teambition/rrule-go

2.29 Not present

herculewyy opened this issue · 3 comments

herculewyy commented 
    var dd = "2023-01-30 12:45:23"

loc, _ := time.LoadLocation("Local")

dt, _ := time.ParseInLocation("2006-01-02 15:04:05", dd, loc)

r, _ = rrule.NewRRule(rrule.ROption{
	Freq: rrule.MONTHLY,
	//Bymonthday: []int{},
	//	Bymonth:    []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}, // 取哪一月的数据
	Interval: 1,
	Until:    time.Now().AddDate(0, 5, 0),
	Dtstart:  dt,
})

//set.ExDate(time.Now())
for _, t2 := range r.All() {
	fmt.Println(t2.Format("2006-01-02 15:04:05"))
}

result:
2023-01-30 12:45:23
2023-03-30 12:45:23
2023-04-30 12:45:23
2023-05-30 12:45:23
2023-06-30 12:45:23

2023-02-28 12:45:23 How to achieve？

thank you

herculewyy commented

Starting from 1.31, the frequency is every month, then I want to get the last day of February (2.28 or 2.29)

while-loop commented

Feb 29, 2023 is not a real date

Maybe something along the lines of the 30th of every month or last day.

Probably done with a ruleset

KaiChen1008 commented

the following code works for me

func printTime(ts []time.Time) {
	for _, t := range ts {
		fmt.Println(t)
	}
}

func main() {
	loc, _ := time.LoadLocation("Local")
	curr := time.Date(2024, 1, 28, 12, 45, 23, 0, loc)
	r, _ := rrule.NewRRule(rrule.ROption{
		Freq:       rrule.MONTHLY,
		Interval:   1,
		Bymonthday: []int{-1},
		Dtstart:    curr,
		Until:      curr.AddDate(0, 5, 0),
	})

	printTime(r.All())
}

output:

2024-01-31 12:45:23 +0800 CST
2024-02-29 12:45:23 +0800 CST
2024-03-31 12:45:23 +0800 CST
2024-04-30 12:45:23 +0800 CST
2024-05-31 12:45:23 +0800 CST
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