title: django: export current queryset to csv by button click in browser
body: <p>Hello experts!
  Could you please help. 
  I have few views that return different querysets.
  my goal is to export current queryset to csv when user click button in browser.</p>
  
  <p>Could you please recommend what is the best algorithm for doing this ?
  I already did all apart save query to csv only when button is clicked in browser.</p>
  
  <p>Thank you in advance!</p>