Axe AM state machine

We're going do it eventually, get it done before 3.0 is final.

4 files changed, 0 insertions, 94 deletions

diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb
index cc0accf90e..0c4cc6a554 100644
--- a/activerecord/lib/active_record.rb
+++ b/activerecord/lib/active_record.rb
@@ -73,7 +73,6 @@ module ActiveRecord
     autoload :SchemaDumper
     autoload :Serialization
     autoload :SessionStore
-    autoload :StateMachine
     autoload :Timestamp
     autoload :Transactions
     autoload :Validations
diff --git a/activerecord/lib/active_record/state_machine.rb b/activerecord/lib/active_record/state_machine.rb
deleted file mode 100644
index aebd03344a..0000000000
--- a/activerecord/lib/active_record/state_machine.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-module ActiveRecord
-  module StateMachine #:nodoc:
-    extend ActiveSupport::Concern
-    include ActiveModel::StateMachine
-
-    included do
-      before_validation :set_initial_state
-      validates_presence_of :state
-    end
-
-    protected
-      def write_state(state_machine, state)
-        update_attributes! :state => state.to_s
-      end
-
-      def read_state(state_machine)
-        self.state.to_sym
-      end
-
-      def set_initial_state
-        self.state ||= self.class.state_machine.initial_state.to_s
-      end
-  end
-end
diff --git a/activerecord/test/cases/state_machine_test.rb b/activerecord/test/cases/state_machine_test.rb
deleted file mode 100644
index 5d13668bab..0000000000
--- a/activerecord/test/cases/state_machine_test.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-require 'cases/helper'
-require 'models/traffic_light'
-
-class StateMachineTest < ActiveRecord::TestCase
-  def setup
-    @light = TrafficLight.create!
-  end
-
-  test "states initial state" do
-    assert @light.off?
-    assert_equal :off, @light.current_state
-  end
-
-  test "transition to a valid state" do
-    @light.reset
-    assert @light.red?
-    assert_equal :red, @light.current_state
-
-    @light.green_on
-    assert @light.green?
-    assert_equal :green, @light.current_state
-  end
-
-  test "transition does not persist state" do
-    @light.reset
-    assert_equal :red, @light.current_state
-    @light.reload
-    assert_equal "off", @light.state
-  end
-
-  test "transition does persists state" do
-    @light.reset!
-    assert_equal :red, @light.current_state
-    @light.reload
-    assert_equal "red", @light.state
-  end
-
-  test "transition to an invalid state" do
-    assert_raise(ActiveModel::StateMachine::InvalidTransition) { @light.yellow_on }
-    assert_equal :off, @light.current_state
-  end
-end
diff --git a/activerecord/test/models/traffic_light.rb b/activerecord/test/models/traffic_light.rb
deleted file mode 100644
index f8cfddbef9..0000000000
--- a/activerecord/test/models/traffic_light.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-class TrafficLight < ActiveRecord::Base
-  include ActiveRecord::StateMachine
-
-  state_machine do
-    state :off
-
-    state :red
-    state :green
-    state :yellow
-
-    event :red_on do
-      transitions :to => :red, :from => [:yellow]
-    end
-
-    event :green_on do
-      transitions :to => :green, :from => [:red]
-    end
-
-    event :yellow_on do
-      transitions :to => :yellow, :from => [:green]
-    end
-
-    event :reset do
-      transitions :to => :red, :from => [:off]
-    end
-  end
-end