原文连接：http://rors.org/demos/custom-confirm-in-rails 里面还提供了 jQuery 和 Noty 的版本

$.rails.allowAction = (link) ->
  return true unless link.attr('data-confirm')
  $.rails.showConfirmDialog(link) # look bellow for implementations
  false # always stops the action since code runs asynchronously

$.rails.confirmed = (link) ->
  link.removeAttr('data-confirm')
  link.trigger('click.rails')

### Boostrap

$.rails.showConfirmDialog = (link) ->
  message = link.attr 'data-confirm'
  html = """
         <div class="modal" id="confirmationDialog">
           <div class="modal-header">
             <a class="close" data-dismiss="modal">x</a>
             <h3>Confirmation Dialog</h3>
           </div>
           <div class="modal-body">
             <p>#{message}</p>
           </div>
           <div class="modal-footer">
             <a data-dismiss="modal" class="btn">Cancel</a>
             <a data-dismiss="modal" class="btn btn-primary confirm">OK</a>
           </div>
         </div>
         """
  $(html).modal()
  $('#confirmationDialog .confirm').on 'click', -> $.rails.confirmed(link)

Also, you may need to use i18n-js for localization