<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 14-9-25
 * Time: 下午2:41
 */

namespace Westdc\Metadata;

use Zend\ServiceManager\ServiceManager;
use Zend\ServiceManager\ServiceManagerAwareInterface;
use Westdc\EventModel\AbstractEventManager;

class Metadata extends AbstractEventManager implements ServiceManagerAwareInterface{

    protected $serviceManager;

    private $db;

    public function setServiceManager(ServiceManager $serviceManager)
    {
        $this->serviceManager = $serviceManager;

        $this->init();

        return $this;
    }

    private function init()
    {
        $dbService = $this->serviceManager->get('Db');
        $this->db = $dbService->getPdo();
    }


    public function simpleFetch($uuid)
    {
        $sql="select * from metadata where uuid='$uuid'";
        $rs = $this->db->query($sql);

        return $rs->fetch();
    }//simpleFetch

    /**
     * 通过UUID删除元数据
     * @param $uuid
     * @return bool|string
     */
    public function delete($uuid)
    {

        $tools = $this->serviceManager->get('Tools');

        if( false == $tools->isUUID($uuid) )
            return "参数错误";


        $sql = "delete from mdstatus where uuid='$uuid'";
        $sql1 = "delete from mdauthor where uuid='$uuid'";
        $sql2="delete from metadata where uuid='$uuid'";

        try{
            $this->db->exec($sql);
            $this->db->exec($sql1);
            $this->db->exec($sql2);

            $search=new Search();
            $search->del($uuid,'uuid');
        }catch(\Exception $e){
            return $e->getMessage();
        }

        return true;
    }//delete 删除元数据

}