From 5bcde306ea05300ae36282eece1353ce2d82749f Mon Sep 17 00:00:00 2001
From: BaoyangChai <baoyangchai@gmail.com>
Date: Fri, 28 Jun 2019 23:37:32 +0800
Subject: [PATCH] Revert "update"

This reverts commit 2909ff336667627a34edd5c9625c1e6812a6a85f.
---
 orm/db_alias.go | 48 ++----------------------------------------------
 1 file changed, 2 insertions(+), 46 deletions(-)

diff --git a/orm/db_alias.go b/orm/db_alias.go
index 74b5ec7d..51ce10f3 100644
--- a/orm/db_alias.go
+++ b/orm/db_alias.go
@@ -105,61 +105,17 @@ func (ac *_dbCache) getDefault() (al *alias) {
 }
 
 type DB struct {
-	inTx bool
-	tx   *sql.Tx
 	*sync.RWMutex
 	DB    *sql.DB
 	stmts map[string]*sql.Stmt
 }
 
 func (d *DB) Begin() (*sql.Tx, error) {
-	if d.inTx {
-		return nil, ErrTxHasBegan
-	}
-	tx, err := d.DB.Begin()
-	if err != nil {
-		return nil, err
-	}
-	d.inTx = true
-	d.tx = tx
-	return d.tx, nil
+	return d.DB.Begin()
 }
 
 func (d *DB) BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error) {
-	if d.inTx {
-		return nil, ErrTxHasBegan
-	}
-	tx, err := d.DB.BeginTx(ctx, opts)
-	if err != nil {
-		return nil, err
-	}
-	d.inTx = true
-	d.tx = tx
-	return d.tx, nil
-}
-
-func (d *DB) Commit() error {
-	if !d.inTx {
-		return ErrTxDone
-	}
-	err := d.tx.Commit()
-	if err != nil {
-		return err
-	}
-	d.inTx = false
-	return nil
-}
-
-func (d *DB) Rollback() error {
-	if !d.inTx {
-		return ErrTxDone
-	}
-	err := d.tx.Commit()
-	if err != nil {
-		return err
-	}
-	d.inTx = false
-	return nil
+	return d.DB.BeginTx(ctx, opts)
 }
 
 func (d *DB) getStmt(query string) (*sql.Stmt, error) {