Rails - 以天,月和年为单位的持续时间

时间:2013-04-30 21:50:35

标签: ruby-on-rails ruby datetime

是否有一个Rails助手或其他Ruby方法来获取DateTime对象并转换成类似的东西?

  • “13天”(如果不到一个月)
  • “3个月”(如果不到一年)
  • “1年3个月”

我熟悉Rails built-in helpers,但正在寻找能够提供上述输出的内容。

2 个答案:

答案 0 :(得分:1)

或许distance_of_time_in_words正是您所寻找的:

distance_of_time_in_words(from_time, from_time + 50.minutes)        # => about 1 hour
distance_of_time_in_words(from_time, 50.minutes.from_now)           # => about 1 hour
distance_of_time_in_words(from_time, from_time + 15.seconds)        # => less than a minute
distance_of_time_in_words(from_time, from_time + 15.seconds, true)  # => less than 20 seconds
distance_of_time_in_words(from_time, 3.years.from_now)              # => about 3 years
distance_of_time_in_words(from_time, from_time + 60.hours)          # => 3 days
distance_of_time_in_words(from_time, from_time + 45.seconds, true)  # => less than a minute
distance_of_time_in_words(from_time, from_time - 45.seconds, true)  # => less than a minute
distance_of_time_in_words(from_time, 76.seconds.from_now)           # => 1 minute
distance_of_time_in_words(from_time, from_time + 1.year + 3.days)   # => about 1 year
distance_of_time_in_words(from_time, from_time + 3.years + 6.months) # => over 3 years
distance_of_time_in_words(from_time, from_time + 4.years + 9.days + 30.minutes + 5.seconds) # => about 4 years

答案 1 :(得分:1)

Rails helper方法是你想要的,然后你使用i18n自定义它。 看看这些答案:Rails distance_of_time_in_words returns "en, about_x_hours"

另外,看看它是如何实现的: https://github.com/rails/rails/blob/master/actionpack/lib/action_view/helpers/date_helper.rb

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