update csv import job

Rakefile

@@ -155,3 +155,13 @@ task :workoff_failed_jobs => [:environment, :set_ar_stdout, :set_logger_stdout]
     worker.run(job)
   end
 end
+
+task :reverse_csv do
+  file = ENV["file"] || raise("need 'file' (file path)")
+  in_csv = CSV.parse(File.open(file, "r+"), headers: true)
+  out_csv = CSV.new(File.open("rev_" + file, "w"), write_headers: true, headers: in_csv.headers)
+  in_csv.reverse_each do |row|
+    out_csv << row.map(&:second)
+  end
+  out_csv.close
+end