Merge pull request #11451 from jetthoughts/11450_do_not_resave_destroyed_association

Do not re-save destroyed association on saving parent object
Conflicts:
	activerecord/lib/active_record/autosave_association.rb

activerecord/CHANGELOG.md

@@ -1,3 +1,12 @@
+## Rails 3.2.14.rc2 (unreleased) ##
+
+*   Do not re-create destroyed association when saving the parent object.
+
+    Fixes #11450.
+
+    *Paul Nikitochkin*
+
+
 ## Rails 3.2.14.rc1 (Jul 8, 2013) ##
 
 *   Do not shallow the original exception in `exec_cache` on PostgreSQL adapter.

activerecord/lib/active_record/autosave_association.rb

@@ -339,6 +339,8 @@ module ActiveRecord
             end
 
             records.each do |record|
+              next if record.destroyed?
+
               saved = true
 
               if autosave != false && (@new_record_before_save || record.new_record?)

activerecord/test/cases/autosave_association_test.rb

@@ -734,6 +734,13 @@ class TestDestroyAsPartOfAutosaveAssociation < ActiveRecord::TestCase
     ids.each { |id| assert_nil klass.find_by_id(id) }
   end
 
+  def test_should_not_resave_destroyed_association
+    @pirate.birds.create!(name: :parrot)
+    @pirate.birds.first.destroy
+    @pirate.save!
+    assert @pirate.reload.birds.empty?
+  end
+
   def test_should_skip_validation_on_has_many_if_marked_for_destruction
     2.times { |i| @pirate.birds.create!(:name => "birds_#{i}") }