carbon/creator.go
2021-07-28 15:18:05 +08:00

107 lines
3.3 KiB
Go
Executable File

package carbon
import (
"strconv"
"time"
)
// CreateFromTimestamp create a Carbon instance from a given timestamp, second, millisecond, microsecond and nanosecond are supported
// 从给定的时间戳创建 Carbon 实例,支持秒、毫秒、微秒和纳秒
func (c Carbon) CreateFromTimestamp(timestamp int64, timezone ...string) Carbon {
if len(timezone) == 1 {
loc, err := getLocationByTimezone(timezone[0])
c.Loc = loc
c.Error = err
}
if c.Error != nil {
return c
}
ts, count := timestamp, len(strconv.FormatInt(timestamp, 10))
if timestamp < 0 {
count -= 1
}
switch count {
case 10:
ts = timestamp
case 13:
ts = timestamp / 1e3
case 16:
ts = timestamp / 1e6
case 19:
ts = timestamp / 1e9
}
c.Time = time.Unix(ts, 0)
return c
}
// CreateFromTimestamp create a Carbon instance from a given timestamp
// 从给定的时间戳创建 Carbon 实例
func CreateFromTimestamp(timestamp int64, timezone ...string) Carbon {
return NewCarbon().CreateFromTimestamp(timestamp, timezone...)
}
// CreateFromDateTime create a Carbon instance from a given date and time
// 从给定的年月日时分秒创建 Carbon 实例
func (c Carbon) CreateFromDateTime(year int, month int, day int, hour int, minute int, second int, timezone ...string) Carbon {
if len(timezone) == 1 {
loc, err := getLocationByTimezone(timezone[0])
c.Loc = loc
c.Error = err
}
if c.Error != nil {
return c
}
c.Time = time.Date(year, time.Month(month), day, hour, minute, second, time.Now().Nanosecond(), c.Loc)
return c
}
// CreateFromDateTime create a Carbon instance from a given date and time
// 从给定的年月日时分秒创建 Carbon 实例
func CreateFromDateTime(year int, month int, day int, hour int, minute int, second int, timezone ...string) Carbon {
return NewCarbon().CreateFromDateTime(year, month, day, hour, minute, second, timezone...)
}
// CreateFromDate create a Carbon instance from a given date
// 从给定的年月日创建 Carbon 实例
func (c Carbon) CreateFromDate(year int, month int, day int, timezone ...string) Carbon {
if len(timezone) == 1 {
loc, err := getLocationByTimezone(timezone[0])
c.Loc = loc
c.Error = err
}
if c.Error != nil {
return c
}
hour, minute, second := time.Now().In(c.Loc).Clock()
c.Time = time.Date(year, time.Month(month), day, hour, minute, second, time.Now().Nanosecond(), c.Loc)
return c
}
// CreateFromDate create a Carbon instance from a given date
// 从给定的年月日创建 Carbon 实例
func CreateFromDate(year int, month int, day int, timezone ...string) Carbon {
return NewCarbon().CreateFromDate(year, month, day, timezone...)
}
// CreateFromTime create a Carbon instance from a given time
// 从给定的时分秒创建 Carbon 实例
func (c Carbon) CreateFromTime(hour int, minute int, second int, timezone ...string) Carbon {
if len(timezone) == 1 {
loc, err := getLocationByTimezone(timezone[0])
c.Loc = loc
c.Error = err
}
if c.Error != nil {
return c
}
year, month, day := time.Now().In(c.Loc).Date()
c.Time = time.Date(year, month, day, hour, minute, second, time.Now().Nanosecond(), c.Loc)
return c
}
// CreateFromTime create a Carbon instance just from a given time
// 从给定的时分秒创建 Carbon 实例
func CreateFromTime(hour int, minute int, second int, timezone ...string) Carbon {
return NewCarbon().CreateFromTime(hour, minute, second, timezone...)
}