Added Object#self which returns the object itself

activesupport/CHANGELOG.md

@@ -1,3 +1,9 @@
*   Added Object#self which returns the object itself. Useful when dealing with a chaining scenario, like Active Record scopes:

        Event.public_send(state.presence_in?([ :trashed, :drafted ]) ? :self).order(:created_at)
    
    *DHH*

*   `Object#with_options` executes block in merging option context when
    explicit receiver in not passed.

activesupport/lib/active_support/core_ext/object.rb

@@ -2,6 +2,7 @@
require 'active_support/core_ext/object/blank'
require 'active_support/core_ext/object/duplicable'
require 'active_support/core_ext/object/deep_dup'
require 'active_support/core_ext/object/self'
require 'active_support/core_ext/object/try'
require 'active_support/core_ext/object/inclusion'

activesupport/lib/active_support/core_ext/object/self.rb

@@ -0,0 +1,10 @@
class Object
  # Returns the object itself. Useful when dealing with a chaining scenario, like Active Record scopes:
  #
  #   Event.public_send(state.presence_in?([ :trashed, :drafted ]) ? :self).order(:created_at)
  #   
  # @return Object
  def self
    self
  end
end

activesupport/test/core_ext/object/self_test.rb

@@ -0,0 +1,9 @@
require 'abstract_unit'
require 'active_support/core_ext/object'

class Object::SelfTest < ActiveSupport::TestCase
  test 'self returns self' do
    object = 'fun'
    assert_equal object, object.self
  end
end