Active Support – Utility classes and Ruby extensions from Rails

Active Support is a collection of utility classes and standard library extensions that were found useful for the Rails framework. These additions reside in this package so they can be loaded as needed in Ruby projects outside of Rails.

You can read more about the extensions in the Active Support Core Extensions guide.

Download and installation

The latest version of Active Support can be installed with RubyGems:

$ gem install activesupport

Source code can be downloaded as part of the Rails project on GitHub:

github.com/rails/rails/tree/main/activesupport

License

Active Support is released under the MIT license:

opensource.org/licenses/MIT

Support

API documentation is at:

api.rubyonrails.org

Bug reports for the Ruby on Rails project can be filed here:

github.com/rails/rails/issues

Feature requests should be discussed on the rails-core mailing list here:

discuss.rubyonrails.org/c/rubyonrails-core

Namespace

Module

Class

Class Public methods

cache_format_version()

📝 Source code

# File activesupport/lib/active_support.rb, line 104
  def self.cache_format_version
    Cache.format_version
  end

🔎 See on GitHub

cache_format_version=(value)

📝 Source code

# File activesupport/lib/active_support.rb, line 108
  def self.cache_format_version=(value)
    Cache.format_version = value
  end

🔎 See on GitHub

eager_load!()

📝 Source code

# File activesupport/lib/active_support.rb, line 92
  def self.eager_load!
    super

    NumberHelper.eager_load!
  end

🔎 See on GitHub

gem_version()

Returns the currently loaded version of Active Support as a Gem::Version.

📝 Source code

# File activesupport/lib/active_support/gem_version.rb, line 5
  def self.gem_version
    Gem::Version.new VERSION::STRING
  end

🔎 See on GitHub

to_time_preserves_timezone()

📝 Source code

# File activesupport/lib/active_support.rb, line 112
  def self.to_time_preserves_timezone
    DateAndTime::Compatibility.preserve_timezone
  end

🔎 See on GitHub

to_time_preserves_timezone=(value)

📝 Source code

# File activesupport/lib/active_support.rb, line 116
  def self.to_time_preserves_timezone=(value)
    unless value
      ActiveSupport.deprecator.warn(
        "Support for the pre-Ruby 2.4 behavior of to_time has been deprecated and will be removed in Rails 7.2."
      )
    end

    DateAndTime::Compatibility.preserve_timezone = value
  end

🔎 See on GitHub

utc_to_local_returns_utc_offset_times()

📝 Source code

# File activesupport/lib/active_support.rb, line 126
  def self.utc_to_local_returns_utc_offset_times
    DateAndTime::Compatibility.utc_to_local_returns_utc_offset_times
  end

🔎 See on GitHub

utc_to_local_returns_utc_offset_times=(value)

📝 Source code

# File activesupport/lib/active_support.rb, line 130
  def self.utc_to_local_returns_utc_offset_times=(value)
    DateAndTime::Compatibility.utc_to_local_returns_utc_offset_times = value
  end

🔎 See on GitHub

version()

Returns the currently loaded version of Active Support as a Gem::Version.

📝 Source code

# File activesupport/lib/active_support/version.rb, line 7
  def self.version
    gem_version
  end

🔎 See on GitHub