method

to_fs

v7.1.3.4 - Show latest stable - 0 notes - Class: DateTime

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What's this?

to_fs(format = :default) public

Convert to a formatted string. See Time::DATE_FORMATS for predefined formats.

This method is aliased to to_formatted_s.

Examples

datetime = DateTime.civil(2007, 12, 4, 0, 0, 0, 0)   # => Tue, 04 Dec 2007 00:00:00 +0000

datetime.to_fs(:db)            # => "2007-12-04 00:00:00"
datetime.to_formatted_s(:db)   # => "2007-12-04 00:00:00"
datetime.to_fs(:number)        # => "20071204000000"
datetime.to_fs(:short)         # => "04 Dec 00:00"
datetime.to_fs(:long)          # => "December 04, 2007 00:00"
datetime.to_fs(:long_ordinal)  # => "December 4th, 2007 00:00"
datetime.to_fs(:rfc822)        # => "Tue, 04 Dec 2007 00:00:00 +0000"
datetime.to_fs(:iso8601)       # => "2007-12-04T00:00:00+00:00"

Adding your own datetime formats to to_fs

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}") }

Show source

# File activesupport/lib/active_support/core_ext/date_time/conversions.rb, line 35
  def to_fs(format = :default)
    if formatter = ::Time::DATE_FORMATS[format]
      formatter.respond_to?(:call) ? formatter.call(self).to_s : strftime(formatter)
    else
      to_s
    end
  end

to_fs

Related methods

Examples

Adding your own datetime formats to to_fs