gistfile1.coffee

# Prevent double-clicking on things
$(document).on 'click', '.js-disable-on-click', ->
  $element = $(this)

  $element.attr('disabled', 'disabled')
  $element.html($element.data('disabled-text'))

  # Disabling the button prevents the form from submitting, so we have to force
  # the submit here.
  $element.closest('form').submit()

  false