diff --git a/application/models/ISO19115.php b/application/models/ISO19115.php
index b80f8370..fde68f13 100755
--- a/application/models/ISO19115.php
+++ b/application/models/ISO19115.php
@@ -80,7 +80,7 @@ class ISO19115
 	
 	public $mdContact;
 	public $uuid;
-	public $doi;
+	public $doi='';
 	/**
 	* 数据集标题
 	* 字符串
@@ -185,11 +185,10 @@ class ISO19115
 		}
 		
 		//save metadata into database
-		$sql="insert into metadata (uuid,title,title_en,description,citation,suppinfo,fileformat,projection,datatype,filesize,ts_created,
-			timebegin,timeend,west,south,north,east,doi) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
-		$sth=$db->prepare($sql);
 		try {
-			$sth->execute(array($this->uuid,$this->resTitle,$this->resAltTitle,$this->idAbs,$this->citation,$this->suppinfo,$this->fileformat,
+			$sql="insert into metadata (uuid,title,title_en,description,citation,suppinfo,fileformat,projection,datatype,filesize,ts_created,
+				timebegin,timeend,west,south,north,east,doi) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
+			$db->query($sql,array($this->uuid,$this->resTitle,$this->resAltTitle,$this->idAbs,$this->citation,$this->suppinfo,$this->fileformat,
 								$this->projection,$this->datatype,$this->filesize,$this->mdDateSt,$this->timebegin,$this->timeend,$this->geoBox['w'],
 								$this->geoBox['s'],$this->geoBox['n'],$this->geoBox['e'],$this->doi));
 			$id=$db->lastInsertId('metadata','id');
@@ -232,15 +231,14 @@ class ISO19115
 				$sth=$db->prepare($sql);
 				$sth->execute(array($ds['seriesName']));
 				$trow=$sth->fetch();
-				$trow=$seriestable->fetchRow($where);
 				if ($trow)
-					$sid=$trow['id'];
+					$sid=$trow->id;
 				else {
 					$sql="insert into series (name) values(?)";
 					$db->query($sql,array($ds['seriesName']));
 					$sid=$db->lastInsertId('series','id');
 				}
-				$sql="insert into dataserires (id,sid) values(?,?)";
+				$sql="insert into dataseries (id,sid) values(?,?)";
 				$db->query($sql,array($id,$sid));
 			}
 			//处理XML入库
@@ -313,7 +311,6 @@ class ISO19115
 			//数据重复插入，此处忽略所有错误
 			print $this->uuid.' has error: '.$e->getMessage().'<br />';
 		}	
-		
 	}
 	
 	function parse()