From e0d310029489f90ce52b74fc27ab30de46314154 Mon Sep 17 00:00:00 2001
From: Jinzhu <wosmvp@gmail.com>
Date: Sat, 16 Nov 2013 14:15:33 +0800
Subject: [PATCH] Should copy DB when save, update, delete

---
 main.go    | 13 +++++++------
 private.go |  7 ++++---
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/main.go b/main.go
index 7978eb4b..95ce8f4f 100644
--- a/main.go
+++ b/main.go
@@ -42,7 +42,7 @@ func (s *DB) SetLogger(l Logger) {
 }
 
 func (s *DB) LogMode(b bool) {
-	s.parent.logMode = b
+	s.logMode = b
 }
 
 func (s *DB) SingularTable(b bool) {
@@ -132,17 +132,17 @@ func (s *DB) Update(attrs ...interface{}) *DB {
 }
 
 func (s *DB) Updates(values interface{}, ignore_protected_attrs ...bool) *DB {
-	s.do(s.data).begin().updateAttrs(values, ignore_protected_attrs...).update().commit_or_rollback()
+	s.clone().do(s.data).begin().updateAttrs(values, ignore_protected_attrs...).update().commit_or_rollback()
 	return s
 }
 
 func (s *DB) Save(value interface{}) *DB {
-	s.do(value).begin().save().commit_or_rollback()
+	s.clone().do(value).begin().save().commit_or_rollback()
 	return s
 }
 
 func (s *DB) Delete(value interface{}) *DB {
-	s.do(value).begin().delete().commit_or_rollback()
+	s.clone().do(value).begin().delete().commit_or_rollback()
 	return s
 }
 
@@ -178,8 +178,9 @@ func (s *DB) Table(name string) *DB {
 
 // Debug
 func (s *DB) Debug() *DB {
-	s.logMode = true
-	return s
+	c := s.clone()
+	c.logMode = true
+	return c
 }
 
 // Transactions
diff --git a/private.go b/private.go
index b46c8ab8..c76b544c 100644
--- a/private.go
+++ b/private.go
@@ -6,14 +6,15 @@ import (
 )
 
 func (s *DB) clone() *DB {
-	db := &DB{db: s.db, parent: s.parent}
+	db := DB{db: s.db, parent: s.parent, logMode: s.logMode, data: s.data, Error: s.Error}
+
 	if s.parent.search == nil {
 		db.search = &search{}
 	} else {
 		db.search = s.parent.search.clone()
 	}
-	db.search.db = db
-	return db
+	db.search.db = &db
+	return &db
 }
 
 func (s *DB) do(data interface{}) *Do {