Sinatra+kaminariでPaginationしたい ref: http://qiita.com/jacoyutorius/items/5af67c298ea185f93dac

app.rb

require “sinatra”
require “padrino-helpers”
require “kaminari/sinatra”

helpers Kaminari::Helpers::SinatraHelpers

get "/" do 

  array = []
  data.each do |row|
    data = UserData.new
    data = row["userid"]
    data = row["count"]
    array << data
  end

  @userdata = Kaminari.paginate_array(array).page(params[:page]).per(18)

  erb :index
end

file1.txt

bundle install --path .bundle

file4.txt

bundle exec ruby app.rb

Gemfile

gem "sinatra"
gem "sinatra-contrib"
gem "hashie"
gem "tilt", github: "rtomayko/tilt", tag: "1.3.4"
gem "kaminari", :require => "kaminari/sinatra"
gem "padrino-helpers"

index.erb

<%= paginate @userdata %>