How can I use jQuery UJS to submit a form via AJAX after the change event of a select box fires in Rails? -

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how can use jquery ujs submit form after change event of select box fires in rails?

my view looks this:

<% perm in @permissions %>   <%= form_for [@brand,perm], { :remote => true } |f| %>     <tr id="permission_<%= perm.id %>">       <td><%= perm.configurable.name %></td>       <td><%= f.select :action, ['none', 'read', 'update', 'manage'] %></td>     </tr>   <% end %> <% end %>

pretty straightforward. controller so:

class permissionscontroller < applicationcontroller      before_filter :authenticate_user!      respond_to :html, :js      load_and_authorize_resource :brand     load_and_authorize_resource :permission, :through => :brand      def index     end      def update       @permission = permission.find(params[:id])       @permission.update_attributes(params[:permission])     end  end

and in application.js:

// place application-specific javascript functions , classes here // file automatically included javascript_include_tag :defaults $(function() {   $("#permission_action").change(function() {     this.form.submit(); // needs ajax call, how?   }); })

please note form submission fires fine. doing regular post rather ajax submission. when place submit button on form , use that, ajax submission works fine. need change:

this.form.submit();

to ajax call, don't know how. can help?

i see using jquery that's good. following code taken here: http://railscasts.com/episodes/136-jquery

i advise familiar these screen casts ton (understatement).

// public/javascripts/application.js jquery.ajaxsetup({    'beforesend': function(xhr) {xhr.setrequestheader("accept", "text/javascript")} })  jquery.fn.submitwithajax = function() {   this.submit(function() {     $.post(this.action, $(this).serialize(), null, "script");     return false;   })   return this; };  $(document).ready(function() {   $("#new_review").submitwithajax(); })

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