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gmt.go
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gmt.go
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package datetime
import (
"database/sql/driver"
"fmt"
"time"
)
/*
@File: gmt.go
@Author: khaosles
@Time: 2023/8/13 09:53
@Desc:
*/
type GMT time.Time
var timeLayout = "2006-01-02 15:04:05"
func (gmt *GMT) UnmarshalJSON(data []byte) error {
// 加载上海时区
location, _ := time.LoadLocation("Asia/Shanghai")
t, err := time.ParseInLocation(`"`+timeLayout+`"`, string(data), location)
if err != nil {
return err
}
*gmt = GMT(t)
return nil
}
func (gmt GMT) MarshalJSON() ([]byte, error) {
t := time.Time(gmt)
formatted := fmt.Sprintf(`"%s"`, t.Format(timeLayout))
return []byte(formatted), nil
}
func (gmt GMT) Value() (driver.Value, error) {
return time.Time(gmt), nil
}
func (gmt GMT) Scan(value interface{}) error {
if value == nil {
gmt = GMT(time.Time{})
return nil
}
if t, ok := value.(time.Time); ok {
gmt = GMT(t)
return nil
}
return fmt.Errorf("failed to scan CustomTime value")
}
func (gmt GMT) Add(duration time.Duration) GMT {
return GMT(time.Time(gmt).Add(duration))
}
func (gmt GMT) Sub(gmt2 GMT) time.Duration {
return time.Time(gmt).Sub(time.Time(gmt2))
}
func (gmt GMT) Format(layout string) string {
return time.Time(gmt).Format(layout)
}