Converting datetimes to formatted strings, dates, and times.
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"
# File lib/active_support/core_ext/date_time/conversions.rb, line 58 def formatted_offset(colon = true, alternate_utc_string = nil) utc? && alternate_utc_string || utc_offset.to_utc_offset_s(colon) end
Overrides the default inspect method with a human readable one, e.g., "Mon, 21 Feb 2005 14:30:00 +0000"
# File lib/active_support/core_ext/date_time/conversions.rb, line 63 def readable_inspect to_s(:rfc822) end
Converts self to a Ruby Date object; time portion is discarded
# File lib/active_support/core_ext/date_time/conversions.rb, line 68 def to_date ::Date.new(year, month, day) end
To be able to keep Times, Dates and DateTimes interchangeable on conversions
# File lib/active_support/core_ext/date_time/conversions.rb, line 79 def to_datetime self end
Converts self to a floating-point number of seconds since the Unix epoch
# File lib/active_support/core_ext/date_time/conversions.rb, line 89 def to_f seconds_since_unix_epoch.to_f end
Convert to a formatted string. See Time::DATE_FORMATS for predefined formats.
This method is aliased to to_s.
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"
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}") }
# File lib/active_support/core_ext/date_time/conversions.rb, line 48 def to_formatted_s(format = :default) return to_default_s unless formatter = ::Time::DATE_FORMATS[format] formatter.respond_to?(:call) ? formatter.call(self).to_s : strftime(formatter) end
Converts self to an integer number of seconds since the Unix epoch
# File lib/active_support/core_ext/date_time/conversions.rb, line 94 def to_i seconds_since_unix_epoch.to_i end
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
# File lib/active_support/core_ext/date_time/conversions.rb, line 74 def to_time self.offset == 0 ? ::Time.utc_time(year, month, day, hour, min, sec) : self end
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