我正在使用clojure.java-time0.3.2版,并且我有一个TemporalAdjuster定义如下:
(def next-pay-day
(reify java.time.temporal.TemporalAdjuster
(adjustInto [this temporal]
(let [local-date (java.time.LocalDate/from temporal)
day-of-month (j/as local-date :day-of-month)
last-day-of-month (j/as (j/adjust local-date :last-day-of-month) :day-of-month)]
(cond
(= day-of-month last-day-of-month)
(j/plus local-date (j/days 14))
(< day-of-month 14)
(j/plus local-date (j/days (- 14 day-of-month)))
:else
(j/adjust local-date :last-day-of-month))))))
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哪个是这样的:
=> (require '[pto-calculator.logic.pay-periods :as p])
nil
=> (require '[java-time :as j])
nil
=> (take 4 (j/iterate j/adjust (j/local-date 2019 3 3) p/next-pay-day))
(#object[java.time.LocalDate 0x74e53020 "2019-03-03"] #object[java.time.LocalDate 0x49980a "2019-03-14"] #object[java.time.LocalDate 0x2e332a36 "2019-03-31"] #object[java.time.LocalDate 0x5e7aaec6 "2019-04-14"])
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我试图生成的今天之间的薪酬天的列表,t其中t一些LocalDate在未来。我有这个,但问题是它似乎在某些日期(4月15日)有效:
=> (take-while #(= 1 (compare (j/local-date 2019 4 15) %)) (j/iterate j/adjust (j/local-date 2019 3 3) p/next-pay-period))
(#object[java.time.LocalDate 0xc994eb6 "2019-03-03"] #object[java.time.LocalDate 0x3ec8e48 "2019-03-14"] #object[java.time.LocalDate 0x1bddd9d5 "2019-03-31"] #object[java.time.LocalDate 0x133ed931 "2019-04-14"])
; Last date is 2019-04-14 (expected)
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但不适用于其他人(4月18日):
=> (take-while #(= 1 (compare (j/local-date 2019 4 18) %)) (j/iterate j/adjust (j/local-date 2019 3 3) p/next-pay-period))
(#object[java.time.LocalDate 0x7f0ac64b "2019-03-03"] #object[java.time.LocalDate 0x1f1d3684 "2019-03-14"] #object[java.time.LocalDate 0x70415bc3 "2019-03-31"])
; Last date is 2019-03-31 (unexpected, should be 2019-04-14)
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为什么在4月18日缩短操作时间,在4月15日恢复正常工作?
比较并不总是返回1、0或-1。因此,代替:
#(= 1 (compare (j/local-date 2019 4 15) %))
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尝试:
#(pos? (compare (j/local-date 2019 4 15) %))
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