Added support for Rails 4.1.

Fixes #95

.travis.yml

@@ -4,4 +4,8 @@ rvm:
   - 2.0.0
   - 2.1.0
   - jruby-19mode
-  - rbx
\ No newline at end of file
+  - rbx
+
+env:
+  - RAILS='~> 4.0.2'
+  - RAILS='~> 4.1.0.beta1'

Gemfile

@@ -9,5 +9,9 @@ platforms :rbx do
   gem 'rubinius-developer_tools'
 end
 
+rails = ENV['RAILS'] || '~> 4.0.2'
+
+gem 'rails', rails
+
 # Specify your gem's dependencies in paranoia.gemspec
 gemspec

lib/paranoia.rb

@@ -8,7 +8,11 @@ module Paranoia
     def paranoid? ; true ; end
 
     def with_deleted
-      all.tap { |x| x.default_scoped = false }
+      if ActiveRecord::VERSION::STRING >= "4.1"
+        unscope where: paranoia_column
+      else
+        all.tap { |x| x.default_scoped = false }
+      end
     end
 
     def only_deleted
@@ -47,6 +51,16 @@ module Paranoia
     run_callbacks(:destroy) { touch_paranoia_column(true) }
   end
 
+  # As of Rails 4.1.0 +destroy!+ will no longer remove the record from the db
+  # unless you touch the paranoia column before.
+  # We need to override it here otherwise children records might be removed
+  # when they shouldn't
+  if ActiveRecord::VERSION::STRING >= "4.1"
+    def destroy!
+      destroyed? ? super : destroy || raise(ActiveRecord::RecordNotDestroyed)
+    end
+  end
+
   def delete
     return if new_record?
     touch_paranoia_column(false)
@@ -106,7 +120,7 @@ class ActiveRecord::Base
     class_attribute :paranoia_column
 
     self.paranoia_column = options[:column] || :deleted_at
-    default_scope { where(self.quoted_table_name + ".#{paranoia_column} IS NULL") }
+    default_scope { where(paranoia_column => nil) }
 
     before_restore {
       self.class.notify_observers(:before_restore, self) if self.class.respond_to?(:notify_observers)

test/paranoia_test.rb

-require 'test/unit'
 require 'active_record'
-require File.expand_path(File.dirname(__FILE__) + "/../lib/paranoia")
-
-DB_FILE = 'tmp/test_db'
 
-FileUtils.mkdir_p File.dirname(DB_FILE)
-FileUtils.rm_f DB_FILE
+test_framework = if ActiveRecord::VERSION::STRING >= "4.1"
+  require 'minitest/autorun'
+  MiniTest::Test
+else
+  require 'test/unit'
+  Test::Unit::TestCase
+end
+require File.expand_path(File.dirname(__FILE__) + "/../lib/paranoia")
 
-ActiveRecord::Base.establish_connection :adapter => 'sqlite3', :database => DB_FILE
+ActiveRecord::Base.establish_connection :adapter => 'sqlite3', database: ':memory:'
 ActiveRecord::Base.connection.execute 'CREATE TABLE parent_models (id INTEGER NOT NULL PRIMARY KEY, deleted_at DATETIME)'
 ActiveRecord::Base.connection.execute 'CREATE TABLE paranoid_models (id INTEGER NOT NULL PRIMARY KEY, parent_model_id INTEGER, deleted_at DATETIME)'
 ActiveRecord::Base.connection.execute 'CREATE TABLE featureful_models (id INTEGER NOT NULL PRIMARY KEY, deleted_at DATETIME, name VARCHAR(32))'
@@ -20,7 +22,13 @@ ActiveRecord::Base.connection.execute 'CREATE TABLE jobs (id INTEGER NOT NULL PR
 ActiveRecord::Base.connection.execute 'CREATE TABLE custom_column_models (id INTEGER NOT NULL PRIMARY KEY, destroyed_at DATETIME)'
 ActiveRecord::Base.connection.execute 'CREATE TABLE non_paranoid_models (id INTEGER NOT NULL PRIMARY KEY, parent_model_id INTEGER)'
 
-class ParanoiaTest < Test::Unit::TestCase
+class ParanoiaTest < test_framework
+  def setup
+    ActiveRecord::Base.connection.tables.each do |table|
+      ActiveRecord::Base.connection.execute "DELETE FROM #{table}"
+    end
+  end
+
   def test_plain_model_class_is_not_paranoid
     assert_equal false, PlainModel.paranoid?
   end
@@ -44,7 +52,7 @@ class ParanoiaTest < Test::Unit::TestCase
 
     model.destroy
 
-    assert_not_equal nil, model.to_param
+    assert model.to_param
     assert_equal to_param, model.to_param
   end
 
@@ -106,7 +114,6 @@ class ParanoiaTest < Test::Unit::TestCase
   end
 
   def test_scoping_behavior_for_paranoid_models
-    ParanoidModel.unscoped.delete_all
     parent1 = ParentModel.create
     parent2 = ParentModel.create
     p1 = ParanoidModel.create(:parent_model => parent1)
@@ -267,11 +274,19 @@ class ParanoiaTest < Test::Unit::TestCase
   def test_real_destroy
     model = ParanoidModel.new
     model.save
-    model.destroy!
-
+    model.really_destroy!
     refute ParanoidModel.unscoped.exists?(model.id)
   end
 
+  if ActiveRecord::VERSION::STRING < "4.1"
+    def test_real_destroy
+      model = ParanoidModel.new
+      model.save
+      model.destroy!
+      refute ParanoidModel.unscoped.exists?(model.id)
+    end
+  end
+
   def test_real_delete
     model = ParanoidModel.new
     model.save
@@ -368,10 +383,6 @@ end
 
 # Helper classes
 
-class ParentModel < ActiveRecord::Base
-  has_many :paranoid_models
-end
-
 class ParanoidModel < ActiveRecord::Base
   belongs_to :parent_model
   acts_as_paranoid
@@ -404,6 +415,7 @@ end
 
 class ParentModel < ActiveRecord::Base
   acts_as_paranoid
+  has_many :paranoid_models
   has_many :related_models
   has_many :very_related_models, :class_name => 'RelatedModel', dependent: :destroy
   has_many :non_paranoid_models, dependent: :destroy