<?php
/* 

	@version    $Id: AuthorController.php 2012-2-29 15:01 Z
	@package	author
	@copyright  Copyright (c) 2012, CAREERI.
	@license    http://
	@link       http://
	
	@update		2012-3-1	15:06   李建轩
	@update		2012-3-9	17:01	李建轩
	@update		2012-3-12	16:16	李建轩
	@update		2012-3-14	18:01	李建轩
	@update		2012-3-21	10:58	李建轩

*/
class AuthorController extends Zend_Controller_Action 
{
	private $limit=10;
	
	//调试模式 
	// 调试模式中将显示全部错误细节，电子邮件将发往调试邮箱 
	// 1 为开启
	// 0 为关闭
	public $debug = 1; 
	
	//调试模式邮箱地址
	public $debug_email = "la5c@qq.com";
	
	
	function preDispatch()
	{
		$this->view->config = Zend_Registry::get('config');
		$this->db=Zend_Registry::get('db');
		$this->messenger=$this->_helper->getHelper('FlashMessenger');
    	$this->view->messages = $this->messenger->getMessages();
	}
	function indexAction()
	{
	}
	

   /*
   * helpAction() 帮助文档
   *
   */
    function helpAction(){
	   
   }//helpAction()帮助文档
   
   /*
    * inauthorAction() 数据申请管理
	*
	* param string $ac 
	* param string $keywords
	* param string $pr			//对离线数据申请的操作
	* param string $uuid
	*
	* return view|ajax-responds
	*/
   function inauthorAction()
   {
	   
		$ac = $this->_request->getParam("ac");
		
		$auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
			$u_email = $user->email;
		}
		
		if(empty($ac) || $ac=="online" || $ac == "searchonline")
		{
			$sql = "SELECT o.id,o.userid,o.unit,o.username,o.ts_created,o.project,m.title,m.uuid FROM onlineapp as o
					LEFT JOIN metadata as m ON o.uuid=m.uuid
					LEFT JOIN mdauthor as a ON a.uuid=o.uuid
					WHERE (o.id in (SELECT distinct(onlineappid) from dataorder where status>=0)) AND a.userid = ? AND a.status=1";
			if ($ac=="searchonline")
			{
				$keywords = $this->_request->getParam('q');
				if(!empty($keywords))
					$this->view->q = $keywords;
				$search=new Search($keywords);
				$where=$search->sql_expr(array("m.title","m.description"));
				$sql.=' and '.$where;
			}
			$sql.=" ORDER BY o.id desc";
			
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
		}//在线申请记录
		
		if($ac == "offline" || $ac=="searchoffline")
		{
			$pr = $this->_request->getParam('pr');
			$oid = $this->_request->getParam('oid');
			$pdf = $this->_request->getParam('pdf');
			
			if(!empty($pr))
			{
				try{
				$this->_helper->layout->disableLayout();
				$this->_helper->viewRenderer->setNoRender();
				
				$uuid = $this->_request->getParam('uuid');
				
				if(!preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
				{
					echo "参数有误！";exit();
				}
				
				//如果用户已经下载过了，就无法在更改对数据申请的意见
				$sql = "select md.title,d.uuid,d.status as datastatus,d.authorpermitted from dataorder d 
						left join offlineapp o on o.id=d.offlineappid 
						left join metadata md on md.uuid=d.uuid
						left join mdauthor a on a.uuid=d.uuid
						where o.ts_approved is null and o.pdflink is not null 
						and d.uuid=? and a.userid=? and d.id=? AND a.status=1
						order by o.ts_created desc";
				
				$sth = $this->db->prepare($sql);
				$sth->execute(array($uuid,$u_id,$oid));
				$row = $sth->fetch();
				
				if($row['datastatus']>4)
				{
					echo "该申请已经通过并且发放数据";
					exit();
				} 
				else if (empty($row) || $row['datastatus']!=4)
				{
					echo "该数据申请存在问题，请联系数据中心！";
					exit();
				} 
				
				//同意用户下载
				if($pr=="confirm")
				{
					$sql = "UPDATE dataorder SET authorpermitted=1 WHERE uuid=? and id=?";
					$sth = $this->db->prepare($sql);
					if($sth->execute(array($uuid,$oid)))
					{
						$btn = $this->createOfflineCtBtn($uuid,'c',$oid);
						echo ''.$btn.'<script>alert("您已经同意用户的离线数据申请");</script>';
						exit();
					}else{
						echo "<script>alert('处理过程中遇到错误，请刷新页面');</script>";
						exit();
					}	
				}
				
				//反对用户下载
				if($pr == "objection")
				{
					$sql = "UPDATE dataorder SET authorpermitted=-1 WHERE uuid=? AND id=?";
					$sth = $this->db->prepare($sql);
					if($sth->execute(array($uuid,$oid)))
					{
						$btn = $this->createOfflineCtBtn($uuid,'o',$oid);
						echo ''.$btn.'<script>alert("您已经拒绝该用户的此次离线数据申请");</script>';
						exit();
					}else{
						echo "<script>alert('处理过程中遇到错误，请刷新页面');</script>";
						exit();
					}	
				}
				}catch(Exception $e)
				{
					echo "处理中遇到错误，请刷新页面后重试";
					exit();
				}
			}
			else if (!empty($pdf)) 
			{
				$sql="select o.pdflink from dataorder d left join offlineapp o on d.offlineappid=o.id
				 left join mdauthor m on d.uuid=m.uuid
				 where d.id=? and m.userid=?";
				$sth = $this->db->prepare($sql);
				$sth->execute(array($pdf,$u_id));
				$row = $sth->fetch();
				$content=file_get_contents($this->view->config->offline->savepath."/".$row['pdflink']);
				header("Content-Disposition: inline; filename=".$row['pdflink']);
				header("Content-Type:application/pdf");
				echo $content;
				die(); // do not change current html output
			}
			else
			{
				$this->_helper->viewRenderer('inauthor-offline');
				
				$select="select distinct(o.*),md.title,d.id as doid,d.uuid,d.status as datastatus,d.authorpermitted from offlineapp o 
						left join dataorder d on o.id=d.offlineappid 
						left join metadata md on md.uuid=d.uuid
						left join mdauthor a on a.uuid=d.uuid
						where o.ts_approved is null and o.pdflink is not null and d.status=4 and a.userid=? AND a.status=1 ";
				if($ac == "searchoffline")
				{
					$keywords = $this->_request->getParam('q');
					if(!empty($keywords))
						$this->view->q = $keywords;
					$search=new Search($keywords);
					$where=$search->sql_expr(array("md.title","md.description"));
					$select.=' and '.$where;
				}
				$select.=" order by o.ts_created desc";
				
				$sth = $this->db->prepare($select);
				$sth->execute(array($u_id));
				$rows = $sth->fetchAll();
				
				foreach ($rows as $k=>$v)
				{
					if($v['authorpermitted']==0)
					{$rows[$k]['btns']=$this->createOfflineCtBtn($v['uuid'],'',$v['doid']);}
					if($v['authorpermitted']>0)
					{$rows[$k]['btns']=$this->createOfflineCtBtn($v['uuid'],'c',$v['doid']);}
					if($v['authorpermitted']<0)
					{$rows[$k]['btns']=$this->createOfflineCtBtn($v['uuid'],'o',$v['doid']);}
				}
				
				$paginator = Zend_Paginator::factory($rows);
				$paginator->setCurrentPageNumber($this->_getParam('page'));
				$paginator->setItemCountPerPage(10);
				$paginator->setView($this->view);
				Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
				$this->view->paginator=$paginator;
			}
		}//离线申请
		
		
		//按数据显示
		if($ac == 'datalist' || $ac == "searchdata")
		{
			$uuid = $this->_request->getParam('uuid');
			if(!empty($uuid))
			{
				$this->_helper->viewRenderer('view-dataoreder');
				
				if(preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
				{
					$sql = "select md.title,d.id as doid,d.uuid,d.authorpermitted,d.status
							,offa.id as offa_id,offa.username as offa_name,offa.unit as offa_unit,offa.email as offa_email,offa.project as offa_project
							,ona.id as ona_id,ona.username as ona_name,ona.unit as ona_unit,ona.email as ona_email,ona.project as ona_project
							from dataorder d
							left join metadata md on md.uuid=d.uuid
							left join mdauthor a on a.uuid=d.uuid
							LEFT JOIN offlineapp offa on offa.id=d.offlineappid
							LEFT JOIN onlineapp ona on ona.id=d.onlineappid
							WHERE (offa.id IS NOT NULL OR ona.id IS NOT NULL) AND a.status=1 and d.status>=0 
							AND d.uuid=? AND a.userid=?
							ORDER BY d.ts_created DESC";
							
					$sth = $this->db->prepare($sql);
					$sth->execute(array($uuid,$u_id));
					$rows = $sth->fetchAll();
					@$this->view->mdtitle=$rows[0]['title'];
					
					foreach ($rows as $k=>$v)
					{
						if($v['authorpermitted']==0)
						{$rows[$k]['btns']=$this->createOfflineCtBtn($v['uuid'],'',$v['doid']);}
						if($v['authorpermitted']>0)
						{$rows[$k]['btns']=$this->createOfflineCtBtn($v['uuid'],'c',$v['doid']);}
						if($v['authorpermitted']<0)
						{$rows[$k]['btns']=$this->createOfflineCtBtn($v['uuid'],'o',$v['doid']);}
					}
					
					$paginator = Zend_Paginator::factory($rows);
					$paginator->setCurrentPageNumber($this->_getParam('page'));
					$paginator->setItemCountPerPage(10);
					$paginator->setView($this->view);
					Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
					$this->view->paginator=$paginator;
				}else{
					$this->view->error = "参数有误";
				}
			}else{
				$this->_helper->viewRenderer('inauthor-datalist');
				$sql = "select md.title,d.uuid,count(md.id) as c from dataorder d
						left join metadata md on md.uuid=d.uuid
						left join mdauthor a on a.uuid=d.uuid
						where a.status=1 AND a.userid=? ";
				if($ac == "searchdata")
				{
					$keywords = $this->_request->getParam('q');
					if(!empty($keywords))
						$this->view->q = $keywords;
					$search=new Search($keywords);
					$where=$search->sql_expr(array("md.title","md.description"));
					$sql.=' and '.$where;
				}
				$sql.=" GROUP BY md.title,d.uuid";
				
				$sth = $this->db->prepare($sql);
				$sth->execute(array($u_id));
				$rows = $sth->fetchAll();
				
				$paginator = Zend_Paginator::factory($rows);
				$paginator->setCurrentPageNumber($this->_getParam('page'));
				$paginator->setItemCountPerPage(10);
				$paginator->setView($this->view);
				Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
				$this->view->paginator=$paginator;
			}
			
		}//按数据显示
		
   } // inauthorAction() 数据申请管理
   
   
   /*
    * createOfflineCtBtn() 创建离线申请记录的操作按钮
	*
	*/
   function createOfflineCtBtn($uuid, $type="",$oid){
	   $urlHref = 'href="javascript:;"';
	   $baseStyle = "offline-ct-btns box-shadow";
	   $selectedStyle = "offline-select";
	   
	   $confrimText = "同意";
	   $confrimFunc = 'onclick="confirm(\''.$uuid.'\',\''.$oid.'\')"';
	   
	   $objectionText = "反对";
	   $objectionFunc = 'onclick="objection(\''.$uuid.'\',\''.$oid.'\')"';
	   
	   $btns='';
	   if(empty($type))
	   {
			$confrimBtn = "<a $urlHref class=\"$baseStyle\" $confrimFunc>$confrimText</a>";
			$objectionBtn = "<a $urlHref class=\"$baseStyle\" $objectionFunc>$objectionText</a>";
			$btns = $confrimBtn.$objectionBtn;
	   }
	   if($type=='c')
	   {
		    $confrimBtn = "<a class=\"$baseStyle $selectedStyle\">$confrimText</a>";
			$objectionBtn = "<a $urlHref class=\"$baseStyle\" $objectionFunc>$objectionText</a>";
			$btns = $confrimBtn.$objectionBtn;
	   }
	   if($type=='o')
	   {
		    $confrimBtn = "<a $urlHref class=\"$baseStyle\" $confrimFunc>$confrimText</a>";
			$objectionBtn = "<a class=\"$baseStyle $selectedStyle\">$objectionText</a>";
			$btns = $confrimBtn.$objectionBtn;
	   }
	   
	   return $btns;
	   
   } //createOfflineCtBtn()
   
   
   
   /*
    * acceptAction() 我的数据
	*
	* param string $ac		// list|search
	* param string $keyword
	*
	* return view
	*/
   function acceptAction()
   {
	    $ac  = $this->_request->getParam("ac");
		
		$auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
			$u_email = $user->email;
		}
		
		//列表
		if(empty($ac) || $ac=='list' || $ac=='search'){
		
			$sql = "SELECT a.*,m.title,m.description,g.id as gid FROM normalmetadata m
					LEFT JOIN mdauthor a ON m.uuid=a.uuid
					left join geonetworkmetadata g on m.uuid=g.uuid 
					WHERE a.userid=? AND status>=0";
			if ($ac=='search')
			{
				$key = trim($this->_request->getParam('q'));
				$this->view->q = $key;
	    		$search=new Search($key);
   	 		$where=$search->sql_expr(array("m.title","m.description"));
   	 		$sql.=' and '.$where;
			}
			$sql.="ORDER BY status DESC,a.id DESC";
					
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(5);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
			
		}//list
				
		//激活数据作者
		if($ac == "active")
		{
			$this->_helper->viewRenderer('accept-active');
			$vdcode = $this->_request->getParam('v');
			$this->view->v = $vdcode;
			
			try{
			$sql = "SELECT a.id,a.activation,a.ts_created,a.ts_activated,md.title,a.uuid,u.id as userid,u.realname,u.email FROM mdauthor a 
					LEFT JOIN metadata md ON a.uuid=md.uuid
					LEFT JOIN users u ON a.userid=u.id
					WHERE a.activation=?";
			
			$sth = $this->db->prepare($sql);
			$sth->execute(array($vdcode));
			$row = $sth->fetch();
			
			if(empty($row['id']))
			{
				$this->view->info='此激活码无效';
			}else{
				if(empty($row['ts_activated']))
				{
					$sql = "UPDATE mdauthor SET ts_activated=?,status=? WHERE activation=?";
					
					$sth = $this->db->prepare($sql);
					$ex = $sth->execute(array('now()',1,$vdcode));
					
					if($ex)
					{
						include_once("EmailText.php");
						$this->author_first($row['uuid'],$row['userid']);
						$mail=new WestdcMailer($this->view->config->smtp);
						$mail->setFrom($this->view->config->service->email,'西部数据中心服务组');
						$mailtp=new EmailText($this->db,"author-new",array(
							'user' => $row['realname'],
							'uuid' => $row['uuid'],
							'title'=> $row['title'],
							'email'=> $row['email'],
							));
						$mail->setBodyText($mailtp->getBody());
						$mail->setSubject($mailtp->getSubject());
						if($this->debug==0)
						{
							//获得元数据作者email
							/* 不需要给这些人发通知邮件
							$info = $this->getEmail($uuid,1);
							
							$address = $info['addrs'];
							foreach($address as $v)
							{
								$mail->addTo($v);
							}*/
							$mail->addTo($row['email']);
							$mail->addCc($this->view->config->service->email);	//管理员
						}else{
							$mail->addTo($this->debug_email);
						}
						$mail->send();
						$this->view->info = '激活成功<br /><a href="/author/accept">点击这里</a>进入我的数据页面查看';
					}else
					{
						$this->view->info = "激活中遇到问题，请重试";
					}
				}else
				{
					$this->view->info='此激活码已经失效';
				}
				
			}
			
			}catch(Exception $e){
				if($this->debug==0)
				{
					$this->view->info = "处理中遇到错误，请重新尝试";
				}else{
					$this->view->info = $e->getMessage();
				}
			}
				
		}//激活数据作者
		
		//拒绝激活
		if($ac == "lock")
		{
			$this->_helper->viewRenderer('accept-active');
			$vdcode = $this->_request->getParam('v');
			$this->view->v = $vdcode;
			
			try{
			$sql = "SELECT a.id,a.activation,a.ts_created,a.ts_activated,md.title,a.uuid,u.realname,u.email FROM mdauthor a 
					LEFT JOIN metadata md ON a.uuid=md.uuid
					LEFT JOIN users u ON a.userid=u.id
					WHERE a.activation=?";
			
			$sth = $this->db->prepare($sql);
			$sth->execute(array($vdcode));
			$row = $sth->fetch();
			
			if(empty($row['id']))
			{
				$this->view->info='此激活码无效';
			}else{
				if(empty($row['ts_activated']))
				{
					$sql = "UPDATE mdauthor SET ts_activated=?,status=? WHERE activation=?";
					
					$sth = $this->db->prepare($sql);
					$ex = $sth->execute(array('now()',-1,$vdcode));
					
					if($ex)
					{
						include_once("EmailText.php");
						$mail=new WestdcMailer($this->view->config->smtp);
						$mail->setFrom($this->view->config->service->email,'西部数据中心服务组');
						$mailtp=new EmailText($this->db,"author-deny",array(
							'user' => $row['realname'],
							'uuid' => $row['uuid'],
							'title'=> $row['title'],
							'email'=> $row['email'],
							));
						$mail->setBodyText($mailtp->getBody());
						$mail->setSubject($mailtp->getSubject());
						if($this->debug==0)
						{
							$mail->addTo($row['email']);
							$mail->addCc($this->view->config->service->email);
						}else{
							$mail->addTo($this->debug_email);
						}
						$mail->send();
						$this->view->info = '该申请已被拒绝,<a href="/author/accept">点击这里</a>进入我的数据页面查看';
					}else
					{
						$this->view->info = "激活中遇到问题，请重试";
					}
				}else
				{
					$this->view->info='此激活码已经失效';
				}
				
			}
			
			}catch(Exception $e){
				if($this->debug==0)
				{
					$this->view->info = "处理中遇到错误，请重新尝试";
				}else{
					$this->view->info = $e->getMessage();
				}
			}
				
		}//否认激活
	
   }//acceptAction() 我的数据
   
   
   /*
   *
   * getEmail()		获取数据所有者电子邮箱地址
   *
   * param string $uuid		//UUID
   * param int	$level		//输出信息等级
   *							0 => 输出所有Email地址
   *							1 => 输出数据权限等级最高的Email地址 (def) 
   *							
   * return array()
   */
   function getEmail($uuid,$level=1)
   {
	   //需要定义角色，防止程序流程出错
		$addrs = array();
		$addrs['resourceProvider'] = array();
		$addrs['owner'] = array();
		$addrs['pointOfContact'] = array();
		$addrs['author'] = array();
		$addrs["publisher"] = array();

		$sql = 'select r.uuid,p.email,md.title,r.role from normalmetadata md
				LEFT JOIN role r ON md.uuid=r.uuid
				left join responsible p on r.resid=p.id 
				WHERE r.uuid=? AND p.email IS NOT NULL AND p.email!=?
				GROUP BY r.uuid,p.email,md.title,r.role';
		$sth = $this->db->prepare($sql);
		$sth->execute(array($uuid,''));
		$rows = $sth->fetchAll();
		
		$addrs['title'] = $rows[0]['title'];
		
		foreach($rows as $k=>$v)
		{
			//数据资源提供者resourceProvider
			if($v['role']=='resourceProvider')
			{
				$addrs['resourceProvider'][]=$v['email'];
			}
			
			//数据资源所有者owner
			if($v['role']=='owner')
			{
				$addrs['owner'][]=$v['email'];
			}
			
			//数据联系人pointOfContact
			if($v['role']=='pointOfContact')
			{
				$addrs['pointOfContact'][]=$v['email'];
			}
			
			//元数据作者author
			if($v['role']== 'author' )
			{
				$addrs['author'][] = $v['email'];
			}
			
			if($v["role"] =="")
			{
				$addrs["publisher"][] = $v['email'];
			}
		}
		
		//输出所有email （多维数组）
		/*
		$addrs['resourceProvider']
		$addrs['owner']
		$addrs['pointOfContact']
		$addrs['author']
		*/
		if($level == 0)
		{
			return $addrs;
		}
		
		
		//输出最高优先级的Email
		//$addrs['addrs']
		if($level == 1)
		{
			//如果有 数据资源提供者 resourceProvider  就输出他的地址 以此类推
			if(count($addrs['resourceProvider'])>0)
			{
				$addrs['addrs'][] = $addrs['resourceProvider'];
				return $addrs;
			}
			
			if(count($addrs['owner'])>0)
			{
				$addrs['addrs'][] = $addrs['owner'];
				return $addrs;
			}
			
			if(count($addrs['pointOfContact'])>0)
			{
				$addrs['addrs'][] = $addrs['pointOfContact'];
				return $addrs;
			}
			
			if(count($addrs['author'])>0)
			{
				$addrs['addrs'][] = $addrs['author'];
				return $addrs;
			}
			
			if(count($addrs["publisher"])>0)
			{
				$addrs['addrs'][] = $addrs["publisher"];
				return $addrs;
			}
		}
	   
   }//getEmail 获取数据作者email地址
   
   
   
   /*
    * applyAction() 申请成为元数据作者
	*
	* param string $ac		//动作 search|apply
	* param string $q		//搜索关键词
	* param string $uuid	//数据的UUID
	*
	* return view|ajax|json
	*
	* 调试搜索结果:
	* /author/apply?ac=apply&uuid=816ecd28-ba88-464b-a83a-341440f536ef
	*/
   function applyAction()
   {
	   $ac = $this->_request->getParam('ac');
	   
	   	//搜索动作
		if($ac == "search")
		{
			$this->_helper->layout->disableLayout();
			$this->_helper->viewRenderer->setNoRender();
			
			//要输出的Json对象
			//过程中如果没有处理，则不包含任何返回信息，由前台定义提示信息，如:
			/*
				$.ajax({
				  'type':"POST",
				  'url':'/author/apply',
				  'data':'ac=search&q='+$('#keyword').val(),
				  'success':function(data){
					  if (typeof(data)=='object')   //如果服务器端的响应为Json对象
					  {
						if(typeof(data.error)!='undefined')   //服务器端响应的错误消息
						{
							alert(data.error);
						}else{		//服务器端无错误消息则为成功的响应
							alert(data.length);
						}
					  }else{ 		//服务器端响应了非JSON对象或者为空
						  alert('无搜索结果');  
					  }
				  },
				  'beforeSend':function(){
					  //请求发送前
					  }
			  });
			  
			  错误消息的键名必须为error，不包含JS脚本,如：
			  $data['error'] = '服务器忙!';
			*/
			$data = "";
			
			//防止通过其它方式访问，先判断是否是登录用户，如果不是，抛出消息后强制用户退出
			$auth = Zend_Auth::getInstance();
			if($auth->hasIdentity())
			{
				$user = $auth->getIdentity();
				$u_id = $user->id;
			}else{
				$data = array("error"=>"请先登录");
				$this	->getResponse()
						->setHeader('Content-Type', 'application/json')
						->appendBody(Zend_Json::encode($data));
				return true;
			}
			
			
			//数据处理代码 EOH<<<<<<<<<<<<<<<<
			try{
				
				$keyword = trim($this->_request->getParam('q'));
				if (strlen(trim($keyword))<3) 
					$data = array('error'=>'搜索关键字过短');
				else if (!preg_match_all("/^[\x{4e00}-\x{9fa5}A-Za-z0-9\s_]+$/u",$keyword,$matchs))
				{
					$data = array('error'=>'搜索关键字中只能包含汉字、英文、数字');
				}
				else
				{
					//搜索标题和描述两个字段
					$sql = "SELECT m.uuid,m.title,m.description,a.status,a.userid FROM normalmetadata m
							LEFT JOIN mdauthor a ON m.uuid=a.uuid 
							WHERE ";
					$search=new Search($keyword);
					$where=$search->sql_expr(array("m.title","m.description"));
					$sql.=$where;
					$sth = $this->db->prepare($sql);
					$sth->execute();
					$rows = $sth->fetchAll();
					
					if(is_array($rows) && count($rows)>0)
					$data = $rows;
					else
					$data = "";
				}
			
			}catch(Exception $e){
				//如果上面的程序已经发送出提示，就不发送抛出的错误
				if(empty($data['error']))
				{
					if($this->debug==0)
					{
						$data = array("error"=>"处理过程中遇到错误，请重新尝试");
					}else{
						$data = array("error"=>$e->getMessage());
					}
				}
			}	
			// >>>>>>>>>>> F
			
			//截获响应对象，并修改头部和内容
			//不管有没有数据存在，都将返回Json数据，前台有判断机制来分析数据
			
			$this	->getResponse()
					->setHeader('Content-Type', 'application/json')
					->appendBody(Zend_Json::encode($data));
		}// search
		
		
		/****************
		 	 申请动作
		 ****************/
		if($ac == "apply")
		{
			$this->_helper->layout->disableLayout();
			$this->_helper->viewRenderer->setNoRender();
			
			$data = ""; 
			
			$auth = Zend_Auth::getInstance();
			if($auth->hasIdentity())
			{
				$user = $auth->getIdentity();
				$u_id = $user->id;
				$u_email = $user->email;
			}
			
			//处理部分<<<<<<<<<<
			try{
				
				$uuid = $this->_request->getParam('uuid');
				
				if(preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
				{
					
					//判断该用户是否已经申请过或者是否已经是该元数据作者
					$sql="SELECT id,status FROM mdauthor WHERE uuid=? AND userid=?";
					$sth = $this->db->prepare($sql);
					$sth->execute(array($uuid,$u_id));
					$row = $sth->fetch();
						
					//如果已经是元数据作者，从流程中直接退出程序
					if(!empty($row['id']) && $row['status']==1)
					{
						$data = array("error"=>"您目前已经是该数据作者，不需要再申请");
					}
					
					//如果已经遭到明确拒绝，则不允许用户再次申请
					if(!empty($row['id']) && $row['status']==-1)
					{
						$data = array("error"=>"您的申请已经遭到拒绝，不能再申请，有疑问请联系数据中心");
					}
					
					
					//如果已经存在申请，但是没有激活的，返回激活信息
					if($row['status']==0){
					if(!empty($row['id']) && empty($m))
					{
						$data = array(
							"error"=>'您已经申请过了，如果长时间没有收到回应请联系数据中心',
							"post"=>"activa",
							"uid"=>$u_id,
							"uemail"=>$u_email,
							"uuid"=>$uuid,
						);
					}//if
					
					else{
						
						$info = $this->getEmail($uuid,1);

						$address = $info['addrs'];

						$mdtitle = $info['title'];
						
						//如果当前用户的email包含在元数据作者email列表中，则直接使其成为元数据作者
						if(in_array($u_email,$address))
						{
							$sql = "INSERT INTO mdauthor (uuid,userid,activation,ts_activated,status) VALUES (?,?,?,?,?)";
							$sth = $this->db->prepare($sql);
							$ex = $sth->execute(array($uuid,$u_id,'','now()',1));
							if($ex)
							{
								$data = array("error"=>"您的身份符合申请条件，已经自动成为该元数据作者");
								$this->author_first($uuid,$u_id);
								include_once("EmailText.php");
								$mail=new WestdcMailer($this->view->config->smtp);
								$mail->setFrom($this->view->config->service->email,'西部数据中心服务组');
								$mailtp=new EmailText($this->db,"author-new",array(
									'user' => $user->realname,
									'uuid' => $uuid,
									'title'=> $mdtitle,
									'email'=> $u_email,
									));
								$mail->setBodyText($mailtp->getBody());
								$mail->setSubject($mailtp->getSubject());

								if($this->debug==0)
								{
									foreach ($address as $dist)
									{$mail->addTo($dist);}	//元数据作者
									$mail->addTo($u_email);
									$mail->addCc($this->view->config->service->email);	//管理员
								}else{
									$mail->addTo($this->debug_email);
								}
								$mail->send();
							}
							else
							{
								$data = array("error"=>"处理中出现错误，请重新尝试");
							}
						}
						
						//如果不包含在当前元数据作者的email列表中
						//给数据拥有者发送邮件，使其决定是否同意新加入作者
						else
						{
							//生成激活码
							$ssid = session_id();
							$vdcode = md5($uuid.$ssid.$u_id.time());
							
							//激活链接
							// /author/accept/?ac=active&vdcode=$vdcode
							$sql = "INSERT INTO mdauthor (uuid,userid,activation) VALUES (?,?,?)";
							$sth = $this->db->prepare($sql);
							$ex = $sth->execute(array($uuid,$u_id,$vdcode));
							
							if($ex)
							{
								//给申请者发送邮件
								include_once("EmailText.php");
								@$mail=new WestdcMailer($this->view->config->smtp);
								@$mail->setFrom($this->view->config->service->email,'西部数据中心服务组');
								@$mailtp=new EmailText($this->db,"author-apply",array(
									'user' => $user->username,
									'uuid' => $uuid,
									'email'=> $user->email,
									//元数据标题
									'title'=> $mdtitle,
									));
								@$mail->setBodyText($mailtp->getBody());
								@$mail->setSubject($mailtp->getSubject());
								if($this->debug==0)
								{
									@$mail->addTo($user->email);
								}else{
									@$mail->addTo($this->debug_email);
								}
								
								@$mail->send();
								
								unset($mail);
								unset($mailtp);
								//给元数据作者以及管理员发送邮件
								@$mail=new WestdcMailer($this->view->config->smtp);
								@$mail->setFrom($this->view->config->service->email,'西部数据中心服务组');
								@$mailtp=new EmailText($this->db,"author-apply-confirm",array(
									'user' => $user->username,
									'uuid' => $uuid,
									'email'=> $u_email,
									'title'=> $mdtitle,
									'link'=>"http://".$_SERVER['SERVER_NAME']."/data/$uuid",
									
									//验证码
									'vdcode' => $vdcode,
									
									//激活链接
									'active'=>"http://".$_SERVER['SERVER_NAME']."/author/accept/?ac=active&v=$vdcode",
									
									//不同意激活的链接
									'lock'=>"http://".$_SERVER['SERVER_NAME']."/author/accept/?ac=lock&v=$vdcode",
									));
								@$mail->setBodyText($mailtp->getBody());
								@$mail->setSubject($mailtp->getSubject());
					
								if($this->debug==0)
								{
									$sql = "SELECT u.email FROM mdauthor a
											LEFT JOIN users u ON u.id=a.userid
											WHERE a.uuid=?";
									$sth = $this->db->prepare($sql);
									$sth->execute(array($uuid));
									$mlist = $sth->fetchAll();
									
									if(count($mlist)>0)
									{
										foreach($mlist as $v)
										{
											$mail->addTo($v['email']);
										}
									}//mdauthor中已经注册的用户
									
									else{
										foreach ($address as $dist)
										{
											$mail->addTo($dist);
										}
									}//元数据作者
									$mail->addCc($this->view->config->service->email);	//管理员
								}else{
									@$mail->addTo($this->debug_email);
								}
								
								@$mail->send();
								
								$data = array("error"=>"您的申请已收到，请耐心等待回应");
								
							}else{
								$data = array("error"=>"服务器可能在忙，请重试。");
							}//激活码记录
						}//不是确认的元数据作者
					}//empty($row['id'])
					}// status == 0
					
					//调试输出结果
					//$data = array('addr'=>$address,'uemail'=>$u_email);
				}
				else
				{
					$data = array('error'=>'参数出错，请按照正确的访问方式申请');
				}
			}catch(Exception $e){
				if(empty($data['error']))
				{
					if($this->debug==0)
					{
						$data = array("error"=>"处理过程中遇到错误，请重新尝试");
					}else{
						$data = array("error"=>$e->getMessage());
					}
			
				}
			}
			
			// >>>>>>>>>>>>
			
			$this	->getResponse()
					->setHeader('Content-Type', 'application/json')
					->appendBody(Zend_Json::encode($data));
					
		}// ac = apply 申请处理
		
   }//applyAction() 申请成为元数据作者
   
   
   
   /*
   * commentAction() 数据反馈
   *
   * param string $ac			动作
   * param string $uuid			元数据UUID
   * param int $page			页数
   *
   * return view
   */
   function commentAction()
   {
	   $ac = $this->_request->getParam('ac');
	   
	   $auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
		}
	   
	   if(empty($ac)|| $ac=='list')
	   {
			$sql = "SELECT md.title,md.uuid,count(c.id) as c FROM comments c
					LEFT JOIN metadata md ON md.uuid=c.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1
					GROUP BY md.title,md.uuid
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
			
	   }
	   
	   if($ac=="view")
	   {
		   
		   $uuid = $this->_request->getParam('uuid');
		   if(preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
		   {
				$sql = "SELECT c.author,c.email,c.url,c.ts_created,c.content,m.title FROM comments c
						LEFT JOIN mdauthor a ON a.uuid=c.uuid
						left join metadata m on m.uuid=c.uuid
						WHERE c.uuid=? AND a.userid=? AND a.status=1
						ORDER BY ts_created DESC";
						
				$sth = $this->db->prepare($sql);
				$sth->execute(array($uuid,$u_id));
				$rows = $sth->fetchAll();
				@$this->view->mdtitle=$rows[0]['title'];
				
				$paginator = Zend_Paginator::factory($rows);
				$paginator->setCurrentPageNumber($this->_getParam('page'));
				$paginator->setItemCountPerPage(10);
				$paginator->setView($this->view);
				Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
				$this->view->paginator=$paginator;
		   }
		   
		   $this->_helper->viewRenderer('comment-list');
	   }
	   
	   if($ac == "listall")
	   {
			$sql = "SELECT md.title,c.author,c.email,c.url,c.ts_created,c.content FROM comments c
					LEFT JOIN mdauthor a ON a.uuid=c.uuid
					LEFT JOIN normalmetadata md ON md.uuid=c.uuid
					WHERE a.userid=? AND a.status=1
					ORDER BY ts_created DESC";
					
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
		   
			$this->_helper->viewRenderer('comment-listall');
	   }
   }// commentAction() 数据反馈
   
   
   /*
   * newsAction() 数据新闻
   *
   * param string $ac
   *
   *
   */
   function newsAction(){
	   
		$ac = $this->_request->getParam('ac');
	   
		$auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
		}
		
		//新闻列表
		if(empty($ac) || $ac=="list")
		{
			$keyword = $this->_request->getParam('q');
			$uuid = $this->_request->getParam('uuid');
			
			$wheresql = "";
			$join = "";
			
			if(!empty($keyword))
			{
				$this->view->q = $keyword;
				$search = new Search($keyword);
                $wheresql = $search->sql_expr(array("arc.title","arc.description")); 
			}
			
			if(!empty($wheresql))
			{
				$wheresql = " AND ".$wheresql;
			}
			
			if(!empty($uuid) && preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
			{
				$join = "LEFT JOIN news_mdnews mdnews ON mdnews.aid=arc.id";
				$wheresql .= " AND mdnews.uuid='$uuid'";
			}
			
			$sql = "SELECT arc.id,arc.title,arc.ts_published,arc.description,u.realname FROM news_archives arc
					LEFT JOIN users u ON arc.userid=u.id
					$join
					WHERE arc.is_pub>0 AND arc.ts_published<'now()' $wheresql
					ORDER BY arc.ts_published";


			$sth = $this->db->prepare($sql);
			$sth->execute();
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
			
		}
		
		if($ac == "view")
		{
			
			$this->_helper->viewRenderer('news-view');
			$aid = (int)$this->_request->getParam('aid');
			
			if(empty($aid) || !is_numeric($aid))
			{
				$this->_redirect('/error/error');
			}
			
			else
			{
				$this->db->exec("UPDATE news_archives arc SET click=click+1 WHERE arc.id=$aid");
				$sql = "SELECT arc.*,u.realname FROM news_archives arc 
						LEFT JOIN users u ON u.id=arc.userid
						WHERE arc.id=?";
				$sth = $this->db->prepare($sql);
				$sth -> execute(array($aid));
				$row = $sth->fetch();
				$this->view->info = $row;
			}
			
			
		}
	   
		//新闻发布
		if($ac == "add")
		{
			$this->_helper->viewRenderer('news-add');
			
			$sql = "SELECT md.title,md.uuid FROM metadata md
					LEFT JOIN mdauthor a ON a.uuid = md.uuid
					WHERE a.userid=? AND a.status=1
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$this->view->md = $rows;
		}// $ac == add
		
		//新闻编辑
		if($ac == "edit")
		{
			$this->_helper->viewRenderer('news-edit');
			
			$aid = (int)$this->_request->getParam('aid');
			
			if(empty($aid) || !is_numeric($aid))
			{
				$this->_redirect('/error/error');
			}
			
			$sql = "SELECT arc.*,mdarc.uuid FROM news_archives arc 
					LEFT JOIN news_mdnews mdarc ON mdarc.aid = arc.id
					WHERE id=?";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($aid));
			$row = $sth->fetch();
			
			$this->view->info = $row;
			
		}//$ac == "edit"
		
		//新闻发布的ajax动作
		if($ac =="addnews")
		{
			try{
				$this->_helper->layout->disableLayout();
				$this->_helper->viewRenderer->setNoRender();
				
				$data = array();
			   
			   	$aid = $this->_request->getParam('aid');
				$data['title'] = trim($this->_request->getParam('title'));
				$data['keyword'] = trim($this->_request->getParam('keyword'));
				$data['body'] = trim($this->_request->getParam('body'));
				$uuid = trim($this->_request->getParam('uuid'));
				
				//对参数进行预处理
				foreach($data as $k=>$v)
				{
					$data[$k]=preg_replace("#<a([^>]*)>(.*)</a>#i","",$v);
					$data[$k]=preg_replace("#<script([^>]*)>(.*)</script>#i","",$v);
					$data[$k]=preg_replace("#<iframe([^>]*)>(.*)</iframe>#i","",$v);
					$data[$k]=str_replace("\"","“",$v);
					$data[$k]=str_replace("\'","‘",$v);
				}
				
				$msg = array();
				
				// 合法性判断
				if(mb_strlen($data['title'],"utf-8")<3)
				{
					$msg['status'] = 0;
					$msg['error'] = '标题太短，请重新填写';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				if(mb_strlen($data['title'],"utf-8")>60)
				{
					$msg['status'] = 0;
					$msg['error'] = '标题太长，请重新填写';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				if(empty($uuid))
				{
					$msg['status'] = 0;
					$msg['error'] = '请选择对应数据';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				if(mb_strlen($data['keyword'],"utf-8")<4)
				{
					$msg['status'] = 0;
					$msg['error'] = '关键词太短，请重新填写';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				if(mb_strlen($data['keyword'],"utf-8")>40)
				{
					$msg['status'] = 0;
					$msg['error'] = '关键词太长，请重新填写';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				if(mb_strlen($data['body'],"utf-8")<40)
				{
					$msg['status'] = 0;
					$msg['error'] = '新闻内容太短，请重新填写';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				if(!preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
				{
					$msg['status'] = 0;
					$msg['error'] = '参数错误，请重试';
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
				
				//获得描述
				//删除段落及html标记
				$data['description'] = mb_substr(preg_replace(array("/<(.*)>|<(.*) \/>/i","/\s/i"),array(""," "),$data['body']),0,450,"UTF-8"); 
				
				//默认填充数据
				$data['source'] = "西部数据中心";
				$data['typeid'] = 0;
				$data['userid'] = $u_id;
				$data['keyword'] = str_replace("，",",",$data['keyword']);
				
				//新闻添加
				if(empty($aid))
				{
					$sql = "INSERT INTO news_archives 
					(userid,title,keywords,description,image,source,ts_published,is_pub,body)
					VALUES
					(?,?,?,?,?,?,?,?,?)
					RETURNING id
					";
					$sth = $this->db->prepare($sql);
					$ex = $sth -> execute(array($data['userid'],$data['title'],$data['keyword'],$data['description'],'',$data['source'],'now()',1,$data['body']));
					
					//添加成功
					if($ex)
					{
						//写入文章ID对应UUID的表
						$archive = $sth->fetch(PDO::FETCH_ASSOC);
						$aid = $archive['id'];
						
						$sql = "INSERT INTO news_mdnews (aid,uuid) VALUES (?,?)";
						$sth = $this->db->prepare($sql);
						$uuidex = $sth->execute(array($aid,$uuid));
						
						if($uuidex)
						{
							$msg['status'] = 1;
							$msg['outstring'] = "新闻添加成功";
							$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
							return true;
						}else{
							$sql = "DELETE FROM news_archives WHERE id=$aid";
							@$this->db->exec($sql);		//如果新闻添加失败就删除原新闻，否则产生重复错误
							$msg['status'] = 0;
							$msg['error'] = "新闻添加失败，请重试";
							$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
							return true;
						}
					//添加失败
					}else{
						$msg['status'] = 0;
						$msg['error'] = "新闻添加失败，请重试";
						$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
						return true;
					}	
				}//新闻添加 end -->
				
				//新闻修改
				else
				{
					$sql = "UPDATE news_archives SET title=?,keywords=?,description=?,body=? WHERE id=? AND userid=?";
					$sth = $this->db->prepare($sql);
					$ex = $sth -> execute(array($data['title'],$data['keyword'],$data['description'],$data['body'],$aid,$data['userid']));
					
					if($ex)
					{
						$msg['status'] = 1;
						$msg['outstring'] = "新闻编辑成功";
						$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
						return true;
					}else{
						$msg['status'] = 0;
						$msg['outstring'] = "新闻编辑失败，请重试";
						$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
						return true;
					}
				}//新闻修改 end -->
				
			}catch(Exception $e){
				if($this->debug==0)
				{
					$msg['status'] = 0;
					if(empty($aid))
					{$msg['error'] = "新闻添加失败，请重试";}
					else
					{$msg['error'] = "新闻编辑失败，请重试";}
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}else{
					$msg['status'] = 0;
					$msg['error'] = "新闻添加/编辑失败，请重试:".$e->getMessage();
					$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($msg));
					return true;
				}
			}//catch end	
		}//$ac = 'newsadd' endif;
	   
	   
   }//newsAction() 数据新闻
   
   function viewauthorsAction(){
	   
		$this->_helper->viewRenderer('view-authors');
	   
		$uuid = $this->_request->getParam('uuid');
		if(preg_match("/^[0-9A-Za-z]{8}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{4}-[0-9A-Za-z]{12}$/",$uuid))
		{
			$sql = "SELECT u.realname,u.unit,u.email,m.title,m.description FROM normalmetadata m
					LEFT JOIN mdauthor a ON m.uuid=a.uuid
					LEFT JOIN users u ON u.id=a.userid
					WHERE status>=0 AND m.uuid=? AND a.status=1
					ORDER BY status DESC,a.id DESC";
					
			$sth = $this->db->prepare($sql);
			$sth->execute(array($uuid));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
		}else{
			$this->view->error = "参数有误";
		}
   }

   function versionAction()
   {
	   $ac = $this->_request->getParam('ac');
	   $uuid = $this->_request->getParam('uuid');
	   
	   $auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
		}
	   
	   //查看单条数据的所有版本
	   if (!empty($uuid) && empty($ac))
	   {
	   	//view the versions of the data
			$sql = "SELECT md.title,md.uuid,v.ts_created,v.changelog,v.userid,v.id,u.username,u.realname FROM mdversion v
					LEFT JOIN metadata md ON md.uuid=v.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					left join users u on v.userid=u.id
					WHERE md.title IS NOT NULL AND a.userid=? and v.uuid=? AND a.status=1
					order by v.ts_created desc
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id,$uuid));
			$rows = $sth->fetchAll();
			@$this->view->mdtitle=$rows[0]['title'];
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;	   	
	   }
	   
	   //查看所有版本列表
	   else if((empty($ac) && empty($uuid))|| $ac=='list')
	   {
			$sql = "SELECT md.title,md.uuid,v.ts_created,v.changelog,v.userid,v.id,u.username,u.realname FROM mdversion v
					LEFT JOIN metadata md ON md.uuid=v.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					left join users u on v.userid=u.id
					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1
					order by v.ts_created desc
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;			
	   }
	   
	   //按数据浏览
	   else if($ac=="bydata")
	   {
	   	$keywords = $this->_request->getParam('q');
			if(!empty($keywords))
				$this->view->q = $keywords;
			$sql = "SELECT md.title,md.uuid,count(v.id) as c FROM mdversion v
					LEFT JOIN metadata md ON md.uuid=v.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
			if(!empty($keywords))
			{
				$search=new Search($keywords);
				$where=$search->sql_expr(array("md.title","md.description"));
				$sql.=' and '.$where;
			}
			$sql.=" group by md.uuid,md.title";

			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
		   
			$this->_helper->viewRenderer('version-bydata');
	   }
	   
	   
	   //删除某个版本
	   else if($ac=="delete")
	   {
		   $this->_helper->layout->disableLayout();
		   $this->_helper->viewRenderer->setNoRender();
		   
		   $data = "";
		   
		   try{
		   $id = $this->_request->getParam('id');
		   if(empty($id) || !is_numeric($id))
		   {
				$data = array("error"=>"参数错误");
				$this->jsonexit($data);
				return true;
		   }
		   
		   $sql = "DELETE FROM mdversion v
		   			USING mdauthor a
		   			WHERE v.uuid=a.uuid and v.id=? AND a.userid=? AND a.status=1";
		   $sth = $this->db->prepare($sql);
		   $ex = $sth -> execute(array($id,$u_id));
		   
		   if($ex)
		   {
			   $data = array("deleted"=>$id,"error"=>$this->alertbox('ok','删除成功'));
			   $this->jsonexit($data);
				return true;
		   }else{
			   $data = array("error"=>$this->alertbox('error','删除失败，请确认权限后重试'));
			   $this->jsonexit($data);
				return true;
		   }
		   }catch(Exception $e) {
			   $msg = "删除失败，请确认权限后重试";
			   if($this->debug>0)
			   {$msg .= $e->getMessage();}
			   $data = array("error"=>$this->alertbox('error',$msg));
			   $this->jsonexit($data);
				return true;
		   }
	   }
	   
	   //恢复到geonetwork
	   else if($ac == "restore")
	   {
		   $this->_helper->layout->disableLayout();
		   $this->_helper->viewRenderer->setNoRender();
		   
		   $data = "";
		   try{
		   $id = $this->_request->getParam('id');
		   if(empty($id) || !is_numeric($id))
		   {
				$data = array("error"=>"参数错误");
				$this->jsonexit($data);
				return true;
		   }
		   
			$this->wdb=Zend_Db::factory($this->view->config->geonetwork);
			$sql = "SELECT v.xml,v.uuid FROM mdversion v 
					LEFT JOIN mdauthor a ON a.uuid=v.uuid
					WHERE v.id=? AND a.userid=? AND a.status=1";
			$sth = $this->db->prepare($sql);
			$sth ->execute(array($id,$u_id));
			$row = $sth->fetch();
			
			$sql = "SELECT data FROM metadata WHERE uuid=?";
			$sth = $this->wdb->prepare($sql);
			$sth ->execute(array($row['uuid']));
			$row_geo = $sth->fetch();
			
			if($row['xml']==$row_geo['data'])
			{
				$data = array("error"=>$this->alertbox('warning','无须恢复，元数据相同'));
				$this->jsonexit($data);
				return true;
			}

			$sql = "UPDATE metadata SET data=? WHERE uuid=?";
			$sth = $this->wdb->prepare($sql);
			$ex = $sth ->execute(array($row['xml'],$row['uuid']));
			
			if($ex)
			{
				$data = array("error"=>$this->alertbox('ok','恢复成功'));
				$this->jsonexit($data);
				return true;
			}else{
				$data = array("error"=>$this->alertbox('error','恢复失败，请确认权限后重试'));
				$this->jsonexit($data);
				return true;
			}
		   }catch(Exception $e) {
			   $msg = "恢复失败，请确认权限后重试";
			   if($this->debug>0)
			   {$msg .= $e->getMessage();}
			   $data = array("error"=>$this->alertbox('error',$msg));
			   $this->jsonexit($data);
				return true;
		   }
	   }
	   
	   //发布到评审
	   else if($ac == "commit")
	   {
		   $this->_helper->layout->disableLayout();
		   $this->_helper->viewRenderer->setNoRender();
		   
		   $data = "";
		   try{
			   $id = $this->_request->getParam('id');
			   if(empty($id) || !is_numeric($id))
			   {
					$data = array("error"=>"参数错误");
					$this->jsonexit($data);
					return true;
			   }
			   
				$changelog = $this->_request->getParam('changelog');
			   if(empty($changelog))
			   {
					$data = array("error"=>$this->alertbox('warning','请输入变更信息'));
					$this->jsonexit($data);
					return true;
			   }
			   				
			   // 1. 权限认定
			   $sql="select a.* from mdauthor a left join mdversion v on a.uuid=v.uuid 
			   	where a.status=1 and a.userid=? and v.id=?";
			   $sth=$this->db->prepare($sql);
			   $sth->execute(array($u_id,$id));
			   $row=$sth->fetch();
			   if (empty($row))
			   {
					$data = array("error"=>'无权限修改数据');
					$this->jsonexit($data);
					return true;
				}
				
				// 2. 获取数据评审状态
			   $sql = "SELECT s.* FROM mdstatus s left join mdversion v on s.uuid=v.uuid WHERE v.id=?";
				$sth = $this->db->prepare($sql);
				$sth->execute(array($id));
				$row = $sth->fetch();
				
				if (empty($row)) //无对应记录
				{
					// do 
				}
				else if ($row['id']==-1) //取消发布的数据
				{
					//do something.
				}
				else if ($row['id']==0) //初始状态
				{
					//do
				}
				else if ($row['id']==1)//接收
				{
					//
				}
				else if ($row['id']==2)//已发送过外审邮件，需由编辑告知变化信息
				{
					//do
				}
				else if ($row['id']==3 || $row['id']==4)//专家在审理中
				{
					//do
				}
				else if ($row['id']==5)//数据已经发布，再次修改后将只通知管理员，保留发布状态
				{
					//do
				}	
				
				if(!empty($row['id']))
				{
					$data = array("error"=>$this->alertbox('warning','该数据已经在评审中，请勿重复提交'));
					$this->jsonexit($data);
					return true;
				}
				

			   $sql = "UPDATE mdversion SET changelog=?,userid=? WHERE id=?";
			   $sth = $this->db->prepare($sql);
			   $ex_changelog = $sth->execute(array($changelog,$u_id,$id));
			   
			   if($ex_changelog){
				
				$sql = "SELECT v.uuid FROM mdversion v
						LEFT JOIN mdauthor a ON a.uuid=v.uuid
						WHERE v.id=? AND a.userid=? AND a.status=1";
				$sth = $this->db->prepare($sql);
				$sth->execute(array($id,$u_id));
				$row = $sth->fetch();
				
				$sql = "INSERT INTO mdstatus (uuid,status,userid) VALUES (?,?,?)";
				$sth = $this->db->prepare($sql);
				$ex = $sth->execute(array($row['uuid'],1,$u_id));
			    
		   		if($ex)
				{
					$data = array("commited"=>1,"error"=>$this->alertbox('ok','提交成功!'));
					$this->jsonexit($data);
					return true;
				}else{
					$data = array("error"=>$this->alertbox('error','提交失败，请确认权限后重试'));
					$this->jsonexit($data);
					return true;
				}
			   }else{
				   $data = array("error"=>$this->alertbox('error','提交失败，刷新后重试'));
					$this->jsonexit($data);
					return true;
			   }
		   
		   }catch(Exception $e) {
			   $msg = "提交失败，请确认权限后重试";
			   if($this->debug>0)
			   {$msg .= $e->getMessage();}
			   $data = array("error"=>$this->alertbox('error',$msg));
			   $this->jsonexit($data);
			   return true;
		   }
	   }//发布到评审
	   
	   //与前一个版本对比
	   else if($ac == "diff")
	   {
		    $this->_helper->viewRenderer('version-diff');
			$id = $this->_request->getParam('id');
			if(empty($id) || !is_numeric($id))
			{
				$this->view->error = "参数错误";
				return true;
			}
			
			$sql = "SELECT v.uuid,md.title FROM mdversion v
					LEFT JOIN mdauthor a ON a.uuid=v.uuid
					LEFT JOIN metadata md ON v.uuid=md.uuid
					WHERE v.id=? AND a.userid=? AND a.status=1";
			$sth = $this->db->prepare($sql);
			$sth -> execute(array($id,$u_id));
			
			$row = $sth->fetch();
			
			$sql = "SELECT v.* FROM mdversion v
					WHERE v.uuid=? AND v.id<=?
					ORDER BY v.ts_created DESC
					LIMIT ?";
			$sth = $this->db->prepare($sql);
			$sth -> execute(array($row['uuid'],$id,2));
			
			$rows = $sth->fetchAll();
			
			if(count($rows)<2)
			{
				$this->view->error = "对比失败：之前没有版本可以对比";
				return true;
			}
			
			$this->view->info = $row;
			$this->view->data = $rows;
			   
	   }
	   
	   
   }// versionAction() 数据版本管理
   
   //新建元数据
   function newdataAction()
   {
	   $ac = $this->_request->getParam('ac');
	   $id = $this->_request->getParam('id');
	   $this->wdb=Zend_Db::factory($this->view->config->geonetwork);
	   
	   $auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
		}
	   
	   //在geonetwork中查看单条数据
	   if (!empty($id) && empty($ac))
	   {
	   	$this->view->url='metadata.show?id='.$id;
	   	$this->_helper->viewRenderer('newdata-view');	   	
	   }
	   //查看属于自己的所有的未提交数据列表
	   else if((empty($ac) && empty($uuid))|| $ac=='list')
	   {
			$sql = "SELECT (regexp_matches(gn.data,'<resTitle>(.*)</resTitle>'))[1] as title,gn.id,gn.uuid FROM geonetworkmetadata gn
					WHERE gn.uuid not in (select uuid from metadata) and gn.owner=?
					order by gn.id desc
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;			
	   }
	   //元数据导入
	   else if($ac=="import")
	   {
			$this->_helper->viewRenderer('newdata-import');
	   }	   	   
	   //从模板新建元数据
	   else if($ac=="add")
	   {
	   	$keywords = $this->_request->getParam('q');
			if(!empty($keywords))
			{
				$this->view->q = $keywords;
				$sql = "SELECT md.title,md.uuid,md.description,gn.id as gid FROM normalmetadata md 
					left join geonetworkmetadata gn on md.uuid=gn.uuid
					WHERE gn.id is not null";
				$search=new Search($keywords);
				$where=$search->sql_expr(array("md.title","md.description"));
				$sql.=' and '.$where;
				$sql.=" order by md.ts_created desc";
				$sth = $this->db->prepare($sql);
				$sth->execute();
				$rows = $sth->fetchAll();
		
				$paginator = Zend_Paginator::factory($rows);
				$paginator->setCurrentPageNumber($this->_getParam('page'));
				$paginator->setItemCountPerPage(10);
				$paginator->setView($this->view);
				Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
				$this->view->paginator=$paginator;
			}
			$this->_helper->viewRenderer('newdata-add');
	   }
   }
   
   //文献管理
   function literatureAction()
   {
	   $ac = $this->_request->getParam('ac');
	   $uuid = $this->_request->getParam('uuid');
	   $id = $this->_request->getParam('id');
	   
	   $auth = Zend_Auth::getInstance();
		if($auth->hasIdentity())
		{
			$user = $auth->getIdentity();
			$u_id = $user->id;
		}
	   
	   //查看单条数据的所有文献
	   if (!empty($uuid) && empty($ac))
	   {
			$sql = "SELECT md.title,md.uuid,r.id,r.reference,r.link FROM mdref mr
					LEFT JOIN metadata md ON md.uuid=mr.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					left join reference r on mr.refid=r.id
					WHERE md.title IS NOT NULL AND a.userid=? and mr.uuid=? AND a.status=1
					order by md.ts_created desc
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id,$uuid));
			$rows = $sth->fetchAll();
			@$this->view->mdtitle=$rows[0]['title'];
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;	
			$this->_helper->viewRenderer('literature-viewdata');			
	   }

	   //查看单条文献的所有数据
	   if (!empty($id) && empty($ac))
	   {
			$sql = "SELECT md.title,md.uuid,r.id,r.reference,r.link,(a.userid-?) as isauthor FROM mdref mr
					LEFT JOIN metadata md ON md.uuid=mr.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					left join reference r on mr.refid=r.id
					WHERE md.title IS NOT NULL AND mr.refid=? AND a.status=1
					order by md.ts_created desc
					";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id,$id));
			$rows = $sth->fetchAll();
			@$this->view->mdtitle=$rows[0]['reference'];
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;	
			$this->_helper->viewRenderer('literature-viewliter');			
	   }
	   	   
	   //查看所有文献列表
	   else if((empty($ac) && empty($uuid)) && empty($id))
	   {
	   	$keywords = $this->_request->getParam('q');
			$sql = "SELECT md.title,md.uuid,r.reference,r.id,mr.id as mrid FROM mdref mr
					LEFT JOIN metadata md ON md.uuid=mr.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					left join reference r on mr.refid=r.id
					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
			if(!empty($keywords))
				$this->view->q = $keywords;
			if(!empty($keywords))
			{
				$search=new Search($keywords);
				$where=$search->sql_expr(array("r.reference","md.title","md.description"));
				$sql.=' and '.$where;
			}
			$sql.=" order by md.ts_created desc";
			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(15);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;			
	   }

	   //按文献浏览
	   else if($ac=="byliter")
	   {
	   	$keywords = $this->_request->getParam('q');
			if(!empty($keywords))
				$this->view->q = $keywords;
			$sql = "SELECT count(md.uuid) as c,r.reference,r.id FROM reference r
				left join mdref mr on r.id=mr.refid
					LEFT JOIN metadata md ON md.uuid=mr.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
	
					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
			if(!empty($keywords))
			{
				$search=new Search($keywords);
				$where=$search->sql_expr(array("r.reference"));
				$sql.=' and '.$where;
			}
			$sql.=" group by r.reference,r.id";

			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
		   
			$this->_helper->viewRenderer('literature-byliter');
	   }
	   
	   //按数据浏览
	   else if($ac=="bydata")
	   {
	   	$keywords = $this->_request->getParam('q');
			if(!empty($keywords))
				$this->view->q = $keywords;
			$sql = "SELECT md.title,md.uuid,count(mr.id) as c FROM metadata md
					LEFT JOIN mdref mr ON md.uuid=mr.uuid
					LEFT JOIN mdauthor a ON md.uuid=a.uuid
					left join reference r on mr.refid=r.id
					WHERE md.title IS NOT NULL AND a.userid=? AND a.status=1";
			if(!empty($keywords))
			{
				$search=new Search($keywords);
				$where=$search->sql_expr(array("md.title","md.description"));
				$sql.=' and '.$where;
			}
			$sql.=" group by md.uuid,md.title";

			$sth = $this->db->prepare($sql);
			$sth->execute(array($u_id));
			$rows = $sth->fetchAll();
			
			$paginator = Zend_Paginator::factory($rows);
			$paginator->setCurrentPageNumber($this->_getParam('page'));
			$paginator->setItemCountPerPage(10);
			$paginator->setView($this->view);
			Zend_View_Helper_PaginationControl::setDefaultViewPartial('pagination_param.phtml');
			$this->view->paginator=$paginator;
		   
			$this->_helper->viewRenderer('literature-bydata');
	   }
	   
	   //添加文献信息
	   else if($ac == "add")
	   {
		   $this->_helper->layout->disableLayout();
		   $this->_helper->viewRenderer->setNoRender();
		   
		   $data = "";
		   try{
			   $uuid = $this->_request->getParam('uuid');
			   $ref=$this->_request->getParam('ref');
			   $reftype=$this->_request->getParam('reftype');
			   if(empty($uuid) || empty($ref) || !is_numeric($reftype))
			   {
					$data = array("error"=>"参数错误");
					$this->jsonexit($data);
					return true;
			   }
			   
			   $sql="select * from mdauthor where userid=? and uuid=? and status=1";
				$sth = $this->db->prepare($sql);
				$sth->execute(array($u_id,$uuid));
			   $row = $sth->fetch();				
			   if (empty($row))
			   {
					$data = array("error"=>$this->alertbox('warning','您不是该数据作者，无法添加对应文献信息。'));
					$this->jsonexit($data);
					return true;
			   }			   

				$sql="select id from reference where reference=?";
				$sth = $this->db->prepare($sql);
				$sth->execute(array($ref));
			   $row = $sth->fetch();				
				if (!$row) 
				{
					$sql="insert into reference (reference,link) values(?,?)";
					$sth = $this->db->prepare($sql);
					$sth->execute(array(trim($ref),''));
					$sql="select id from reference where reference=?";
					$sth = $this->db->prepare($sql);
					$sth->execute(array(trim($ref)));
					$row = $sth->fetch();
				}
				$sql="insert into mdref (uuid,refid,reftype) values(?,?,?)";
				$sth = $this->db->prepare($sql);
				$ex=$sth->execute(array($uuid,$row['id'],$reftype));

	   		if($ex)
				{
					$data = array("commited"=>1,"error"=>$this->alertbox('ok','成功添加文献!'));
					$this->jsonexit($data);
					return true;
				}else{
					$data = array("error"=>$this->alertbox('error','提交失败，请确认权限后重试'));
					$this->jsonexit($data);
					return true;
				}	   
		   }catch(Exception $e) {
			   $msg = "提交失败，请确认权限后重试";
			   if($this->debug>0)
			   {$msg .= $e->getMessage();}
			   $data = array("error"=>$this->alertbox('error',$msg));
			   $this->jsonexit($data);
			   return true;
		   }
	   }//添加文献 
	   
	   //删除某个文献
	   else if($ac=="delete")
	   {
		   $this->_helper->layout->disableLayout();
		   $this->_helper->viewRenderer->setNoRender();
		   
		   $data = "";
		   
		   $id = $this->_request->getParam('id');
		   $uuid = $this->_request->getParam('uuid');
		   if(empty($uuid) || !is_numeric($id))
		   {
				$data = array("error"=>"参数错误");
				$this->jsonexit($data);
				return true;
		   }
		   try{		   
		   $sql = "DELETE FROM mdref r
		   			USING mdauthor a
		   			WHERE r.uuid=a.uuid and r.refid=? and r.uuid=? AND a.userid=? AND a.status=1";
		   $sth = $this->db->prepare($sql);
		   $ex = $sth -> execute(array($id,$uuid,$u_id));
		   
		   if($ex)
		   {
			   $data = array("deleted"=>$id.$uuid,"error"=>$this->alertbox('ok','删除成功'));
			   $this->jsonexit($data);
				return true;
		   }else{
			   $data = array("error"=>$this->alertbox('error','删除失败，请确认权限后重试'));
			   $this->jsonexit($data);
				return true;
		   }
		   }catch(Exception $e) {
			   $msg = "删除失败，请确认权限后重试";
			   if($this->debug>0)
			   {$msg .= $e->getMessage();}
			   $data = array("error"=>$this->alertbox('error',$msg));
			   $this->jsonexit($data);
				return true;
		   }
	   }	     
   }
   
   //成为作者后的后继处理工作
   private function author_first($uuid,$author)
   {
   	$sql="insert into mdversion (xml,ts_created,uuid,changelog,userid) 
   		select x.data,m.ts_created,?,?,? from metadata m left join xml x on m.id=x.id
   		left join mdversion v on m.uuid=v.uuid
   		where m.uuid=? and v.changelog is null";
   	$sth=$this->db->prepare($sql);
   	try
   	{
   		$sth->execute(array($uuid,'初始版本 version 1.0',$author,$uuid));
   	} catch(Exception $e){
   		// do nothing here.
   		// 说明之前已经有对应数据
   	}
   	$this->wdb=Zend_Db::factory($this->view->config->geonetwork);
   	$sql="update metadata set owner=? where uuid=?";
   	$sth=$this->wdb->prepare($sql);
   	$sth->execute(array($author,$uuid));
   }   
   
   /*
    * jsonexit() 退出并返回json数据
    *
    * param array $data		要返回的JSON数据，可以是任意数组
    *
	* return JSON-response
    */
	public function jsonexit($data){
		$this->getResponse()->setHeader('Content-Type', 'application/json')->appendBody(Zend_Json::encode($data));
		return true;  
	}//jsonexit() 退出并返回json数据
   
   
   //ajax 提示框
   public function alertbox($type='',$body){
	   if($type == "error")
	   {
		   $img = '<img src="/images/alert_big_error.png" />';
		   $text = '<h4>'.$body.'</h4>';
		   return $img.$text;
	   }
	   if($type == "ok")
	   {
		   $img = '<img src="/images/alert_big_ok.png" />';
		   $text = '<h4>'.$body.'</h4>';
		   return $img.$text;
	   }
	   if($type == "warning")
	   {
		   $img = '<img src="/images/alert_big_warning.png" />';
		   $text = '<h4>'.$body.'</h4>';
		   return $img.$text;
	   }
	   if(empty($type))
	   {
		   $text = '<h4>'.$body.'</h4>';
		   return $text;
	   }
   }
}