More associations

test/action_controller/json_api/fields_test.rb

@@ -5,7 +5,16 @@ module Serialization
     class JsonApi
       class FieldsTest < ActionController::TestCase
         class FieldsTestController < ActionController::Base
-          class PostSerializer < ActiveModel::Serializer
+          class AuthorWithName < Author
+            attributes :first_name, :last_name
+          end
+          class AuthorWithNameSerializer < AuthorSerializer
+            type 'authors'
+          end
+          class PostWithPublishAt < Post
+            attributes :publish_at
+          end
+          class PostWithPublishAtSerializer < ActiveModel::Serializer
             type 'posts'
             attributes :title, :body, :publish_at
             belongs_to :author
@@ -14,19 +23,19 @@ class PostSerializer < ActiveModel::Serializer
 
           def setup_post
             ActionController::Base.cache_store.clear
-            @author = Author.new(id: 1, first_name: 'Bob', last_name: 'Jones')
+            @author = AuthorWithName.new(id: 1, first_name: 'Bob', last_name: 'Jones')
             @comment1 = Comment.new(id: 7, body: 'cool', author: @author)
             @comment2 = Comment.new(id: 12, body: 'awesome', author: @author)
-            @post = Post.new(id: 1337, title: 'Title 1', body: 'Body 1',
-                             author: @author, comments: [@comment1, @comment2],
-                             publish_at: '2020-03-16T03:55:25.291Z')
+            @post = PostWithPublishAt.new(id: 1337, title: 'Title 1', body: 'Body 1',
+                                          author: @author, comments: [@comment1, @comment2],
+                                          publish_at: '2020-03-16T03:55:25.291Z')
             @comment1.post = @post
             @comment2.post = @post
           end
 
           def render_fields_works_on_relationships
             setup_post
-            render json: @post, serializer: PostSerializer, adapter: :json_api, fields: { posts: [:author] }
+            render json: @post, serializer: PostWithPublishAtSerializer, adapter: :json_api, fields: { posts: [:author] }
           end
         end
 

test/action_controller/json_api/transform_test.rb

@@ -5,9 +5,17 @@ module Serialization
     class JsonApi
       class KeyTransformTest < ActionController::TestCase
         class KeyTransformTestController < ActionController::Base
-          class Post < ::Model; attributes :title, :body, :author, :top_comments, :publish_at end
-          class Author < ::Model; attributes :first_name, :last_name end
-          class TopComment < ::Model; attributes :body, :author, :post end
+          class Post < ::Model
+            attributes :title, :body, :publish_at
+            associations :author, :top_comments
+          end
+          class Author < ::Model
+            attributes :first_name, :last_name
+          end
+          class TopComment < ::Model
+            attributes :body
+            associations :author, :post
+          end
           class PostSerializer < ActiveModel::Serializer
             type 'posts'
             attributes :title, :body, :publish_at

test/action_controller/namespace_lookup_test.rb

@@ -3,9 +3,16 @@
 module ActionController
   module Serialization
     class NamespaceLookupTest < ActionController::TestCase
-      class Book < ::Model; attributes :title, :body, :writer, :chapters end
-      class Chapter < ::Model; attributes :title end
-      class Writer < ::Model; attributes :name end
+      class Book < ::Model
+        attributes :title, :body
+        associations :writer, :chapters
+      end
+      class Chapter < ::Model
+        attributes :title
+      end
+      class Writer < ::Model
+        attributes :name
+      end
 
       module Api
         module V2
@@ -204,7 +211,7 @@ def namespace_set_by_request_headers
 
         assert_serializer ActiveModel::Serializer::Null
 
-        expected = { 'id' => 'invalid_namespace_book_id', 'title' => 'New Post', 'body' => 'Body', 'writer' => nil, 'chapters' => nil }
+        expected = { 'id' => 'invalid_namespace_book_id', 'title' => 'New Post', 'body' => 'Body' }
         actual = JSON.parse(@response.body)
 
         assert_equal expected, actual

test/action_controller/serialization_test.rb

@@ -135,7 +135,7 @@ def render_fragment_changed_object_with_relationship
           like = Like.new(id: 1, likeable: comment, time: 3.days.ago)
 
           generate_cached_serializer(like)
-          like.likable = comment2
+          like.likeable = comment2
           like.time = Time.zone.now.to_s
 
           render json: like

test/adapter/json_api/fields_test.rb

@@ -4,9 +4,17 @@ module ActiveModelSerializers
   module Adapter
     class JsonApi
       class FieldsTest < ActiveSupport::TestCase
-        class Post < ::Model; attributes :title, :body, :author, :comments end
-        class Author < ::Model; attributes :name, :birthday end
-        class Comment < ::Model; attributes :body, :author, :post end
+        class Post < ::Model
+          attributes :title, :body
+          associations :author, :comments
+        end
+        class Author < ::Model
+          attributes :name, :birthday
+        end
+        class Comment < ::Model
+          attributes :body
+          associations :author, :post
+        end
 
         class PostSerializer < ActiveModel::Serializer
           type 'posts'

test/adapter/json_api/include_data_if_sideloaded_test.rb

@@ -6,7 +6,7 @@ module Adapter
       class JsonApi
         class IncludeParamTest < ActiveSupport::TestCase
           IncludeParamAuthor = Class.new(::Model) do
-            attributes :tags, :posts
+            associations :tags, :posts
           end
 
           class CustomCommentLoader

test/adapter/json_api/linked_test.rb

@@ -1,6 +1,6 @@
 require 'test_helper'
 
-class NestedPost < ::Model; attributes :nested_posts end
+class NestedPost < ::Model; associations :nested_posts end
 class NestedPostSerializer < ActiveModel::Serializer
   has_many :nested_posts
 end
@@ -301,8 +301,8 @@ def test_nil_link_with_specified_serializer
       end
 
       class NoDuplicatesTest < ActiveSupport::TestCase
-        class Post < ::Model; attributes :author end
-        class Author < ::Model; attributes :posts, :roles, :bio end
+        class Post < ::Model; associations :author end
+        class Author < ::Model; associations :posts, :roles, :bio end
 
         class PostSerializer < ActiveModel::Serializer
           type 'posts'

test/adapter/json_api/links_test.rb

@@ -4,7 +4,7 @@ module ActiveModelSerializers
   module Adapter
     class JsonApi
       class LinksTest < ActiveSupport::TestCase
-        class LinkAuthor < ::Model; attributes :posts end
+        class LinkAuthor < ::Model; associations :posts end
         class LinkAuthorSerializer < ActiveModel::Serializer
           link :self do
             href "http://example.com/link_author/#{object.id}"

test/adapter/json_api/transform_test.rb

@@ -4,9 +4,17 @@ module ActiveModelSerializers
   module Adapter
     class JsonApi
       class KeyCaseTest < ActiveSupport::TestCase
-        class Post < ::Model; attributes :title, :body, :publish_at, :author, :comments end
-        class Author < ::Model; attributes :first_name, :last_name end
-        class Comment < ::Model; attributes :body, :author, :post end
+        class Post < ::Model
+          attributes :title, :body, :publish_at
+          associations :author, :comments
+        end
+        class Author < ::Model
+          attributes :first_name, :last_name
+        end
+        class Comment < ::Model
+          attributes :body
+          associations :author, :post
+        end
 
         class PostSerializer < ActiveModel::Serializer
           type 'posts'

test/cache_test.rb

@@ -50,7 +50,8 @@ class InheritedRoleSerializer < RoleSerializer
     end
 
     class Comment < ::Model
-      attributes :body, :post, :author
+      attributes :body
+      associations :post, :author
     end
 
     setup do
@@ -364,12 +365,12 @@ def test_fetch_attributes_from_cache
         manual_cached_attributes = ActiveModel::Serializer.cache_read_multi(serializers, adapter_instance, include_directive).with_indifferent_access
         assert_equal manual_cached_attributes, cached_attributes
 
-        assert_equal cached_attributes["#{@comment.cache_key}/#{adapter_instance.cache_key}"], Comment.new(id: 1, body: 'ZOMG A COMMENT').attributes.reject { |_, v| v.nil? }
-        assert_equal cached_attributes["#{@comment.post.cache_key}/#{adapter_instance.cache_key}"], Post.new(id: 'post', title: 'New Post', body: 'Body').attributes.reject { |_, v| v.nil? }
+        assert_equal cached_attributes["#{@comment.cache_key}/#{adapter_instance.cache_key}"], Comment.new(id: 1, body: 'ZOMG A COMMENT').attributes
+        assert_equal cached_attributes["#{@comment.post.cache_key}/#{adapter_instance.cache_key}"], Post.new(id: 'post', title: 'New Post', body: 'Body').attributes
 
         writer = @comment.post.blog.writer
         writer_cache_key = writer.cache_key
-        assert_equal cached_attributes["#{writer_cache_key}/#{adapter_instance.cache_key}"], Author.new(id: 'author', name: 'Joao M. D. Moura').attributes.reject { |_, v| v.nil? }
+        assert_equal cached_attributes["#{writer_cache_key}/#{adapter_instance.cache_key}"], Author.new(id: 'author', name: 'Joao M. D. Moura').attributes
       end
     end
     # rubocop:enable Metrics/AbcSize

test/fixtures/active_record.rb

@@ -73,21 +73,41 @@ class AuthorSerializer < ActiveModel::Serializer
     has_many :posts
   end
 end
+
 class Employee < ActiveRecord::Base
   has_many :pictures, as: :imageable
   has_many :object_tags, as: :taggable
 end
 
-class Picture < ActiveRecord::Base
-  belongs_to :imageable, polymorphic: true
-  has_many :object_tags, as: :taggable
+class PolymorphicSimpleSerializer < ActiveModel::Serializer
+  attributes :id
 end
 
 class ObjectTag < ActiveRecord::Base
   belongs_to :poly_tag
   belongs_to :taggable, polymorphic: true
 end
+class PolymorphicObjectTagSerializer < ActiveModel::Serializer
+  attributes :id
+  has_many :taggable, serializer: PolymorphicSimpleSerializer, polymorphic: true
+end
 
 class PolyTag < ActiveRecord::Base
   has_many :object_tags
 end
+class PolymorphicTagSerializer < ActiveModel::Serializer
+  attributes :id, :phrase
+  has_many :object_tags, serializer: PolymorphicObjectTagSerializer
+end
+
+class Picture < ActiveRecord::Base
+  belongs_to :imageable, polymorphic: true
+  has_many :object_tags, as: :taggable
+end
+class PolymorphicHasManySerializer < ActiveModel::Serializer
+  attributes :id, :name
+end
+class PolymorphicBelongsToSerializer < ActiveModel::Serializer
+  attributes :id, :title
+  has_one :imageable, serializer: PolymorphicHasManySerializer, polymorphic: true
+end