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reintroduce patch from #726 to handle nested eager loading via associations

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This commit is contained in:
Jay Levitt 2011-11-30 18:12:24 -05:00
parent cbeeaa6ea0
commit 24b8814db0
2 changed files with 36 additions and 1 deletions
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2
activerecord/lib/active_record/associations/join_dependency.rb
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@ -184,7 +184,7 @@ module ActiveRecord
macro = join_part.reflection.macro
if macro == :has_one
return if record.association_cache.key?(join_part.reflection.name)
return record.association(join_part.reflection.name).target if record.association_cache.key?(join_part.reflection.name)
association = join_part.instantiate(row) unless row[join_part.aliased_primary_key].nil?
set_target_and_inverse(join_part, association, record)
else

35
activerecord/test/cases/associations/eager_test.rb
View file

@ -252,6 +252,41 @@ class EagerAssociationTest < ActiveRecord::TestCase
end
end
def test_nested_loading_through_has_one_association
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts})
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_nested_loading_through_has_one_association_with_order
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts}, :order => 'author_addresses.id')
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_nested_loading_through_has_one_association_with_order_on_association
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts}, :order => 'authors.id')
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_nested_loading_through_has_one_association_with_order_on_nested_association
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts}, :order => 'posts.id')
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_nested_loading_through_has_one_association_with_conditions
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts}, :conditions => "author_addresses.id > 0")
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_nested_loading_through_has_one_association_with_conditions_on_association
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts}, :conditions => "authors.id > 0")
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_nested_loading_through_has_one_association_with_conditions_on_nested_association
aa = AuthorAddress.find(author_addresses(:david_address).id, :include => {:author => :posts}, :conditions => "posts.id > 0")
assert_equal aa.author.posts.count, aa.author.posts.length
end
def test_eager_association_loading_with_belongs_to_and_foreign_keys
pets = Pet.find(:all, :include => :owner)
assert_equal 3, pets.length