ) {
					$moderate_topics = XoopsPerms::getPermitted($this->mid, "ModInTopic", $m_g);
					$add = true;
					// only grant this permission when the group has this permission in all parent topics of the created topic
					foreach($parent_topics as $p_topic){
						if ( !in_array($p_topic, $moderate_topics) ) {
							$add = false;
							continue;
						}
					}
					if ( $add == true ) {
						$xp = new XoopsPerms();
						$xp->setModuleId($this->mid);
						$xp->setName("ModInTopic");
						$xp->setItemId($this->topic_id);
						$xp->store();
						$xp->addGroup($m_g);
					}
				}
			}
			if ( !empty($this->s_groups) && is_array($this->s_groups) ){
				foreach ( $s_groups as $s_g ) {
					$submit_topics = XoopsPerms::getPermitted($this->mid, "SubmitInTopic", $s_g);
					$add = true;
					foreach($parent_topics as $p_topic){
						if ( !in_array($p_topic, $submit_topics) ) {
							$add = false;
							continue;
						}
					}
					if ( $add == true ) {
						$xp = new XoopsPerms();
						$xp->setModuleId($this->mid);
						$xp->setName("SubmitInTopic");
						$xp->setItemId($this->topic_id);
						$xp->store();
						$xp->addGroup($s_g);
					}
				}
			}
			if ( !empty($this->r_groups) && is_array($this->r_groups) ){
				foreach ( $r_groups as $r_g ) {
					$read_topics = XoopsPerms::getPermitted($this->mid, "ReadInTopic", $r_g);
					$add = true;
					foreach($parent_topics as $p_topic){
						if ( !in_array($p_topic, $read_topics) ) {
							$add = false;
							continue;
						}
					}
					if ( $add == true ) {
						$xp = new XoopsPerms();
						$xp->setModuleId($this->mid);
						$xp->setName("ReadInTopic");
						$xp->setItemId($this->topic_id);
						$xp->store();
						$xp->addGroup($r_g);
					}
				}
			}
		}
		return true;
	}

	function delete()
	{
		$sql = sprintf("DELETE FROM %s WHERE topic_id = %u", $this->table, $this->topic_id);
		$this->db->query($sql);
	}

	function topic_id()
	{
		return $this->topic_id;
	}

	function topic_pid()
	{
		return $this->topic_pid;
	}

	function topic_title($format="S")
	{
		$myts =& MyTextSanitizer::getInstance();
		switch($format){
			case "S":
			case "E":
				$title = $myts->htmlSpecialChars($this->topic_title);
				break;
			case "P":
			case "F":
				$title = $myts->htmlSpecialChars($myts->stripSlashesGPC($this->topic_title));
				break;
		}
		return $title;
	}

	function topic_imgurl($format="S")
	{
		$myts =& MyTextSanitizer::getInstance();
		switch($format){
			case "S":
			case "E":
				$imgurl = $myts->htmlSpecialChars($this->topic_imgurl);
				break;
			case "P":
			case "F":
				$imgurl = $myts->htmlSpecialChars($myts->stripSlashesGPC($this->topic_imgurl));
				break;
		}
		return $imgurl;
	}

	function prefix()
	{
		if ( isset($this->prefix) ) {
			return $this->prefix;
		}
	}

	function getFirstChildTopics()
	{
		$ret = array();
		$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
		$topic_arr = $xt->getFirstChild($this->topic_id, "topic_title");
		if ( is_array($topic_arr) && count($topic_arr) ) {
			foreach($topic_arr as $topic){
				$ret[] = new XoopsTopic($this->table, $topic);
			}
		}
		return $ret;
	}

	function getAllChildTopics()
	{
		$ret = array();
		$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
		$topic_arr = $xt->getAllChild($this->topic_id, "topic_title");
		if ( is_array($topic_arr) && count($topic_arr) ) {
			foreach($topic_arr as $topic){
				$ret[] = new XoopsTopic($this->table, $topic);
			}
		}
		return $ret;
	}

	function getChildTopicsTreeArray()
	{
		$ret = array();
		$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
		$topic_arr = $xt->getChildTreeArray($this->topic_id, "topic_title");
		if ( is_array($topic_arr) && count($topic_arr) ) {
			foreach($topic_arr as $topic){
				$ret[] = new XoopsTopic($this->table, $topic);
			}
		}
		return $ret;
	}

	function makeTopicSelBox($none=0, $seltopic=-1, $selname="", $onchange="")
	{
		$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
		if ( $seltopic != -1 ) {
			$xt->makeMySelBox("topic_title", "topic_title", $seltopic, $none, $selname, $onchange);
		} elseif ( !empty($this->topic_id) ) {
			$xt->makeMySelBox("topic_title", "topic_title", $this->topic_id, $none, $selname, $onchange);
		} else {
			$xt->makeMySelBox("topic_title", "topic_title", 0, $none, $selname, $onchange);
		}
	}

	//generates nicely formatted linked path from the root id to a given id
	function getNiceTopicPathFromId($funcURL)
	{
		$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
		$ret = $xt->getNicePathFromId($this->topic_id, "topic_title", $funcURL);
		return $ret;
	}

	function getAllChildTopicsId()
	{
		$xt = new XoopsTree($this->table, "topic_id", "topic_pid");
		$ret = $xt->getAllChildId($this->topic_id, "topic_title");
		return $ret;
	}

	function getTopicsList()
	{
		$result = $this->db->query('SELECT topic_id, topic_pid, topic_title FROM '.$this->table);
		$ret = array();
		$myts =& MyTextSanitizer::getInstance();
		while ($myrow = $this->db->fetchArray($result)) {
			$ret[$myrow['topic_id']] = array('title' => $myts->htmlspecialchars($myrow['topic_title']), 'pid' => $myrow['topic_pid']);
		}
		return $ret;
	}

	function topicExists($pid, $title) {
		$sql = "SELECT COUNT(*) from ".$this->table." WHERE topic_pid = ".intval($pid)." AND topic_title = '".trim($title)."'";
		$rs = $this->db->query($sql);
        list($count) = $this->db->fetchRow($rs);
		if ($count > 0) {
			return true;
		} else {
			return false;
		}
	}
}
?>