Merge pull request #18 from curtis/master

Implement persisted? method for ActiveRecord

.gitignore

 pkg/*
 *.gem
 .bundle
+tmp
+.rvmrc

Gemfile.lock

@@ -7,22 +7,24 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    activemodel (3.0.8)
-      activesupport (= 3.0.8)
-      builder (~> 2.1.2)
-      i18n (~> 0.5.0)
-    activerecord (3.0.8)
-      activemodel (= 3.0.8)
-      activesupport (= 3.0.8)
-      arel (~> 2.0.10)
-      tzinfo (~> 0.3.23)
-    activesupport (3.0.8)
-    arel (2.0.10)
-    builder (2.1.2)
-    i18n (0.5.0)
+    activemodel (3.2.0)
+      activesupport (= 3.2.0)
+      builder (~> 3.0.0)
+    activerecord (3.2.0)
+      activemodel (= 3.2.0)
+      activesupport (= 3.2.0)
+      arel (~> 3.0.0)
+      tzinfo (~> 0.3.29)
+    activesupport (3.2.0)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    arel (3.0.0)
+    builder (3.0.0)
+    i18n (0.6.0)
+    multi_json (1.0.4)
     rake (0.8.7)
-    sqlite3 (1.3.3)
-    tzinfo (0.3.28)
+    sqlite3 (1.3.5)
+    tzinfo (0.3.31)
 
 PLATFORMS
   ruby

lib/paranoia.rb

@@ -42,4 +42,11 @@ class ActiveRecord::Base
 
   def self.paranoid? ; false ; end
   def paranoid? ; self.class.paranoid? ; end
+
+  # Override the persisted method to allow for the paranoia gem.
+  # If a paranoid record is selected, then we only want to check
+  # if it's a new record, not if it is "destroyed".
+  def persisted?
+    paranoid? ? !new_record? : super
+  end
 end

test/paranoia_test.rb

@@ -30,6 +30,17 @@ class ParanoiaTest < Test::Unit::TestCase
     assert_equal true, ParanoidModel.new.paranoid?
   end
 
+  def test_paranoid_models_to_param
+    model = ParanoidModel.new
+    model.save
+    to_param = model.to_param
+
+    model.destroy
+
+    assert_not_equal nil, model.to_param
+    assert_equal to_param, model.to_param
+  end
+
   def test_destroy_behavior_for_plain_models
     model = PlainModel.new
     assert_equal 0, model.class.count