xunsearch搜索类封装

<?php
/**
 * SoClass.php
 * 索引与搜索类
 * 作者：tonyfeng (465200185@qq.com)
 * 创建时间：2012-12-19 11:44:42
 */

class SoClass {
	
	private $_xindex;
	
	private $_xsearch;
	
	private $_project;
	
	public function __construct($project){

		//载入引导文件
		require_once 'lib/XS.php';
		//初始化
		$xs = new XS($project); 
		$this->_project = $project;
		$this->_xindex = $xs->index; 
		$this->_xsearch = $xs->search;
		$this->_xsearch->setCharset('UTF-8');
	}
	
	public function query($keyWord,$row=20,$jnum=0){

		$xs = new XS($this->_project);
		$xs->search->setFuzzy();
		$xs->search->setAutoSynonyms();
		$xs->search->setQuery($keyWord); //支持同义词搜索，默认打开
		$xs->search->setLimit($row, $jnum); //设置返回结果最多为 5 条，并跳过前 10 条
		$docs = $xs->search->search(); //执行搜索，将搜索结果文档保存在 $docs 数组中		
		$count = $xs->search->count(); //获取搜索结果的匹配总数估算值
		if($count){
			$data = array();
			foreach ($docs as $key=>$doc){
				$data[$key]['pid'] = $doc->pid;
				$data[$key]['nid'] = $doc->nid;
				$data[$key]['category'] = $doc->category;
				$data[$key]['url'] = $doc->url;
				$data[$key]['name'] = $xs->search->highlight(htmlspecialchars($doc->name));
				$data[$key]['message'] = $xs->search->highlight(htmlspecialchars($doc->message));
			}
			
			return array('data'=>$data,'count'=>$count);
		}
		return array();
	}
	
	public function hotWord($num,$type='lastnum'){
	
		return $this->_xsearch->getHotQuery($num,$type);
	}
	
	public function expanded($keyWord){
		
		return $this->_xsearch->getExpandedQuery($keyWord);
	}
	
	public function lastCount(){
		
		return $this->_xsearch->getLastCount();
	}
	
	public function index($data,$update=0){
	
		// 创建文档对象
		$doc = new XSDocument;
		$doc->setFields($data);
		
		// 添加或更新到索引数据库中
		if(!$update){
			$this->_xindex->add($doc);
		}else{
			$this->_xindex->update($doc);
		}
	}
		
	public function delete($idArray){
		
		//删除索引(主键删除array('1','2','3'))
		$this->_xindex->del($idArray); 
	}
	
	public function addSynonym($word1,$word2){
		
		$this->_xindex->addSynonym($word1,$word2);
	}
	
	public function clearIndex(){
		
		$this->_xindex->clean();
	}
	
	
}

?>