/**

* SoClass.php

* 索引與搜索類 */

class SoClass {

private $_xindex;

private $_xsearch;

private $_project;

public function __construct($project){

//載入引導文件

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); //支持同義詞搜索，默認打開

$xs->search->setLimit($row, $jnum); //設置返回結果最多為 5 條，并跳過前 10 條

$docs = $xs->search->search(); //執行搜索，將搜索結果文檔保存在 $docs 數組中

$count = $xs->search->count(); //獲取搜索結果的匹配總數估算值

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){

// 創建文檔對象

$doc = new XSDocument;

$doc->setFields($data);

// 添加或更新到索引數據庫中

if(!$update){

$this->_xindex->add($doc);

}else{

$this->_xindex->update($doc);

}

}

public function delete($idArray){

//刪除索引(主鍵刪除array('1','2','3'))

$this->_xindex->del($idArray);

}

public function addSynonym($word1,$word2){

$this->_xindex->addSynonym($word1,$word2);

}

public function clearIndex(){

$this->_xindex->clean();

}

}

?>

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