diff options
4 files changed, 29 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 041872034f..e83970761c 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,9 @@ +* Fixed setting of foreign_key for through associations while building of new record. + + Fixes #12698. + + *Ivan Antropov* + * Fixed serialization for records with an attribute named `format`. Fixes #15188. diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb index f8a85b8a6f..9de9875b38 100644 --- a/activerecord/lib/active_record/associations/through_association.rb +++ b/activerecord/lib/active_record/associations/through_association.rb @@ -84,6 +84,17 @@ module ActiveRecord raise HasManyThroughNestedAssociationsAreReadonly.new(owner, reflection) end end + + def build_record(attributes) + inverse = source_reflection.inverse_of + target = through_association.target + + if inverse && target && !target.is_a?(Array) + attributes[inverse.foreign_key] = target.id + end + + super(attributes) + end end 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 2e62189e7a..c856b7a724 100644 --- a/activerecord/test/cases/associations/has_many_through_associations_test.rb +++ b/activerecord/test/cases/associations/has_many_through_associations_test.rb @@ -24,12 +24,13 @@ require 'models/categorization' require 'models/member' require 'models/membership' require 'models/club' +require 'models/organization' class HasManyThroughAssociationsTest < ActiveRecord::TestCase fixtures :posts, :readers, :people, :comments, :authors, :categories, :taggings, :tags, :owners, :pets, :toys, :jobs, :references, :companies, :members, :author_addresses, :subscribers, :books, :subscriptions, :developers, :categorizations, :essays, - :categories_posts, :clubs, :memberships + :categories_posts, :clubs, :memberships, :organizations # Dummies to force column loads so query counts are clean. def setup @@ -1126,4 +1127,12 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase assert_equal 2, post.lazy_readers_unscope_skimmers.to_a.size assert_equal 2, post.lazy_people_unscope_skimmers.to_a.size end + + def test_build_for_has_many_through_association + organization = organizations(:nsa) + author = organization.author + post_direct = author.posts.build + post_through = organization.posts.build + assert_equal post_direct.author_id, post_through.author_id + end end diff --git a/activerecord/test/models/organization.rb b/activerecord/test/models/organization.rb index 72e7bade68..f3e92f3067 100644 --- a/activerecord/test/models/organization.rb +++ b/activerecord/test/models/organization.rb @@ -8,5 +8,7 @@ class Organization < ActiveRecord::Base has_one :author, :primary_key => :name has_one :author_owned_essay_category, :through => :author, :source => :owned_essay_category + has_many :posts, :through => :author, :source => :posts + scope :clubs, -> { from('clubs') } end |