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Merge pull request #31934 from fatkodima/fix-has_many_through-dumping

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Fix marshaling of models with `has_many :through` associations
This commit is contained in:
Ryuta Kamizono 2018-02-09 09:47:16 +09:00
commit 52c9af6c51
2 changed files with 7 additions and 2 deletions
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4
activerecord/lib/active_record/associations/association.rb
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@ -156,9 +156,9 @@ module ActiveRecord
reset
end
# We can't dump @reflection since it contains the scope proc
# We can't dump @reflection and @through_reflection since it contains the scope proc
def marshal_dump
ivars = (instance_variables - [:@reflection]).map { |name| [name, instance_variable_get(name)] }
ivars = (instance_variables - [:@reflection, :@through_reflection]).map { |name| [name, instance_variable_get(name)] }
[@reflection.name, ivars]
end

5
activerecord/test/cases/associations/has_many_through_associations_test.rb
View file

@ -46,6 +46,11 @@ class HasManyThroughAssociationsTest < ActiveRecord::TestCase
Reader.create person_id: 0, post_id: 0
end
def test_marshal_dump
preloaded = Post.includes(:first_blue_tags).first
assert_equal preloaded, Marshal.load(Marshal.dump(preloaded))
end
def test_preload_sti_rhs_class
developers = Developer.includes(:firms).all.to_a
assert_no_queries do