Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Tree: 6372d23616
Fetching contributors…

Cannot retrieve contributors at this time

104 lines (90 sloc) 4.247 kB
require 'active_support/inflector/methods'
require 'active_support/core_ext/time/conversions'
require 'active_support/core_ext/date_time/calculations'
require 'active_support/values/time_zone'
class DateTime
# Ruby 1.9 has DateTime#to_time which internally relies on Time. We define our own #to_time which allows
# DateTimes outside the range of what can be created with Time.
remove_method :to_time if instance_methods.include?(:to_time)
# Convert to a formatted string. See Time::DATE_FORMATS for predefined formats.
#
# This method is aliased to <tt>to_s</tt>.
#
# === Examples
# datetime = DateTime.civil(2007, 12, 4, 0, 0, 0, 0) # => Tue, 04 Dec 2007 00:00:00 +0000
#
# datetime.to_formatted_s(:db) # => "2007-12-04 00:00:00"
# datetime.to_s(:db) # => "2007-12-04 00:00:00"
# datetime.to_s(:number) # => "20071204000000"
# datetime.to_formatted_s(:short) # => "04 Dec 00:00"
# datetime.to_formatted_s(:long) # => "December 04, 2007 00:00"
# datetime.to_formatted_s(:long_ordinal) # => "December 4th, 2007 00:00"
# datetime.to_formatted_s(:rfc822) # => "Tue, 04 Dec 2007 00:00:00 +0000"
#
# == Adding your own datetime formats to to_formatted_s
# DateTime formats are shared with Time. You can add your own to the
# Time::DATE_FORMATS hash. Use the format name as the hash key and
# either a strftime string or Proc instance that takes a time or
# datetime argument as the value.
#
# # config/initializers/time_formats.rb
# Time::DATE_FORMATS[:month_and_year] = "%B %Y"
# Time::DATE_FORMATS[:short_ordinal] = lambda { |time| time.strftime("%B #{time.day.ordinalize}") }
def to_formatted_s(format = :default)
if formatter = ::Time::DATE_FORMATS[format]
formatter.respond_to?(:call) ? formatter.call(self).to_s : strftime(formatter)
else
to_default_s
end
end
alias_method :to_default_s, :to_s unless (instance_methods(false) & [:to_s, 'to_s']).empty?
alias_method :to_s, :to_formatted_s
# Returns the +utc_offset+ as an +HH:MM formatted string. Examples:
#
# datetime = DateTime.civil(2000, 1, 1, 0, 0, 0, Rational(-6, 24))
# datetime.formatted_offset # => "-06:00"
# datetime.formatted_offset(false) # => "-0600"
def formatted_offset(colon = true, alternate_utc_string = nil)
utc? && alternate_utc_string || ActiveSupport::TimeZone.seconds_to_utc_offset(utc_offset, colon)
end
# Overrides the default inspect method with a human readable one, e.g., "Mon, 21 Feb 2005 14:30:00 +0000".
def readable_inspect
to_s(:rfc822)
end
alias_method :default_inspect, :inspect
alias_method :inspect, :readable_inspect
# Converts self to a Ruby Date object; time portion is discarded.
def to_date
::Date.new(year, month, day)
end unless instance_methods(false).include?(:to_date)
# Attempts to convert self to a Ruby Time object; returns self if out of range of Ruby Time class.
# If self has an offset other than 0, self will just be returned unaltered, since there's no clean way to map it to a Time.
def to_time
self.offset == 0 ? ::Time.utc_time(year, month, day, hour, min, sec, sec_fraction * (RUBY_VERSION < '1.9' ? 86400000000 : 1000000)) : self
end
# To be able to keep Times, Dates and DateTimes interchangeable on conversions.
def to_datetime
self
end unless instance_methods(false).include?(:to_datetime)
def self.civil_from_format(utc_or_local, year, month=1, day=1, hour=0, min=0, sec=0)
offset = utc_or_local.to_sym == :local ? local_offset : 0
civil(year, month, day, hour, min, sec, offset)
end
# Converts datetime to an appropriate format for use in XML.
def xmlschema
strftime("%Y-%m-%dT%H:%M:%S%Z")
end unless instance_methods(false).include?(:xmlschema)
# Converts self to a floating-point number of seconds since the Unix epoch.
def to_f
seconds_since_unix_epoch.to_f
end
# Converts self to an integer number of seconds since the Unix epoch.
def to_i
seconds_since_unix_epoch.to_i
end
private
def seconds_since_unix_epoch
seconds_per_day = 86_400
(self - ::DateTime.civil(1970)) * seconds_per_day
end
end
Jump to Line
Something went wrong with that request. Please try again.