Ruby-on-rails 将日期时间转换为月、日和年？
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Transforming Datetime into month, day and year?
提问by bgadoci
I can't seem to find this and I feel like it should be easy. In Ruby on Rails, how do I take:
我似乎找不到这个，我觉得这应该很容易。在 Ruby on Rails 中，我该怎么做：
2010-06-14 19:01:00 UTC
and turn it into
并把它变成
June 14th, 2010
Can I not just use a helper in the view?
我不能只在视图中使用助手吗？
回答by Salil
I don't know for
我不知道
June 14th, 2010
But if you want
但如果你想
June 14, 2010
Ref how do i get name of the month in ruby on Rails?or this
参考 如何在 ruby on Rails 中获取月份名称？或者这个
Just do
做就是了
@date = Time.now
@date.strftime("%B %d, %Y")
And for suffix use following
对于后缀使用以下
@date.strftime("%B #{@date.day.ordinalize}, %Y") # >>> Gives `June 18th, 2010`
回答by Zakaria
Time and date formats in rails:
rails 中的时间和日期格式：
Date
日期
====
====
db:‘%Y-%m-%d' 2008-08-20
long_ordinal:‘&proc' August 20th, 2008
long:‘%B %e, %Y' August 20, 2008
rfc822:‘%e %b %Y' 20 Aug 2008
number:‘%Y%m%d' 20080820
short:‘%e %b' 20 Aug
DateTime
约会时间
====
====
db:‘%Y-%m-%d' 2008-08-20 16:56:21
long_ordinal:‘&proc' August 20th, 2008 16:56
long:‘%B %e, %Y' August 20, 2008 16:56
rfc822:‘%e %b %Y' Wed, 20 Aug 2008 16:56:21 -0600
number:‘%Y%m%d' 20080820165621
short:‘%e %b' 20 Aug 16:56
Time
时间
====
====
db:‘%Y-%m-%d %H:%M:%S' 2008-08-20 16:56:21
long_ordinal:‘&proc' August 20th, 2008 16:56
long:‘%B %d, %Y %H:%M' August 20, 2008 16:56
rfc822:‘%a, %d %b %Y %H:%M:%S %z' Wed, 20 Aug 2008 16:56:21 -0600
short:‘%d %b %H:%M' 20 Aug 16:56
number:‘%Y%m%d%H%M%S' 20080820165621
time:‘%H:%M' 16:56
for example:
例如：
<%= news.created_at.strftime("%B %d, %Y %H:%M") %>
Thanks http://onrails.org/2008/08/20/what-are-all-the-rails-date-formats.html
谢谢http://onrails.org/2008/08/20/what-are-all-the-rails-date-formats.html
回答by Jarrod
For future reference: Rails date time formats
供将来参考：Rails 日期时间格式
回答by Alex V
You don't need to save it in a variable.
您不需要将其保存在变量中。
Time.now.strftime("%Y-%m-%d") # 2013-01-08
回答by glenn Hymanman
Needs the Time module for Time.parseand ActiveSupport for Integer#ordinalize:
需要 Time 模块Time.parse和 ActiveSupport Integer#ordinalize：
require 'time'
require 'active_support'
input = '2010-06-14 19:01:00 UTC'
t = Time.parse(input)
date = "%s %s, %d" % [t.strftime("%B"), t.day.ordinalize, t.year]
# => "June 14th, 2010"
回答by edavey
Just the other day there was a similar question. In my answer how do I get name of the month in ruby on Rails?I showed how you can add a custom to_sdefinition in your config/environment.rbfile.
就在前几天，有一个类似的问题。在我的回答中，如何在 ruby on Rails 中获取月份名称？我展示了如何to_s在config/environment.rb文件中添加自定义定义。
ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.merge!(
:my_own_long_date_format => "%B %d, %Y")
Now you can call Time.now.to_s(:my_own_long_date_format)from any view to get:
现在您可以Time.now.to_s(:my_own_long_date_format)从任何视图调用以获取：
June 15, 2010
回答by Maxime Boué
Update that is working in Rails 5 :
在 Rails 5 中工作的更新：
<%= l @user.created_at, format: :short %>
Internationalize :
国际化：
<%= I18n.l( @user.created_at, format: :short) %>
You can use :long instead of :short
您可以使用 :long 而不是 :short
