In rails controllers, how to prevent double submit (when user double-clic submit button or hit enter twice)?

Question

Well, everything\'s in the title but I\'ll explain a little more :-)

My rails app contain many forms (Ajaxified or not).

To prevent users to submit twice or more

Answer 1

Not a real suggestion (I won't be surprised of downvotes), but will your site still be usable without JS? How about showing him appropriate message that for normal operation he needs to enable the JS, otherwise you won't show him lots and lots of forms on the page.