$ git clone https://github.com/Ferial/search_demo_app
$ cd search_demo_app
$ bundle install
$ rake db:create
$ rake db:migrate
$ rake db:seed
$ rake ts:index
$ rails console
Item.color_in([3,4]).size_in([35,36]).with_title("Футболка").price_in_range(1000, 2000).order_by(:price, :asc)