Merge pull request #592 from ZmagoD/zd_SCI_160

removes TempFile after 7 days [fixes SCI-160]

app/controllers/teams_controller.rb

@@ -53,6 +53,7 @@ class TeamsController < ApplicationController
             )
 
             if @temp_file.save
+              @temp_file.destroy_obsolete
               # format.html
               format.json {
                 render :json => {

app/models/temp_file.rb

@@ -3,4 +3,11 @@ class TempFile < ActiveRecord::Base
 
   has_attached_file :file
   do_not_validate_attachment_file_type :file
+
+  def destroy_obsolete
+    destroy! if self
+  end
+
+  handle_asynchronously :destroy_obsolete,
+                        run_at: proc { 7.days.from_now }
 end