From b41c3ba154c2038ecc7b230693662257833869b8 Mon Sep 17 00:00:00 2001 From: James Le Cuirot Date: Wed, 9 Jun 2010 12:33:40 +0100 Subject: [PATCH] Don't overwrite unsaved updates when loading an association but preserve the order of the loaded records. [#4642 state:resolved] Signed-off-by: Pratik Naik --- .../associations/association_collection.rb | 2 +- activerecord/test/cases/nested_attributes_test.rb | 14 ++++++++++++++ activerecord/test/models/pirate.rb | 4 ++-- 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/activerecord/lib/active_record/associations/association_collection.rb b/activerecord/lib/active_record/associations/association_collection.rb index a7e1516abfd74..7e2a48bb85a71 100644 --- a/activerecord/lib/active_record/associations/association_collection.rb +++ b/activerecord/lib/active_record/associations/association_collection.rb @@ -349,7 +349,7 @@ def load_target begin if !loaded? if @target.is_a?(Array) && @target.any? - @target = find_target + @target.find_all {|t| t.new_record? } + @target = find_target.map { |f| i = @target.index(f); i ? @target.delete_at(i) : f } + @target else @target = find_target end diff --git a/activerecord/test/cases/nested_attributes_test.rb b/activerecord/test/cases/nested_attributes_test.rb index 2202714b6fb7f..eab9e64a06906 100644 --- a/activerecord/test/cases/nested_attributes_test.rb +++ b/activerecord/test/cases/nested_attributes_test.rb @@ -465,6 +465,20 @@ def test_should_not_load_association_when_updating_existing_records assert_equal 'Grace OMalley', @child_1.reload.name end + def test_should_not_overwrite_unsaved_updates_when_loading_association + @pirate.reload + @pirate.send(association_setter, [{ :id => @child_1.id, :name => 'Grace OMalley' }]) + @pirate.send(@association_name).send(:load_target) + assert_equal 'Grace OMalley', @pirate.send(@association_name).target.find { |r| r.id == @child_1.id }.name + end + + def test_should_preserve_order_when_not_overwriting_unsaved_updates + @pirate.reload + @pirate.send(association_setter, [{ :id => @child_1.id, :name => 'Grace OMalley' }]) + @pirate.send(@association_name).send(:load_target) + assert_equal @pirate.send(@association_name).target.first.id, @child_1.id + end + def test_should_take_a_hash_with_composite_id_keys_and_assign_the_attributes_to_the_associated_models @child_1.stubs(:id).returns('ABC1X') @child_2.stubs(:id).returns('ABC2X') diff --git a/activerecord/test/models/pirate.rb b/activerecord/test/models/pirate.rb index f1dbe32c6ea98..d89c8cf381ddf 100644 --- a/activerecord/test/models/pirate.rb +++ b/activerecord/test/models/pirate.rb @@ -1,7 +1,7 @@ class Pirate < ActiveRecord::Base belongs_to :parrot, :validate => true belongs_to :non_validated_parrot, :class_name => 'Parrot' - has_and_belongs_to_many :parrots, :validate => true + has_and_belongs_to_many :parrots, :validate => true, :order => 'parrots.id ASC' has_and_belongs_to_many :non_validated_parrots, :class_name => 'Parrot' has_and_belongs_to_many :parrots_with_method_callbacks, :class_name => "Parrot", :before_add => :log_before_add, @@ -21,7 +21,7 @@ class Pirate < ActiveRecord::Base has_one :ship has_one :update_only_ship, :class_name => 'Ship' has_one :non_validated_ship, :class_name => 'Ship' - has_many :birds + has_many :birds, :order => 'birds.id ASC' has_many :birds_with_method_callbacks, :class_name => "Bird", :before_add => :log_before_add, :after_add => :log_after_add,