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Refactor: introduce lazy association

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This commit is contained in:
Benjamin Fleischer
2017-04-23 16:48:05 -05:00
parent 34d55e4729
commit 7697d9f5ec
7 changed files with 98 additions and 49 deletions
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65
test/serializers/associations_test.rb
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@@ -30,18 +30,17 @@ module ActiveModel
def test_has_many_and_has_one
@author_serializer.associations.each do |association|
key = association.key
serializer = association.serializer
options = association.options
serializer = association.lazy_association.serializer
case key
when :posts
assert_equal true, options.fetch(:include_data)
assert_equal true, association.include_data?
assert_kind_of(ActiveModelSerializers.config.collection_serializer, serializer)
when :bio
assert_equal true, options.fetch(:include_data)
assert_equal true, association.include_data?
assert_nil serializer
when :roles
assert_equal true, options.fetch(:include_data)
assert_equal true, association.include_data?
assert_kind_of(ActiveModelSerializers.config.collection_serializer, serializer)
else
flunk "Unknown association: #{key}"
@@ -56,12 +55,11 @@ module ActiveModel
end
post_serializer_class.new(@post).associations.each do |association|
key = association.key
serializer = association.serializer
options = association.options
serializer = association.lazy_association.serializer
assert_equal :tags, key
assert_nil serializer
assert_equal [{ id: 'tagid', name: '#hashtagged' }].to_json, options[:virtual_value].to_json
assert_equal [{ id: 'tagid', name: '#hashtagged' }].to_json, association.virtual_value.to_json
end
end
@@ -70,7 +68,7 @@ module ActiveModel
.associations
.detect { |assoc| assoc.key == :comments }
comment_serializer = association.serializer.first
comment_serializer = association.lazy_association.serializer.first
class << comment_serializer
def custom_options
instance_options
@@ -82,7 +80,7 @@ module ActiveModel
def test_belongs_to
@comment_serializer.associations.each do |association|
key = association.key
serializer = association.serializer
serializer = association.lazy_association.serializer
case key
when :post
@@ -93,7 +91,7 @@ module ActiveModel
flunk "Unknown association: #{key}"
end
assert_equal true, association.options.fetch(:include_data)
assert_equal true, association.include_data?
end
end
@@ -203,11 +201,11 @@ module ActiveModel
@post_serializer.associations.each do |association|
case association.key
when :comments
assert_instance_of(ResourceNamespace::CommentSerializer, association.serializer.first)
assert_instance_of(ResourceNamespace::CommentSerializer, association.lazy_association.serializer.first)
when :author
assert_instance_of(ResourceNamespace::AuthorSerializer, association.serializer)
assert_instance_of(ResourceNamespace::AuthorSerializer, association.lazy_association.serializer)
when :description
assert_instance_of(ResourceNamespace::DescriptionSerializer, association.serializer)
assert_instance_of(ResourceNamespace::DescriptionSerializer, association.lazy_association.serializer)
else
flunk "Unknown association: #{key}"
end
@@ -245,11 +243,11 @@ module ActiveModel
@post_serializer.associations.each do |association|
case association.key
when :comments
assert_instance_of(PostSerializer::CommentSerializer, association.serializer.first)
assert_instance_of(PostSerializer::CommentSerializer, association.lazy_association.serializer.first)
when :author
assert_instance_of(PostSerializer::AuthorSerializer, association.serializer)
assert_instance_of(PostSerializer::AuthorSerializer, association.lazy_association.serializer)
when :description
assert_instance_of(PostSerializer::DescriptionSerializer, association.serializer)
assert_instance_of(PostSerializer::DescriptionSerializer, association.lazy_association.serializer)
else
flunk "Unknown association: #{key}"
end
@@ -260,7 +258,7 @@ module ActiveModel
def test_conditional_associations
model = Class.new(::Model) do
attributes :true, :false
associations :association
associations :something
end.new(true: true, false: false)
scenarios = [
@@ -284,7 +282,7 @@ module ActiveModel
scenarios.each do |s|
serializer = Class.new(ActiveModel::Serializer) do
belongs_to :association, s[:options]
belongs_to :something, s[:options]
def true
true
@@ -296,7 +294,7 @@ module ActiveModel
end
hash = serializable(model, serializer: serializer).serializable_hash
assert_equal(s[:included], hash.key?(:association), "Error with #{s[:options]}")
assert_equal(s[:included], hash.key?(:something), "Error with #{s[:options]}")
end
end
@@ -341,8 +339,8 @@ module ActiveModel
@author_serializer = AuthorSerializer.new(@author)
@inherited_post_serializer = InheritedPostSerializer.new(@post)
@inherited_author_serializer = InheritedAuthorSerializer.new(@author)
@author_associations = @author_serializer.associations.to_a
@inherited_author_associations = @inherited_author_serializer.associations.to_a
@author_associations = @author_serializer.associations.to_a.sort_by(&:name)
@inherited_author_associations = @inherited_author_serializer.associations.to_a.sort_by(&:name)
@post_associations = @post_serializer.associations.to_a
@inherited_post_associations = @inherited_post_serializer.associations.to_a
end
@@ -361,28 +359,35 @@ module ActiveModel
test 'a serializer inheriting from another serializer can redefine has_many and has_one associations' do
expected = [:roles, :bio].sort
result = (@inherited_author_associations - @author_associations).map(&:name).sort
result = (@inherited_author_associations.map(&:reflection) - @author_associations.map(&:reflection)).map(&:name)
assert_equal(result, expected)
assert_equal [true, false, true], @inherited_author_associations.map(&:polymorphic?)
assert_equal [false, false, false], @author_associations.map(&:polymorphic?)
end
test 'a serializer inheriting from another serializer can redefine belongs_to associations' do
assert_equal [:author, :comments, :blog], @post_associations.map(&:name)
assert_equal [:author, :comments, :blog, :comments], @inherited_post_associations.map(&:name)
refute @post_associations.detect { |assoc| assoc.name == :author }.options.key?(:polymorphic)
assert_equal true, @inherited_post_associations.detect { |assoc| assoc.name == :author }.options.fetch(:polymorphic)
refute @post_associations.detect { |assoc| assoc.name == :author }.polymorphic?
assert @inherited_post_associations.detect { |assoc| assoc.name == :author }.polymorphic?
refute @post_associations.detect { |assoc| assoc.name == :comments }.options.key?(:key)
refute @post_associations.detect { |assoc| assoc.name == :comments }.key?
original_comment_assoc, new_comments_assoc = @inherited_post_associations.select { |assoc| assoc.name == :comments }
refute original_comment_assoc.options.key?(:key)
assert_equal :reviews, new_comments_assoc.options.fetch(:key)
refute original_comment_assoc.key?
assert_equal :reviews, new_comments_assoc.key
assert_equal @post_associations.detect { |assoc| assoc.name == :blog }, @inherited_post_associations.detect { |assoc| assoc.name == :blog }
original_blog = @post_associations.detect { |assoc| assoc.name == :blog }
inherited_blog = @inherited_post_associations.detect { |assoc| assoc.name == :blog }
original_parent_serializer = original_blog.lazy_association.options.delete(:parent_serializer)
inherited_parent_serializer = inherited_blog.lazy_association.options.delete(:parent_serializer)
assert_equal PostSerializer, original_parent_serializer.class
assert_equal InheritedPostSerializer, inherited_parent_serializer.class
end
test 'a serializer inheriting from another serializer can have an additional association with the same name but with different key' do
expected = [:author, :comments, :blog, :reviews].sort
result = @inherited_post_serializer.associations.map { |a| a.options.fetch(:key, a.name) }.sort
result = @inherited_post_serializer.associations.map(&:key).sort
assert_equal(result, expected)
end
end