Fix problem when destroying non-paranoid has_one association

Thanks @kidlab

lib/paranoia.rb

@@ -170,15 +170,16 @@ class ActiveRecord::Base
         reflection.options[:dependent] == :destroy
       end
       if dependent_reflections.any?
-        dependent_reflections.each do |name, _|
-          associated_records = self.send(name)
+        dependent_reflections.each do |name, reflection|
+          association_data = self.send(name)
           # has_one association can return nil
-          if associated_records && associated_records.respond_to?(:with_deleted)
-            # Paranoid models will have this method, non-paranoid models will not
-            associated_records.with_deleted.each(&:really_destroy!)
-            self.send(name).reload
-          elsif associated_records && !associated_records.respond_to?(:each) # single record
-            associated_records.really_destroy!
+          # .paranoid? will work for both instances and classes
+          if association_data && association_data.paranoid?
+            if reflection.collection?
+              association_data.with_deleted.each(&:really_destroy!)
+            else
+              association_data.really_destroy!
+            end
           end
         end
       end

test/paranoia_test.rb

@@ -361,9 +361,15 @@ class ParanoiaTest < test_framework
 
   def test_real_destroy_dependent_destroy
     parent = ParentModel.create
-    child = parent.very_related_models.create
+    child1 = parent.very_related_models.create
+    child2 = parent.non_paranoid_models.create
+    child3 = parent.create_non_paranoid_model
+
     parent.really_destroy!
-    refute RelatedModel.unscoped.exists?(child.id)
+
+    refute RelatedModel.unscoped.exists?(child1.id)
+    refute NonParanoidModel.unscoped.exists?(child2.id)
+    refute NonParanoidModel.unscoped.exists?(child3.id)
   end
 
   def test_real_destroy_dependent_destroy_after_normal_destroy
@@ -757,6 +763,7 @@ class ParentModel < ActiveRecord::Base
   has_many :related_models
   has_many :very_related_models, :class_name => 'RelatedModel', dependent: :destroy
   has_many :non_paranoid_models, dependent: :destroy
+  has_one :non_paranoid_model, dependent: :destroy
   has_many :asplode_models, dependent: :destroy
   has_one :polymorphic_model, as: :parent, dependent: :destroy
 end