ActiveRuby 2.3.4 Beta Documentation

ActiveSupport

The JSON gem adds a few modules to Ruby core classes containing :to_json definition, overwriting their default behavior. That said, we need to define the basic to_json method in all of them, otherwise they will always use to_json gem implementation, which is backwards incompatible in several cases (for instance, the JSON implementation for Hash does not work) with inheritance and consequently classes as ActiveSupport::OrderedHash cannot be serialized to json.

On the other hand, we should avoid conflict with ::JSON.{generate,dump}(obj). Unfortunately, the JSON gem's encoder relies on its own to_json implementation to encode objects. Since it always passes a ::JSON::State object as the only argument to to_json, we can detect that and forward the calls to the original to_json method.

It should be noted that when using ::JSON.{generate,dump} directly, ActiveSupport's encoder is bypassed completely. This means that as_json won't be invoked and the JSON gem will simply ignore any options it does not natively understand. This also means that ::JSON.{generate,dump} should give exactly the same results with or without active support.

Namespace

MODULE ActiveSupport::Autoload
MODULE ActiveSupport::Benchmarkable
MODULE ActiveSupport::Cache
MODULE ActiveSupport::Callbacks
MODULE ActiveSupport::Concern
MODULE ActiveSupport::Concurrency
MODULE ActiveSupport::Configurable
MODULE ActiveSupport::Dependencies
MODULE ActiveSupport::DescendantsTracker
MODULE ActiveSupport::Gzip
MODULE ActiveSupport::Inflector
MODULE ActiveSupport::JSON
MODULE ActiveSupport::LazyLoadHooks
MODULE ActiveSupport::Multibyte
MODULE ActiveSupport::Notifications
MODULE ActiveSupport::NumberHelper
MODULE ActiveSupport::NumericWithFormat
MODULE ActiveSupport::PerThreadRegistry
MODULE ActiveSupport::RangeWithFormat
MODULE ActiveSupport::Rescuable
MODULE ActiveSupport::SecurityUtils
MODULE ActiveSupport::TaggedLogging
MODULE ActiveSupport::Testing
MODULE ActiveSupport::VERSION
MODULE ActiveSupport::XmlMini
MODULE ActiveSupport::XmlMini_LibXMLSAX
MODULE ActiveSupport::XmlMini_Nokogiri
MODULE ActiveSupport::XmlMini_NokogiriSAX
CLASS ActiveSupport::ArrayInquirer
CLASS ActiveSupport::BacktraceCleaner
CLASS ActiveSupport::CachingKeyGenerator
CLASS ActiveSupport::Deprecation
CLASS ActiveSupport::DeprecationException
CLASS ActiveSupport::Duration
CLASS ActiveSupport::EventedFileUpdateChecker
CLASS ActiveSupport::ExecutionWrapper
CLASS ActiveSupport::Executor
CLASS ActiveSupport::FileUpdateChecker
CLASS ActiveSupport::HashWithIndifferentAccess
CLASS ActiveSupport::InheritableOptions
CLASS ActiveSupport::KeyGenerator
CLASS ActiveSupport::LogSubscriber
CLASS ActiveSupport::Logger
CLASS ActiveSupport::MessageEncryptor
CLASS ActiveSupport::MessageVerifier
CLASS ActiveSupport::OrderedHash
CLASS ActiveSupport::OrderedOptions
CLASS ActiveSupport::ProxyObject
CLASS ActiveSupport::Railtie
CLASS ActiveSupport::Reloader
CLASS ActiveSupport::SafeBuffer
CLASS ActiveSupport::StringInquirer
CLASS ActiveSupport::Subscriber
CLASS ActiveSupport::TestCase
CLASS ActiveSupport::TimeWithZone
CLASS ActiveSupport::TimeZone
CLASS ActiveSupport::XMLConverter

Methods

G

gem_version

V

version

Class Public methods

gem_version() Link

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

Source: show | on GitHub

# File activesupport/lib/active_support/gem_version.rb, line 3
def self.gem_version
  Gem::Version.new VERSION::STRING
end

version() Link

Returns the version of the currently loaded ActiveSupport as a Gem::Version

Source: show | on GitHub

# File activesupport/lib/active_support/version.rb, line 5
def self.version
  gem_version
end

Module ActiveSupport