copy opt-out-urls from xml feed

gistfile1.txt

    file = File.readlines( "20120628T111327_1" )
    hash = {}
    
    pairs =  file.grep( /extid|opt_out_url/ ).
                  map { |e| e.gsub( /<.*?>/, '' ) }.
                  map(&:strip)
    pairs.shift
    pairs.each_slice( 2 ) { |e| hash[e[0].to_i] = e[1] }
    hash.delete(0)
    
    UserApplication.find( hash.keys ).
                    select { |e| e.opt_out_url.blank? }.
                    each do |e|
                      e.opt_out_url = hash[e.id]
                      e.save( :validate => false )
                    end