Home/recommends/categories/shopping
Home/recommends/categories/nightview
Home/recommends/categories/food
Home/recommends/categories/area

resources :recommends, only: :index do
  collection do
    resources :categories, only: :show, controller: 'recommends' do
      collection do
        get :food
        get :area
        get :shopping
        get :nightview
      end
    end
  end
end

def food
  set_paginator
  @recommends = UserRecommend.where(category: "food").order('created_at desc').offset(@offset).limit(@limit).all
  @number_of_recommends = UserRecommend.where(category: "food").count
end

def area
  set_paginator
  @recommends = UserRecommend.where(category: "area").order('created_at desc').offset(@offset).limit(@limit).all
  @number_of_recommends = UserRecommend.where(category: "area").count
end

...

food.html.slim
area.html.slim
shopping.slim
nightview.slim

h1
  | Shopping ( or Area or Food... )
  = " (#{@number_of_recommends})"

= render partial: "layouts/paginator",
  locals: { total_items: @number_of_recommends, per_page: @limit, current_page: @page }

= render partial: "table", locals: { recommends: @recommends }

get "/recommends/:category" => "categories#show"

get "/recommends/:category" => "categories#show", categories: /food|area|shopping|nightview/

class CategoriesController < ApplicationController
  before_action :set_paginator

  def show
    # params[:category] is "food"/"area"/etc
    @recommends = UserRecommend.where(category: params[:category]).order('created_at desc').offset(@offset).limit(@limit).all
    @number_of_recommends = UserRecommend.where(category: :category).count
  end
end

# app/views/categories/show.slim
h1
  = params[:category].capitalize
  = " (#{@number_of_recommends})"

= render partial: "layouts/paginator",
  locals: { total_items: @number_of_recommends, per_page: @limit, current_page: @page }

= render partial: "table", locals: { recommends: @recommends }

# app/views/categories/show.slim
h1
  = t params[:category]

# config/locals/en.yml
en:
  categories:
    show:
      food: 'Food'
      area: 'Area'
      nightview: 'Night View'