From 013a2e0d507ed31d78fbdc2f88cfceab2be5b802 Mon Sep 17 00:00:00 2001
From: Jianxuan Li <la5c@qq.com>
Date: Fri, 1 May 2015 15:16:28 +0800
Subject: [PATCH] add new feature

---
 Westdc/Db/Dbh.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Westdc/Db/Dbh.php b/Westdc/Db/Dbh.php
index b518729..431a381 100644
--- a/Westdc/Db/Dbh.php
+++ b/Westdc/Db/Dbh.php
@@ -2,6 +2,7 @@
 namespace Westdc\Db;
 
 use Westdc\Helpers\Assist as view;
+use Westdc\Helpers\Assist;
 
 class Dbh
 {
@@ -81,7 +82,7 @@ class Dbh
 		
 		foreach($data as $k=>$v)
 		{
-			if(is_int($v) || is_float($v) || is_bool($v))
+			if(is_int($v) || is_float($v) || is_bool($v) || $v === "NULL")
 			{
 				$ups[] = '"'.$k.'"='.$v;
 			}else{
@@ -122,6 +123,7 @@ class Dbh
 			}
 		}else{
             $sql = "UPDATE \"".$table."\" SET $fields $wheresql RETURNING id";
+            //exit($sql);
             try{
                 $sth = $this->db->prepare($sql);
                 if($sth->execute())
@@ -136,7 +138,7 @@ class Dbh
                 {
                     return false;
                 }else{
-                    echo view::Dump('Caught exception: '.  $e->getMessage(). "\n"."SQL:".$sql,false);
+                    echo Assist::Dump('Caught exception: '.  $e->getMessage(). "\n"."SQL:".$sql,false);
                 }
             }
 		}