CHANGELOG.md

Rails 4.0.0 (unreleased)

• #as_json isolates options when encoding a hash. Fix #8182

  Yves Senn

• Deprecate Hash#diff in favor of MiniTest's #diff. Steve Klabnik

• Kernel#capture can catch output from subprocesses Dmitry Vorotilin

• to_xml conversions now use builder's tag! method instead of explicit invocation of method_missing.

  Nikita Afanasenko

• Fixed timezone mapping of the Solomon Islands. Steve Klabnik

• Make callstack attribute optional in ActiveSupport::Deprecation::Reporting methods warn and deprecation_warning

  Alexey Gaziev

• Implement HashWithIndifferentAccess#replace so key? works correctly. David Graham

• Handle the possible Permission Denied errors atomic.rb might trigger due to its chown and chmod calls. Daniele Sluijters

• Hash#extract! returns only those keys that present in the receiver.

  {:a => 1, :b => 2}.extract!(:a, :x) # => {:a => 1}
  

  Mikhail Dieterle

• Hash#extract! returns the same subclass, that the receiver is. I.e. HashWithIndifferentAccess#extract! returns HashWithIndifferentAccess instance.

  Mikhail Dieterle

• Optimize ActiveSupport::Cache::Entry to reduce memory and processing overhead. Brian Durand

• Tests tag the Rails log with the current test class and test case:

  [SessionsControllerTest] [test_0002_sign in] Processing by SessionsController#create as HTML
  [SessionsControllerTest] [test_0002_sign in] ...
  

  Jeremy Kemper

• Add logger.push_tags and .pop_tags to complement logger.tagged:

  class Job
    def before
      Rails.logger.push_tags :jobs, self.class.name
    end
  
    def after
      Rails.logger.pop_tags 2
    end
  end
  

  Jeremy Kemper

• Allow delegation to the class using the :class keyword, replacing self.class usage:

  class User
    def self.hello
     "world"
    end
  
    delegate :hello, to: :class
  end
  

  Marc-Andre Lafortune

• Date.beginning_of_week thread local and beginning_of_week application config option added (default is Monday).

  Innokenty Mikhailov

• An optional block can be passed to config_accessor to set its default value

  class User
    include ActiveSupport::Configurable
    config_accessor :hair_colors do
      [:brown, :black, :blonde, :red]
    end
  end
  
  User.hair_colors # => [:brown, :black, :blonde, :red]
  

  Larry Lv

• ActiveSupport::Benchmarkable#silence has been deprecated due to its lack of thread safety. It will be removed without replacement in Rails 4.1.

  Steve Klabnik

• An optional block can be passed to Hash#deep_merge. The block will be invoked for each duplicated key and used to resolve the conflict.

  Pranas Kiziela

• ActiveSupport::Deprecation is now a class. It is possible to create an instance of deprecator. Backwards compatibility has been preserved.

  You can choose which instance of the deprecator will be used.

  deprecate :method_name, :deprecator => deprecator_instance
  

  You can use ActiveSupport::Deprecation in your gem.

  require 'active_support/deprecation'
  require 'active_support/core_ext/module/deprecation'
  
  class MyGem
    def self.deprecator
      ActiveSupport::Deprecation.new('2.0', 'MyGem')
    end
  
    def old_method
    end
  
    def new_method
    end
  
    deprecate :old_method => :new_method, :deprecator => deprecator
  end
  
  MyGem.new.old_method
  # => DEPRECATION WARNING: old_method is deprecated and will be removed from MyGem 2.0 (use new_method instead). (called from <main> at file.rb:18)
  

  Piotr Niełacny & Robert Pankowecki

• ERB::Util.html_escape encodes single quote as #39. Decimal form has better support in old browsers. Kalys Osmonov

• ActiveSupport::Callbacks: deprecate monkey patch of object callbacks. Using the #filter method like this:

  before_filter MyFilter.new
  
  class MyFilter
    def filter(controller)
    end
  end
  

  Is now deprecated with recommendation to use the corresponding filter type (#before, #after or #around):

  before_filter MyFilter.new
  
  class MyFilter
    def before(controller)
    end
  end
  

  Bogdan Gusiev

• An optional block can be passed to HashWithIndifferentAccess#update and #merge. The block will be invoked for each duplicated key, and used to resolve the conflict, thus replicating the behaviour of the corresponding methods on the Hash class.

  Leo Cassarani

• Remove j alias for ERB::Util#json_escape. The j alias is already used for ActionView::Helpers::JavaScriptHelper#escape_javascript and both modules are included in the view context that would confuse the developers.

  Akira Matsuda

• Replace deprecated memcache-client gem with dalli in ActiveSupport::Cache::MemCacheStore

  Guillermo Iguaran

• Add default values to all ActiveSupport::NumberHelper methods, to avoid errors with empty locales or missing values.

  Carlos Antonio da Silva

• ActiveSupport::JSON::Variable is deprecated. Define your own #as_json and #encode_json methods for custom JSON string literals.

  Erich Menge

• Add String#indent. fxn & Ace Suares

• Inflections can now be defined per locale. singularize and pluralize accept locale as an extra argument.

  David Celis

• Object#try will now return nil instead of raise a NoMethodError if the receiving object does not implement the method, but you can still get the old behavior by using the new Object#try!.

  DHH

• ERB::Util.html_escape now escapes single quotes. Santiago Pastorino

• Time#change now works with time values with offsets other than UTC or the local time zone. Andrew White

• ActiveSupport::Callbacks: deprecate usage of filter object with #before and #after methods as around callback. Bogdan Gusiev

• Add Time#prev_quarter and Time#next_quarter short-hands for months_ago(3) and months_since(3). SungHee Kang

• Remove obsolete and unused require_association method from dependencies. fxn

• Add :instance_accessor option for config_accessor.

  class User
    include ActiveSupport::Configurable
    config_accessor :allowed_access, instance_accessor: false
  end
  
  User.new.allowed_access = true # => NoMethodError
  User.new.allowed_access        # => NoMethodError
  

  Francesco Rodriguez

• ActionView::Helpers::NumberHelper methods have been moved to ActiveSupport::NumberHelper and are now available via Numeric#to_s. Numeric#to_s now accepts the formatting options :phone, :currency, :percentage, :delimited, :rounded, :human, and :human_size. Andrew Mutz

• Add Hash#transform_keys, Hash#transform_keys!, Hash#deep_transform_keys, and Hash#deep_transform_keys!. Mark McSpadden

• Changed xml type datetime to dateTime (with upper case letter T). Angelo Capilleri

• Add :instance_accessor option for class_attribute. Alexey Vakhov

• constantize now looks in the ancestor chain. Marc-Andre Lafortune & Andrew White

• Adds Hash#deep_stringify_keys and Hash#deep_stringify_keys! to convert all keys from a +Hash+ instance into strings Lucas Húngaro

• Adds Hash#deep_symbolize_keys and Hash#deep_symbolize_keys! to convert all keys from a +Hash+ instance into symbols Lucas Húngaro

• Object#try can't call private methods. Vasiliy Ermolovich

• AS::Callbacks#run_callbacks remove key argument. Francesco Rodriguez

• deep_dup works more expectedly now and duplicates also values in +Hash+ instances and elements in +Array+ instances. Alexey Gaziev

• Inflector no longer applies ice -> ouse to words like slice, police, ets Wes Morgan

• Add ActiveSupport::Deprecations.behavior = :silence to completely ignore Rails runtime deprecations twinturbo

• Make Module#delegate stop using send - can no longer delegate to private methods. dasch

• AS::Callbacks: deprecate :rescuable option. Bogdan Gusiev

• Adds Integer#ordinal to get the ordinal suffix string of an integer. Tim Gildea

• AS::Callbacks: :per_key option is no longer supported

• AS::Callbacks#define_callbacks: add :skip_after_callbacks_if_terminated option.

• Add html_escape_once to ERB::Util, and delegate escape_once tag helper to it. Carlos Antonio da Silva

• Remove ActiveSupport::TestCase#pending method, use skip instead. Carlos Antonio da Silva

• Deprecates the compatibility method Module#local_constant_names, use Module#local_constants instead (which returns symbols). fxn

• Deletes the compatibility method Module#method_names, use Module#methods from now on (which returns symbols). fxn

• Deletes the compatibility method Module#instance_method_names, use Module#instance_methods from now on (which returns symbols). fxn

• BufferedLogger is deprecated. Use ActiveSupport::Logger, or the logger from Ruby stdlib.

• Unicode database updated to 6.1.0.

• Adds encode_big_decimal_as_string option to force JSON serialization of BigDecimals as numeric instead of wrapping them in strings for safety.

• Remove deprecated ActiveSupport::JSON::Variable. Erich Menge

• Optimize log subscribers to check log level before doing any processing. Brian Durand

Please check 3-2-stable for previous changes.