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package utils
import (
"database/sql/driver"
"fmt"
"strings"
"time"
)
func GetZoreTimeLocal(t time.Time) time.Time {
t = t.Local()
return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.Local)
}
func GetWeekFirstDayLocal(t time.Time) time.Time {
t = t.Local()
return time.Date(t.Year(), t.Month(), t.Day()-int(t.Weekday()), 0, 0, 0, 0, time.Local)
}
func GetMonthFirstDayLocal(t time.Time) time.Time {
t = t.Local()
return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.Local)
}
// func GetZoreTime(t time.Time) time.Time {
// return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.Local)
// }
// func GetWeekFirstDay(t time.Time) time.Time {
// return time.Date(t.Year(), t.Month(), t.Day()-int(t.Weekday()), 0, 0, 0, 0, time.Local)
// }
// func GetMonthFirstDay(t time.Time) time.Time {
// return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.Local)
// }
func GetZoreTimeLocation(t time.Time, location *time.Location) time.Time {
t = t.In(location)
return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.Local)
}
func GetWeekFirstDayLocation(t time.Time, location *time.Location) time.Time {
t = t.In(location)
return time.Date(t.Year(), t.Month(), t.Day()-int(t.Weekday()), 0, 0, 0, 0, time.Local)
}
func GetMonthFirstDayLocation(t time.Time, location *time.Location) time.Time {
t = t.In(location)
return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.Local)
}
var MonthDay = []int{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
func GetMonthLen(t time.Time) int {
t = t.Local()
month := int(t.Month())
if month == 2 {
year := t.Year()
// 计算是平年还是闰年
if (year%4 == 0 && year%100 != 0) || year%400 == 0 {
// 得出2月的天数
return 29
}
// 得出2月的天数
return 28
}
return MonthDay[month-1]
}
func CmpAge(birthday time.Time) int {
return time.Now().Year() - birthday.Year()
}
type LocalTime time.Time
func (t LocalTime) Value() (driver.Value, error) {
var zeroTime time.Time
tlt := time.Time(t)
if tlt.UnixNano() == zeroTime.UnixNano() {
return nil, nil
}
return tlt, nil
}
func (t *LocalTime) Scan(v interface{}) error {
if value, ok := v.(time.Time); ok {
*t = LocalTime(value)
return nil
}
return fmt.Errorf("can not convert %v to timestamp", v)
}
func (t *LocalTime) String() string {
// 如果时间 null 那么我们需要把返回的值进行修改
if t == nil || t.IsZero() {
return ""
}
return fmt.Sprintf("%s", time.Time(*t).Format("2006-01-02 15:04:05"))
}
func (t *LocalTime) IsZero() bool {
return time.Time(*t).IsZero()
}
func (t *LocalTime) UnmarshalJSON(data []byte) error {
if string(data) == "null" {
return nil
}
var err error
//前端接收的时间字符串
str := string(data)
//去除接收的str收尾多余的"
timeStr := strings.Trim(str, "\"")
t1, err := time.ParseInLocation("2006-01-02 15:04:05", timeStr, time.Local)
*t = LocalTime(t1)
return err
}
func (t LocalTime) MarshalJSON() ([]byte, error) {
tTime := time.Time(t)
// 如果时间值是空或者0值 返回为null 如果写空字符串会报错
if &t == nil || t.IsZero() {
return []byte("null"), nil
}
return []byte(fmt.Sprintf("\"%s\"", tTime.Format("2006-01-02 15:04:05"))), nil
}
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