From a4f5c42739f53ee7cd04c9217696c955f22173de Mon Sep 17 00:00:00 2001
From: wlx <wangliangxu@lzb.ac.cn>
Date: Tue, 22 Oct 2013 14:42:10 +0000
Subject: [PATCH] fix sql error

---
 application/module/Reference/Reference.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/application/module/Reference/Reference.php b/application/module/Reference/Reference.php
index 6fd1eb0c..01c4b54f 100644
--- a/application/module/Reference/Reference.php
+++ b/application/module/Reference/Reference.php
@@ -233,7 +233,7 @@ class Reference
 	public function fetchTodoReferences()
 	{
 		$wheresql = array();
-		$wheresql[]=" r.uuid is not null ";
+		$wheresql[]=" ref.id not in (select distinct refid from mdref) ";
 		if(!empty($this->keyword))
 		{
 			$wheresql[] = " (ref.title LIKE '%{$this->keyword}%' OR ref.reference LIKE '%{$this->keyword}%') ";
@@ -252,7 +252,7 @@ class Reference
 			$order = "ref.{$this->order} {$this->sort}";
 		}
 		
-		$sql="select distinct ref.* from mdref r left join {$this->table->reference} ref on r.refid=ref.id
+		$sql="select distinct ref.* from {$this->table->reference} ref 
 			$wheresql
 			ORDER BY $order";
 		$rs=$this->db->query($sql);