Added Object#self which returns the object itself

Author: David Heinemeier Hansson

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