Change UpdatedAt to current time when doing OnConflict UpdateAll

callbacks/create.go

@@ -278,6 +278,11 @@ func ConvertToCreateValues(stmt *gorm.Statement) (values clause.Values) {
 							field.Set(rv, curTime)
 							values.Values[i][idx], _ = field.ValueOf(rv)
 						}
+					} else if field.AutoUpdateTime > 0 {
+						if _, ok := stmt.DB.InstanceGet("gorm:update_track_time"); ok {
+							field.Set(rv, curTime)
+							values.Values[0][idx], _ = field.ValueOf(rv)
+						}
 					}
 				}
 

finisher_api.go

@@ -70,7 +70,7 @@ func (db *DB) Save(value interface{}) (tx *DB) {
 		if _, ok := tx.Statement.Clauses["ON CONFLICT"]; !ok {
 			tx = tx.Clauses(clause.OnConflict{UpdateAll: true})
 		}
-		tx.callbacks.Create().Execute(tx)
+		tx.callbacks.Create().Execute(tx.InstanceSet("gorm:update_track_time", true))
 	case reflect.Struct:
 		if err := tx.Statement.Parse(value); err == nil && tx.Statement.Schema != nil {
 			for _, pf := range tx.Statement.Schema.PrimaryFields {

tests/update_test.go

@@ -606,6 +606,18 @@ func TestSave(t *testing.T) {
 		t.Fatalf("failed to find updated user")
 	}
 
+	user2 := *GetUser("save2", Config{})
+	DB.Create(&user2)
+
+	time.Sleep(time.Second)
+	user1UpdatedAt := result.UpdatedAt
+	var users = []*User{&result, &user2}
+	DB.Save(&users)
+
+	if user1UpdatedAt == result.UpdatedAt {
+		t.Fatalf("user's updated at should be changed, expects: %+v, got: %+v", user1UpdatedAt, result.UpdatedAt)
+	}
+
 	dryDB := DB.Session(&gorm.Session{DryRun: true})
 	stmt := dryDB.Save(&user).Statement
 	if !regexp.MustCompile("WHERE .id. = [^ ]+$").MatchString(stmt.SQL.String()) {