Representations 追加（#241） (#267)

#241

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: #267

backend/app/representations/WikiPageRepr.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+
+module WikiPageRepr
+  BASE = { methods: [:title] }.freeze
+
+  module_function
+
+  def base wiki_page
+    wiki_page.as_json(BASE)
+  end
+
+  def many wiki_pages
+    wiki_pages.map { |p| base(p) }
+  end
+end

backend/app/representations/post_repr.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+
+module PostRepr
+  BASE = { include: { tags: TagRepr::BASE } }.freeze
+
+  module_function
+
+  def base post
+    post.as_json(BASE)
+  end
+
+  def many posts
+    posts.map { |p| base(p) }
+  end
+end

backend/app/representations/tag_repr.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+
+module TagRepr
+  BASE = { only: [:id, :category, :post_count], methods: [:name, :has_wiki] }.freeze
+
+  module_function
+
+  def base tag
+    tag.as_json(BASE)
+  end
+
+  def many tags
+    tags.map { |t| base(t) }
+  end
+end