<?php
namespace Westdc\Reference\Handler;

use Zend\EventManager\EventInterface;
use Westdc\Service\AbstractServiceManager;

//事件中存在的操作
class RisHandler extends AbstractServiceManager
{
	private $db;  			//传入PDO对象误
	private $config;		//全局配置
	
	private $table;
	public $tbl_maillog = "";		//邮件日志表
	
	function __construct($db = NULL)
	{
        $this->dbService = $this->getServiceManager()->get('Db');
        $this->db = $this->dbService->getPdo();
		
		$this->table = new \stdClass;
        $this->table->reference = "reference";
        $this->table->reference_author = "ref_author";
        $this->table->reference_tag = "ref_tag";
	}
	
	//检查ris中的文献是否已经存在
	public function checkRisReference(EventInterface $e)
	{
		$ref = $e->getParam('ref');
		
		$wheresql = array();
		
		if(preg_match("/\'/",$ref['title']))
		{
			$ref['title'] = preg_replace("/\'/","''",$ref['title']);
		}
		
		$wheresql[] = " lower(title)=lower('{$ref['title']}') ";
		$wheresql[] = " year='{$ref['year']}' ";
		
		//暂时不使用期刊限制
		/*if(isset($ref['publisher']))
		{
			$wheresql[] =  " publisher='{$ref['publisher']}' ";
		}*/
		
		if(count($wheresql) > 0)
		{
			$wheresql = " WHERE ".join(" and ",$wheresql);
		}else{
			$wheresql = "";
		}
		
		$sql="select * from {$this->table->reference} $wheresql";
		$sth=$this->db->query($sql);
		$row=$sth->fetch();
		$id=$row['id'];
		
		if(!empty($row['id']))
		{
			return $id;
		}else{
			return 0;
		}
	}
	
	//删除作者
	public function deleteAuthor(EventInterface $e)
	{
		$id = $e->getParam('id');

        $sql = "DELETE FROM {$this->table->reference_author} WHERE id=$id ";
        return $this->db->exec($sql);
	}
	
	public function deleteTag(EventInterface $e)
	{
		$id = $e->getParam('id');

        $sql = "DELETE FROM {$this->table->reference_tag} WHERE id=$id ";
        return $this->db->exec($sql);
	}
}