From f2c6388e5abcab5816ed7e04090621d3b9ba96e9 Mon Sep 17 00:00:00 2001
From: misko <misko>
Date: Mon, 14 Oct 2019 14:13:18 +0800
Subject: [PATCH] 1. fix bug : https://github.com/jinzhu/gorm/issues/2700

---
 main.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 67e5f58e..6ef031b6 100644
--- a/main.go
+++ b/main.go
@@ -124,7 +124,10 @@ func (s *DB) Close() error {
 // DB get `*sql.DB` from current connection
 // If the underlying database connection is not a *sql.DB, returns nil
 func (s *DB) DB() *sql.DB {
-	db, _ := s.db.(*sql.DB)
+	db, ok := s.db.(*sql.DB)
+        if !ok {
+          panic("can't support full GORM on currently status, maybe this is a TX instance.")
+        }
 	return db
 }