From 28d9dcbd4dcb0c6c60fbcd0c80adc6922a37ff99 Mon Sep 17 00:00:00 2001
From: what <what-00@qq.com>
Date: Wed, 21 Jun 2023 11:07:25 +0800
Subject: [PATCH] =?UTF-8?q?[fix]=20struct=20=E4=B8=AD=E5=AD=98=E5=9C=A8sli?=
 =?UTF-8?q?ce=E5=AD=97=E6=AE=B5=E4=BC=9A=E6=8A=A5=E9=94=99=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 scan.go      | 11 +++++------
 scan_test.go |  6 ++++--
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/scan.go b/scan.go
index 0169913..e963f8e 100644
--- a/scan.go
+++ b/scan.go
@@ -4,6 +4,7 @@ import (
 	"database/sql"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"reflect"
 )
 
@@ -128,7 +129,7 @@ func sStructSlice(rows *sql.Rows, dest any) (result RowScan) {
 
 		// json 字符串 反序列化
 		for i, rv := range jFields {
-			v := rv.Interface()
+			v := rv.Addr().Interface()
 			data := *scanArgs[i].(*[]uint8)
 
 			if len(data) == 0 {
@@ -138,8 +139,6 @@ func sStructSlice(rows *sql.Rows, dest any) (result RowScan) {
 			if err := json.Unmarshal(data, &v); err != nil {
 				panic(err)
 			}
-
-			rv.Set(reflect.ValueOf(v))
 		}
 
 		if itemIsPtr {
@@ -186,6 +185,8 @@ func sStruct(rows *sql.Rows, dest any) (result RowScan) {
 					case reflect.Slice, reflect.Struct, reflect.Map:
 						scanArgs[i] = &[]uint8{}
 						jFields[i] = v.Field(f)
+
+						fmt.Printf("123 %+#v \n", v.Field(f))
 					default:
 						scanArgs[i] = v.Field(f).Addr().Interface()
 					}
@@ -200,7 +201,7 @@ func sStruct(rows *sql.Rows, dest any) (result RowScan) {
 
 			// json 字符串 反序列化
 			for i, rv := range jFields {
-				v := rv.Interface()
+				v := rv.Addr().Interface()
 				data := *scanArgs[i].(*[]uint8)
 
 				if len(data) == 0 {
@@ -210,8 +211,6 @@ func sStruct(rows *sql.Rows, dest any) (result RowScan) {
 				if err := json.Unmarshal(data, &v); err != nil {
 					panic(err)
 				}
-
-				rv.Set(reflect.ValueOf(v))
 			}
 
 			if realDest.Kind() == reflect.Ptr {
diff --git a/scan_test.go b/scan_test.go
index ea3d0ab..1d0233b 100644
--- a/scan_test.go
+++ b/scan_test.go
@@ -67,9 +67,10 @@ func TestScanJsonFieldStruct(t *testing.T) {
 		Id   int            `db:"id"`
 		Code string         `db:"code"`
 		Map  map[string]any `db:"map"`
+		Arr  []int64        `db:"arr"`
 	}{}
 
-	myConn.Select(`select 0 as id, 'test' as code, '{"a":1}' as map`, []any{}, &dest)
+	myConn.Select(`select 0 as id, 'test' as code, '{"a":1}' as map, '[3, 4]' as arr`, []any{}, &dest)
 
 	t.Log(dest)
 }
@@ -92,9 +93,10 @@ func TestScanJsonFieldStructSlice(t *testing.T) {
 		Id   int            `db:"id"`
 		Code string         `db:"code"`
 		Map  map[string]any `db:"map"`
+		Arr  []any          `db:"arr"`
 	}{}
 
-	myConn.Select(`select * from ((select 0 as id, 'test' as code, '{"a":1}' as map) union (select 1 as id, 'test1' as code, '{"a":2}' as map)) as t`, []any{}, &dest)
+	myConn.Select(`select * from ((select 0 as id, 'test' as code, '{"a":1}' as map, '[1, 2]' as arr) union (select 1 as id, 'test1' as code, '{"a":2}' as map, '[1, 2]' as arr)) as t`, []any{}, &dest)
 
 	t.Log(dest)
 }