Merge pull request #660 from kbullaughey/standardize_has_one_and_has_many_on_string_roots

Standardize has one and has many on string roots

Author: kurko

lib/active_model/serializer/association/has_many.rb

@@ -4,12 +4,11 @@ class Association
       class HasMany < Association
         def initialize(name, *args)
           super
-          @root_key = @embedded_key
+          @root_key = @embedded_key.to_s
           @key ||= case CONFIG.default_key_type
             when :name then name.to_s.pluralize
             else "#{name.to_s.singularize}_ids"
           end
-
         end
 
         def serializer_class(object, _)
@@ -37,4 +36,4 @@ def use_array_serializer?
       end
     end
   end
-end
+end

test/fixtures/poro.rb

@@ -47,6 +47,12 @@ def comments
   end
 end
 
+class SpecialPost < Post
+  def special_comment
+    @speical_comment ||= Comment.new(content: 'special')
+  end
+end
+
 class Comment < Model
 end
 
@@ -110,6 +116,12 @@ class PostSerializer < ActiveModel::Serializer
   has_many :comments
 end
 
+class SpecialPostSerializer < ActiveModel::Serializer
+  attributes :title, :body
+  has_many :comments, root: :comments, embed_in_root: true, embed: :ids
+  has_one :special_comment, root: :comments, embed_in_root: true, embed: :ids
+end
+
 class CommentSerializer < ActiveModel::Serializer
   attributes :content
 end

test/integration/active_record/active_record_test.rb

@@ -49,9 +49,9 @@ def test_serialization_embedding_ids_including_in_root
                 'ar_tag_ids' => [1, 2],
                 'ar_section_id' => 1
               },
-              ar_comments: [{ body: 'what a dumb post', 'ar_tag_ids' => [3, 2] },
+              'ar_comments' => [{ body: 'what a dumb post', 'ar_tag_ids' => [3, 2] },
                             { body: 'i liked it', 'ar_tag_ids' => [3, 1] }],
-              ar_tags: [{ name: 'happy' }, { name: 'whiny' }, { name: 'short' }],
+              'ar_tags' => [{ name: 'happy' }, { name: 'whiny' }, { name: 'short' }],
               'ar_sections' => [{ 'name' => 'ruby' }]
             }, post_serializer.as_json)
           end

test/unit/active_model/array_serializer/serialization_test.rb

@@ -85,7 +85,7 @@ class << @post2
               {title: "Title 1", body: "Body 1", "comment_ids" => @post1.comments.map(&:object_id) },
               {title: "Title 2", body: "Body 2", "comment_ids" => @post2.comments.map(&:object_id) }
             ],
-            comments: [
+            'comments' => [
               {content: "C1"},
               {content: "C2"},
               {content: "C3"},

test/unit/active_model/serializer/has_many_polymorphic_test.rb

@@ -140,7 +140,7 @@ def test_associations_embedding_ids_including_objects_serialization_using_as_jso
               { id: c.object_id, type: model_name(c) }
             end,
           },
-          attachments: [
+          'attachments' => [
             { type: :image, image: { url: 'U1' }},
             { type: :video, video: { html: 'H1' }}
           ]
@@ -153,7 +153,7 @@ def test_associations_embedding_nothing_including_objects_serialization_using_as
 
         assert_equal({
           'mail' => { body: 'Body 1' },
-          attachments: [
+          'attachments' => [
             { type: :image, image: { url: 'U1' }},
             { type: :video, video: { html: 'H1' }}
           ]
@@ -178,7 +178,7 @@ def fake
               { id: c.object_id, type: model_name(c) }
             end
           },
-          attachments: [
+          'attachments' => [
             { type: :image, image: { fake: 'fake' }},
             { type: :video, video: { fake: 'fake' }}
           ]

test/unit/active_model/serializer/has_many_test.rb

@@ -111,7 +111,7 @@ def test_associations_embedding_ids_including_objects_serialization_using_as_jso
 
         assert_equal({
           'post' => { title: 'Title 1', body: 'Body 1', 'comment_ids' => @post.comments.map { |c| c.object_id } },
-          comments: [{ content: 'C1' }, { content: 'C2' }]
+          'comments' => [{ content: 'C1' }, { content: 'C2' }]
         }, @post_serializer.as_json)
       end
 
@@ -128,7 +128,7 @@ def test_associations_embedding_ids_including_objects_serialization_when_invoked
             name: 'Name 1',
             posts: [{ title: 'Title 1', body: 'Body 1', 'comment_ids' => @post.comments.map { |c| c.object_id } }]
           },
-          comments: [{ content: 'C1' }, { content: 'C2' }]
+          "comments" => [{ content: 'C1' }, { content: 'C2' }]
         }, category_serializer.as_json)
       end
 
@@ -138,7 +138,7 @@ def test_associations_embedding_nothing_including_objects_serialization_using_as
 
         assert_equal({
           'post' => { title: 'Title 1', body: 'Body 1' },
-          comments: [{ content: 'C1' }, { content: 'C2' }]
+          'comments' => [{ content: 'C1' }, { content: 'C2' }]
         }, @post_serializer.as_json)
       end
 
@@ -155,7 +155,7 @@ def content
 
         assert_equal({
           'post' => { title: 'Title 1', body: 'Body 1', 'comment_ids' => @post.comments.map { |c| c.object_id } },
-          comments: [{ content: 'C1!' }, { content: 'C2!' }]
+          'comments' => [{ content: 'C1!' }, { content: 'C2!' }]
         }, @post_serializer.as_json)
       end
 
@@ -170,7 +170,7 @@ def serializable_object
 
         assert_equal({
           'post' => { title: 'Title 1', body: 'Body 1', 'comment_ids' => @post.comments.map { |c| c.object_id } },
-          comments: { my_content: ['fake'] }
+          'comments' => { my_content: ['fake'] }
         }, @post_serializer.as_json)
       end
 
@@ -191,16 +191,16 @@ def test_associations_embedding_ids_including_objects_serialization_with_embed_i
         @association.embed_in_root_key = :linked
         @association.embed = :ids
         assert_equal({
+          'post' => {
+            title: 'Title 1', body: 'Body 1',
+            'comment_ids' => @post.comments.map(&:object_id)
+          },
           linked: {
-            comments: [
+            'comments' => [
               { content: 'C1' },
               { content: 'C2' }
             ]
           },
-          'post' => {
-            title: 'Title 1', body: 'Body 1',
-            'comment_ids' => @post.comments.map(&:object_id)
-          }
         }, @post_serializer.as_json)
       end
 
@@ -211,18 +211,18 @@ def test_associations_embedding_ids_using_embed_namespace_including_object_seria
         @association.embed_namespace = :links
         @association.key = :comments
         assert_equal({
-          linked: {
-            comments: [
-              { content: 'C1' },
-              { content: 'C2' }
-            ]
-          },
           'post' => {
             title: 'Title 1', body: 'Body 1',
             links: {
               comments: @post.comments.map(&:object_id)
             }
-          }
+          },
+          linked: {
+            'comments' => [
+              { content: 'C1' },
+              { content: 'C2' }
+            ]
+          },
         }, @post_serializer.as_json)
       end
 

test/unit/active_model/serializer/has_one_and_has_many_test.rb

@@ -0,0 +1,27 @@
+require 'test_helper'
+
+module ActiveModel
+  class Serializer
+    class HasOneAndHasManyTest < Minitest::Test
+      def setup
+        @post = SpecialPost.new({ title: 'T1', body: 'B1'})
+        @post_serializer = SpecialPostSerializer.new(@post)
+      end
+
+      def teardown
+      end
+
+      def test_side_load_has_one_and_has_many_in_same_array
+        assert_equal({
+          "post" => {
+            title: 'T1',
+            body: 'B1',
+            'comment_ids' => @post.comments.map { |c| c.object_id },
+            'special_comment_id' => @post_serializer.special_comment.object_id,
+          },
+          "comments" => [{ content: 'C1' }, { content: 'C2' }, { content: 'special' }]
+        }, @post_serializer.as_json(root: 'post'))
+      end
+    end
+  end
+end