Simple and Powerful ORM for Go, support mysql,postgres,tidb,sqlite3,sqlite,mssql,oracle,cockroach
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// Copyright 2021 The Xorm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package convert
import (
// Interface2Interface converts interface of pointer as interface of value
func Interface2Interface(userLocation *time.Location, v interface{}) (interface{}, error) {
if v == nil {
return nil, nil
switch vv := v.(type) {
case *int64:
return *vv, nil
case *int8:
return *vv, nil
case *sql.NullString:
return vv.String, nil
case *sql.RawBytes:
if len([]byte(*vv)) > 0 {
return []byte(*vv), nil
return nil, nil
case *sql.NullInt32:
return vv.Int32, nil
case *sql.NullInt64:
return vv.Int64, nil
case *sql.NullFloat64:
return vv.Float64, nil
case *sql.NullBool:
if vv.Valid {
return vv.Bool, nil
return nil, nil
case *sql.NullTime:
if vv.Valid {
return vv.Time.In(userLocation).Format("2006-01-02 15:04:05"), nil
return "", nil
return "", fmt.Errorf("convert assign string unsupported type: %#v", vv)