From 2a944bca88b34e3cab1fa23347dd1bfc035f00bc Mon Sep 17 00:00:00 2001
From: Artemij Shepelev <ffelian@gmail.com>
Date: Tue, 28 Aug 2018 01:44:44 +0300
Subject: [PATCH] fix race with defaultTableName field (again)

---
 model_struct.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/model_struct.go b/model_struct.go
index 8506fe87..8bd945bb 100644
--- a/model_struct.go
+++ b/model_struct.go
@@ -24,11 +24,16 @@ type ModelStruct struct {
 	PrimaryFields    []*StructField
 	StructFields     []*StructField
 	ModelType        reflect.Type
+
 	defaultTableName string
+	l sync.Mutex
 }
 
 // TableName returns model's table name
 func (s *ModelStruct) TableName(db *DB) string {
+	s.l.Lock()
+	defer s.l.Unlock()
+
 	if s.defaultTableName == "" && db != nil && s.ModelType != nil {
 		// Set default table name
 		if tabler, ok := reflect.New(s.ModelType).Interface().(tabler); ok {