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66 lines
1.3 KiB
66 lines
1.3 KiB
// Copyright 2019 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package core
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import (
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"database/sql/driver"
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"fmt"
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"time"
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)
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type NullTime time.Time
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var (
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_ driver.Valuer = NullTime{}
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)
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func (ns *NullTime) Scan(value interface{}) error {
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if value == nil {
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return nil
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}
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return convertTime(ns, value)
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}
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// Value implements the driver Valuer interface.
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func (ns NullTime) Value() (driver.Value, error) {
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if (time.Time)(ns).IsZero() {
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return nil, nil
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}
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return (time.Time)(ns).Format("2006-01-02 15:04:05"), nil
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}
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func convertTime(dest *NullTime, src interface{}) error {
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// Common cases, without reflect.
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switch s := src.(type) {
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case string:
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t, err := time.Parse("2006-01-02 15:04:05", s)
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if err != nil {
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return err
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}
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*dest = NullTime(t)
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return nil
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case []uint8:
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t, err := time.Parse("2006-01-02 15:04:05", string(s))
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if err != nil {
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return err
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}
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*dest = NullTime(t)
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return nil
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case time.Time:
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*dest = NullTime(s)
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return nil
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case nil:
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default:
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return fmt.Errorf("unsupported driver -> Scan pair: %T -> %T", src, dest)
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}
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return nil
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}
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type EmptyScanner struct {
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}
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func (EmptyScanner) Scan(src interface{}) error {
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return nil
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}
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