From 1c07b84df95e932d50376c1d0a13585b2e2ef868 Mon Sep 17 00:00:00 2001 From: Jon Leighton Date: Thu, 23 Dec 2010 13:36:25 +0000 Subject: If a has_many goes :through a belongs_to, and the foreign key of the belongs_to changes, then the has_many should be considered stale. --- .../associations/belongs_to_associations_test.rb | 60 +++++++++++++--------- .../has_many_through_associations_test.rb | 16 ++++++ .../has_one_through_associations_test.rb | 15 ++++++ 3 files changed, 68 insertions(+), 23 deletions(-) (limited to 'activerecord/test/cases') diff --git a/activerecord/test/cases/associations/belongs_to_associations_test.rb b/activerecord/test/cases/associations/belongs_to_associations_test.rb index 1820f95261..cdde9a80d3 100644 --- a/activerecord/test/cases/associations/belongs_to_associations_test.rb +++ b/activerecord/test/cases/associations/belongs_to_associations_test.rb @@ -17,7 +17,7 @@ require 'models/essay' class BelongsToAssociationsTest < ActiveRecord::TestCase fixtures :accounts, :companies, :developers, :projects, :topics, :developers_projects, :computers, :authors, :author_addresses, - :posts, :tags, :taggings, :comments + :posts, :tags, :taggings, :comments, :sponsors, :members def test_belongs_to Client.find(3).firm.name @@ -488,39 +488,53 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase end def test_reassigning_the_parent_id_updates_the_object - original_parent = Firm.create! :name => "original" - updated_parent = Firm.create! :name => "updated" + client = companies(:second_client) - client = Client.new("client_of" => original_parent.id) - assert_equal original_parent, client.firm - assert_equal original_parent, client.firm_with_condition - assert_equal original_parent, client.firm_with_other_name + client.firm + client.firm_with_condition + firm_proxy = client.send(:association_instance_get, :firm) + firm_with_condition_proxy = client.send(:association_instance_get, :firm_with_condition) - client.client_of = updated_parent.id - assert_equal updated_parent, client.firm - assert_equal updated_parent, client.firm_with_condition - assert_equal updated_parent, client.firm_with_other_name + assert !firm_proxy.stale_target? + assert !firm_with_condition_proxy.stale_target? + assert_equal companies(:first_firm), client.firm + assert_equal companies(:first_firm), client.firm_with_condition + + client.client_of = companies(:another_firm).id + + assert firm_proxy.stale_target? + assert firm_with_condition_proxy.stale_target? + assert_equal companies(:another_firm), client.firm + assert_equal companies(:another_firm), client.firm_with_condition end def test_polymorphic_reassignment_of_associated_id_updates_the_object - member1 = Member.create! - member2 = Member.create! + sponsor = sponsors(:moustache_club_sponsor_for_groucho) + + sponsor.sponsorable + proxy = sponsor.send(:association_instance_get, :sponsorable) + + assert !proxy.stale_target? + assert_equal members(:groucho), sponsor.sponsorable - sponsor = Sponsor.new("sponsorable_type" => "Member", "sponsorable_id" => member1.id) - assert_equal member1, sponsor.sponsorable + sponsor.sponsorable_id = members(:some_other_guy).id - sponsor.sponsorable_id = member2.id - assert_equal member2, sponsor.sponsorable + assert proxy.stale_target? + assert_equal members(:some_other_guy), sponsor.sponsorable end def test_polymorphic_reassignment_of_associated_type_updates_the_object - member1 = Member.create! + sponsor = sponsors(:moustache_club_sponsor_for_groucho) - sponsor = Sponsor.new("sponsorable_type" => "Member", "sponsorable_id" => member1.id) - assert_equal member1, sponsor.sponsorable + sponsor.sponsorable + proxy = sponsor.send(:association_instance_get, :sponsorable) - sponsor.sponsorable_type = "Firm" - assert_not_equal member1, sponsor.sponsorable - end + assert !proxy.stale_target? + assert_equal members(:groucho), sponsor.sponsorable + + sponsor.sponsorable_type = 'Firm' + assert proxy.stale_target? + assert_equal companies(:first_firm), sponsor.sponsorable + end end diff --git a/activerecord/test/cases/associations/has_many_through_associations_test.rb b/activerecord/test/cases/associations/has_many_through_associations_test.rb index a417345780..e98d178ff5 100644 --- a/activerecord/test/cases/associations/has_many_through_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb @@ -19,6 +19,7 @@ require 'models/book' require 'models/subscription' require 'models/categorization' require 'models/category' +require 'models/essay' class HasManyThroughAssociationsTest < ActiveRecord::TestCase fixtures :posts, :readers, :people, :comments, :authors, :categories, @@ -534,4 +535,19 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase assert_equal 2, authors(:mary).categories.count assert_equal 1, authors(:mary).categories.general.count end + + def test_has_many_through_belongs_to_should_update_when_the_through_foreign_key_changes + post = posts(:eager_other) + + post.author_categorizations + proxy = post.send(:association_instance_get, :author_categorizations) + + assert !proxy.stale_target? + assert_equal authors(:mary).categorizations.sort_by(&:id), post.author_categorizations.sort_by(&:id) + + post.author_id = authors(:david).id + + assert proxy.stale_target? + assert_equal authors(:david).categorizations.sort_by(&:id), post.author_categorizations.sort_by(&:id) + end end diff --git a/activerecord/test/cases/associations/has_one_through_associations_test.rb b/activerecord/test/cases/associations/has_one_through_associations_test.rb index f6365e0216..7d55d909a7 100644 --- a/activerecord/test/cases/associations/has_one_through_associations_test.rb +++ b/activerecord/test/cases/associations/has_one_through_associations_test.rb @@ -251,4 +251,19 @@ class HasOneThroughAssociationsTest < ActiveRecord::TestCase members(:groucho).club_through_many end end + + def test_has_one_through_belongs_to_should_update_when_the_through_foreign_key_changes + minivan = minivans(:cool_first) + + minivan.dashboard + proxy = minivan.send(:association_instance_get, :dashboard) + + assert !proxy.stale_target? + assert_equal dashboards(:cool_first), minivan.dashboard + + minivan.speedometer_id = speedometers(:second).id + + assert proxy.stale_target? + assert_equal dashboards(:second), minivan.dashboard + end end -- cgit v1.2.3