#77

backend/app/controllers/nico_tags_controller.rb

@@ -0,0 +1,24 @@
+class NicoTagsController < ApplicationController
+  def index
+    limit = (params[:limit] || 20).to_i
+    cursor = params[:cursor].presence
+
+    q = Tag.nico_tags.includes(:linked_tags)
+    q = q.where('tags.updated_at < ?', Time.iso8601(cursor)) if cursor
+
+    tags = q.limit(limit + 1)
+
+    next_cursor = nil
+    if tags.size > limit
+      next_cursor = tags.last.updated_at.iso8601(6)
+      tags = tags.first(limit)
+    end
+
+    render json: { tags: tags.map { |tag|
+      tag.as_json(include: :linked_tags)
+    }, next_cursor: }
+  end
+
+  def upload
+  end
+end

backend/app/controllers/posts_controller.rb

@@ -6,14 +6,10 @@ class PostsController < ApplicationController
   # GET /posts
   def index
     limit = (params[:limit] || 20).to_i
-    cursor = params[:cursor]
+    cursor = params[:cursor].presence
 
     q = filtered_posts.order(created_at: :desc)
-
-    next_cursor = nil
-    if cursor.present?
-      q = q.where('posts.created_at < ?', Time.iso8601(cursor))
-    end
+    q = q.where('posts.created_at < ?', Time.iso8601(cursor)) if cursor
 
     posts = q.limit(limit + 1)