Making-mobile-requests-work-in-Sinatra.rb

    helpers do
      def mobile_request?
        mobile_user_agent_patterns.any? {|r| request.env['HTTP_USER_AGENT'] =~ r}
      end
      def mobile_user_agent_patterns
        [
          /AppleWebKit.*Mobile/,
          /Android.*AppleWebKit/
        ]
      end
    end

    before do
      !mobile_request? ? @mobile = ".mobile" : @mobile = ""
    end

    # homepage
    get '/' do
      haml :"index#{@mobile}", :layout => :"layout#{@mobile}"
    end


# And then I just have an index.haml & a index.mobile.haml as well as a layout.haml and a layout.mobile.haml

# Still needs some tidying up - but it works! And that's good enough for this hour. Bed time!