Module | ActiveSupport::CoreExtensions::Date::Conversions |
In: |
lib/active_support/core_ext/date/conversions.rb
|
Converting dates to formatted strings, times, and datetimes.
DATE_FORMATS | = | { :short => "%e %b", :long => "%B %e, %Y", :db => "%Y-%m-%d", :number => "%Y%m%d", :long_ordinal => lambda { |date| date.strftime("%B #{date.day.ordinalize}, %Y") }, # => "April 25th, 2007" :rfc822 => "%e %b %Y" |
A method to keep Time, Date and DateTime instances interchangeable on conversions. In this case, it simply returns self.
Converts a Date instance to a DateTime, where the time is set to the beginning of the day and UTC offset is set to 0.
date = Date.new(2007, 11, 10) # => Sat, 10 Nov 2007 date.to_datetime # => Sat, 10 Nov 2007 00:00:00 0000
Convert to a formatted string. See DATE_FORMATS for predefined formats.
This method is aliased to to_s.
date = Date.new(2007, 11, 10) # => Sat, 10 Nov 2007 date.to_formatted_s(:db) # => "2007-11-10" date.to_s(:db) # => "2007-11-10" date.to_formatted_s(:short) # => "10 Nov" date.to_formatted_s(:long) # => "November 10, 2007" date.to_formatted_s(:long_ordinal) # => "November 10th, 2007" date.to_formatted_s(:rfc822) # => "10 Nov 2007"
You can add your own formats to the Date::DATE_FORMATS hash. Use the format name as the hash key and either a strftime string or Proc instance that takes a date argument as the value.
# config/initializers/time_formats.rb Date::DATE_FORMATS[:month_and_year] = "%B %Y" Date::DATE_FORMATS[:short_ordinal] = lambda { |date| date.strftime("%B #{date.day.ordinalize}") }
Converts a Date instance to a Time, where the time is set to the beginning of the day. The timezone can be either :local or :utc (default :local).
date = Date.new(2007, 11, 10) # => Sat, 10 Nov 2007 date.to_time # => Sat Nov 10 00:00:00 0800 2007 date.to_time(:local) # => Sat Nov 10 00:00:00 0800 2007 date.to_time(:utc) # => Sat Nov 10 00:00:00 UTC 2007