scope your frequent requests

with_scope.rb

# Final
class Following < ActiveRecord::Base
  $scope :recent, lambda { where(:user_id => current_user.id).where(['created_at > ?', 2.days.ago]) }
end

class UserController < ApplicationController
  def index
    @followings = current_user.followings.recent
  end
end

without_scope.rb

# Initial
class Following < ActiveRecord::Base
end

class UserController < ApplicationController
  def index
    @followings = Following.where(:user_id => current_user.id).where(['created_at > ?', 2.days.ago])
  end
end