From 1918b12c0429caec2a6134ac5e5b42ade103fe90 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafael=20Mendon=C3=A7a=20Fran=C3=A7a?= Date: Fri, 1 Nov 2013 19:04:30 -0200 Subject: [PATCH] Fix wrong behavior where associations with dependent: :destroy options was using nullify strategy This caused a regression in applications trying to upgrade. Also if the user set the dependent option as destroy he expects to get the records removed from the database. --- activerecord/CHANGELOG.md | 4 ++-- .../active_record/associations/collection_association.rb | 6 ++---- .../test/cases/associations/has_many_associations_test.rb | 7 +++---- 3 files changed, 7 insertions(+), 10 deletions(-) diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 53dc1374b4..7e6ef27964 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -545,11 +545,11 @@ Method `delete_all` should not be invoking callbacks and this feature was deprecated in Rails 4.0. This is being removed. `delete_all` will continue to honor the `:dependent` option. However - if `:dependent` value is `:destroy` then the default deletion + if `:dependent` value is `:destroy` then the `:delete_all` deletion strategy for that collection will be applied. User can also force a deletion strategy by passing parameter to - `delete_all`. For example you can do `@post.comments.delete_all(:nullify)` . + `delete_all`. For example you can do `@post.comments.delete_all(:nullify)`. *Neeraj Singh* diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index 6b06a5f7fd..62f23f54f9 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -151,7 +151,7 @@ module ActiveRecord # Removes all records from the association without calling callbacks # on the associated records. It honors the `:dependent` option. However - # if the `:dependent` value is `:destroy` then in that case the default + # if the `:dependent` value is `:destroy` then in that case the `:delete_all` # deletion strategy for the association is applied. # # You can force a particular deletion strategy by passing a parameter. @@ -170,9 +170,7 @@ module ActiveRecord dependent = if dependent.present? dependent elsif options[:dependent] == :destroy - # since delete_all should not invoke callbacks so use the default deletion strategy - # for :destroy - reflection.is_a?(ActiveRecord::Reflection::ThroughReflection) ? :delete_all : :nullify + :delete_all else options[:dependent] end diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb index b824a0ee7c..dfc8a68e8c 100644 --- a/activerecord/test/cases/associations/has_many_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_associations_test.rb @@ -101,11 +101,10 @@ class HasManyAssociationsTest < ActiveRecord::TestCase end def test_do_not_call_callbacks_for_delete_all - bulb_count = Bulb.count car = Car.create(:name => 'honda') car.funky_bulbs.create! assert_nothing_raised { car.reload.funky_bulbs.delete_all } - assert_equal bulb_count + 1, Bulb.count, "bulbs should have been deleted using :nullify strategey" + assert_equal 0, Bulb.count, "bulbs should have been deleted using :delete_all strategey" end def test_building_the_associated_object_with_implicit_sti_base_class @@ -864,7 +863,7 @@ class HasManyAssociationsTest < ActiveRecord::TestCase assert_equal 1, firm.dependent_clients_of_firm.size assert_equal 1, Client.find_by_id(client_id).client_of - # :nullify is called on each client + # :delete_all is called on each client since the dependent options is :destroy firm.dependent_clients_of_firm.clear assert_equal 0, firm.dependent_clients_of_firm.size @@ -872,7 +871,7 @@ class HasManyAssociationsTest < ActiveRecord::TestCase assert_equal [], Client.destroyed_client_ids[firm.id] # Should be destroyed since the association is dependent. - assert_nil Client.find_by_id(client_id).client_of + assert_nil Client.find_by_id(client_id) end def test_delete_all_with_option_delete_all