Railsで/blog/:year/:month/:dayで日付の投稿を複数表示させたい（１）

[sourcecode language='ruby'  padlinenumbers='true']
get '/:year(/:month(/:day))' => 'calendar#index',:constraints =>{ :year => 'YYYY',:month =>'MM', :day =>'DD'}
[/sourcecode]

[sourcecode language='ruby' ]
namespace :posts do
    get 'index'
    get 'page/:page', action: :index
    scope ':year', year: /\d{4}/ do
      get 'page/:page', action: :index
      scope ':month', month: /\d{1,2}/ do
        get 'page/:page', action: :index
        scope ':day', day: /\d{1,2}/ do
          get 'page/:page', action: :index
        end
      end
    end
  end
[/sourcecode]

[sourcecode language='ruby' ]
range = Date.yesterday.beginning_of_day..Date.yesterday.end_of_day
User.where(created_at: range)


User.where(created_at: 1.day.ago.all_day)
[/sourcecode]

[sourcecode language='bash' ]
get "/hoge/:year:month" => "hoge#show", :constraints => { :year => /[1-9][0-9]{3}/, :month => /[01][0-9]/ }

 上記の例だと
http://****/hoge/2011/12
でアクセスした場合、 hoge コントローラの show アクションが呼ばれる。
params[:year] = 2011,
params[:month] = 12
がそれぞれ取得できる
[/sourcecode]

[sourcecode language='bash' ]
get "/operations/:year:month:day" => "operations#index", :constraints => { :year => /[12][0-9]{3}/, :month => /[01][0-9]/, :day => /[0-3][0-9]/ }



 上記の例だと
http://****/operations/2011/12/05
でアクセスした場合、 operations コントローラの index アクションが呼ばれる。
params[:year] = 2011,
params[:month] = 12
params[:day] = 05
がそれぞれ取得できる
[/sourcecode]

[sourcecode language='bash' ]
scope "/blog" do
   resources :year, controller :operations, only: :show, path: "" do
      resources :month, controller :operations, only: :show, path: "" do
         resources :title, controller :operations, only: :show, path: ""
      end
   end
end
[/sourcecode]

[sourcecode language='ruby' ]
  def show
    case true
         when params[:year].present?
           @operations = Operation.where "created_at >= ? and created_at < ?", params[:year]
         when params[:month].present?
           @operations = Operation.where "created_at >= ? and created_at < ?", params[:month]
         when params[:day].present?
           @operations = Operation.where "created_at >= ? and created_at < ?", params[:day]
         when params[:id].present?
           @operations = Operation.find params[:id]
      end
  end
[/sourcecode]

[sourcecode language='ruby' ]
scope :created_at_limit,
where(:created_at=> 6.months.ago..Time.now)
[/sourcecode]