gistfile1.txt

    desc "Pre-fetch data from the webservice to avoid calling in line" 
    task :prefetch => [:environment, :preload_resources] do
      UserLocality.all.collect { |ul| ul.locality }.uniq.each do |locality|
        Rails.cache.fetch("location:#{locality.wz_location_code}", :expires_in => 10.minutes) do
          locality.weather_location
        end
      end
    end