diff --git a/application/admin/controllers/DataController.php b/application/admin/controllers/DataController.php
index 4fc1dd65..90a24927 100755
--- a/application/admin/controllers/DataController.php
+++ b/application/admin/controllers/DataController.php
@@ -390,10 +390,11 @@ class Admin_DataController extends Zend_Controller_Action
 		$reply = $this->_getParam('reply');
 		$replylist = $this->_getParam('replylist');
 		$delreply = $this->_getParam('delreply');
+		$submd=$this->view->config->sub->metadata;
 		
 		if ($delete) 
 		{
-			$sql="delete from comments where id=?";
+			$sql="delete from comments where id=? and uuid in (select uuid from $submd)";
 			try {
 				$this->db->query($sql,array($delete));
 				$this->messenger->addMessage('提示信息：您已经成功删除该评论。');
@@ -465,7 +466,7 @@ class Admin_DataController extends Zend_Controller_Action
 		if($uuid)
 		{
 			$sql = "SELECT c.*,md.title,md.uuid FROM comments c
-					LEFT JOIN metadata md ON md.uuid=c.uuid
+					LEFT JOIN $submd md ON md.uuid=c.uuid
 					WHERE c.uuid=?";
 			$sth = $this->db->prepare($sql);
 			$sth->execute(array($uuid));
@@ -531,7 +532,7 @@ class Admin_DataController extends Zend_Controller_Action
 		
 		
 		$sql = "SELECT cm.*,md.title,(SELECT count(id) as counts FROM comments cms WHERE cms.reply=cm.id AND cms.reply!=0) as reply_count FROM comments cm
-				LEFT JOIN metadata md ON md.uuid=cm.uuid
+				LEFT JOIN $submd md ON md.uuid=cm.uuid
 				WHERE cm.reply=0
 				ORDER BY cm.ts_created DESC,cm.id DESC";