增加可视化数据的排序方式

application/module/Westdc/Visual/Visual.php

@@ -115,7 +115,8 @@ class Visual
 	{
 		$sql = "SELECT * FROM {$this->metadataTable} md
 				LEFT JOIN {$this->mainTable} v ON v.uuid = md.uuid
-				WHERE v.uuid IS NOT NULL";
+				WHERE v.uuid IS NOT NULL
+				order by v.ts_changed desc";
 		
 		$rs = $this->db->query($sql);
 		return $rs->fetchAll(\PDO::FETCH_ASSOC);