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require 'date'
require 'active_support/inflector/methods'
require 'active_support/core_ext/date/zones'
require 'active_support/core_ext/module/remove_method'
class Date
DATE_FORMATS = {
:short => '%e %b',
:long => '%B %e, %Y',
:db => '%Y-%m-%d',
:number => '%Y%m%d',
:long_ordinal => lambda { |date|
day_format = ActiveSupport::Inflector.ordinalize(date.day)
date.strftime("%B #{day_format}, %Y") # => "April 25th, 2007"
},
:rfc822 => '%e %b %Y'
}
# Ruby 1.9 has Date#to_time which converts to localtime only.
remove_method :to_time
# Ruby 1.9 has Date#xmlschema which converts to a string without the time component.
remove_method :xmlschema
# Convert to a formatted string. See DATE_FORMATS for predefined formats.
#
# This method is aliased to <tt>to_s</tt>.
#
# 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"
#
# == Adding your own time formats to to_formatted_s
# 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] = ->(date) { date.strftime("%B #{date.day.ordinalize}") }
def to_formatted_s(format = :default)
if formatter = DATE_FORMATS[format]
if formatter.respond_to?(:call)
formatter.call(self).to_s
else
strftime(formatter)
end
else
to_default_s
end
end
alias_method :to_default_s, :to_s
alias_method :to_s, :to_formatted_s
# Overrides the default inspect method with a human readable one, e.g., "Mon, 21 Feb 2005"
def readable_inspect
strftime('%a, %d %b %Y')
end
alias_method :default_inspect, :inspect
alias_method :inspect, :readable_inspect
# 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
def to_time(form = :local)
::Time.send(form, year, month, day)
end
def xmlschema
in_time_zone.xmlschema
end
end
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