#77

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)