From bbeb3540794d561c23b15f10fb68b4e4aa51e700 Mon Sep 17 00:00:00 2001
From: sdghchj <sdghchj@qq.com>
Date: Thu, 31 Dec 2020 01:17:03 +0800
Subject: [PATCH] fix zero pointer

---
 schema/field.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/schema/field.go b/schema/field.go
index ecb73adc..c6d9d7a4 100644
--- a/schema/field.go
+++ b/schema/field.go
@@ -390,7 +390,13 @@ func (field *Field) setupValuerAndSetter() {
 	// ValueOf
 	isZero := func(fieldValue reflect.Value) bool{
 		isZero := fieldValue.IsZero
-		if zeroer, ok := fieldValue.Interface().(interface{ IsZero() bool }); ok {
+		if fieldValue.Kind() == reflect.Ptr && fieldValue.IsNil() {
+			if zeroer, ok := fieldValue.Interface().(interface{ IsZero() bool }); ok {
+				if _, ok := reflect.Indirect(reflect.New(fieldValue.Type().Elem())).Interface().(interface{ IsZero() bool }); !ok {
+					isZero = zeroer.IsZero
+				}
+			}
+		}else if zeroer, ok := fieldValue.Interface().(interface{ IsZero() bool }); ok {
 			isZero = zeroer.IsZero
 		}
 		return isZero()