格式相对日期

Question

是否有红宝石的宝石，将格式化相对于当前时间的日期？我想要输出如“明天下午5点”，“下周四下午5:15”，我不太关心确切的输出，只要它是自然语言的相对日期即可

Answer 1

如果您有导轨，我认为ActionView::Helpers::DateHelper#distance_of_time_in_words有助于这一点。

require 'rubygems' 
require 'action_view' 
include ActionView::Helpers::DateHelper 

from_time = Time.now 
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)    # => over 3 years 
distance_of_time_in_words(from_time, from_time + 60.hours)   # => about 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 + 4.years + 9.days + 30.minutes + 5.seconds) # => over 4 years 

to_time = Time.now + 6.years + 19.days 
distance_of_time_in_words(from_time, to_time, true)  # => over 6 years 
distance_of_time_in_words(to_time, from_time, true)  # => over 6 years 
distance_of_time_in_words(Time.now, Time.now)   # => less than a minute 

在相对于当前时间的情况下，使用distance_of_time_in_words_to_now代替distance_of_time_in_words。

如果您的应用程序是基于导轨的，则只需使用distance_of_time_in_words,distance_of_time_in_words_to_now,time_ago_in_words即可。

Answer 2

尝试宝石“慢性”

它完全符合你的要求。