I have found that you have to use post AND serialize your data in order to
get it to work.
function dofill(url) {
var options = {
method: 'post',
parameters: $('myform').serialize(), // just serialize for the one item
onSuccess: fill_in,
onFailure: ajax_err,
on0: ajax_err
};
new Ajax.Request( http://0.0.0.0:3000/, options );
On Sat, Jul 30, 2011 at 11:53 AM, emygdio <rodrigo.emyg...@gmail.com> wrote:
> Hi,
>
> I have a script that takes the value of selected option in a form,
> and makes a request ajax to a rails application. The ideia will be
> make a ajax request and return a option string to populate a select.
> At this moment I just made some tests, when the prototype makes a
> ajax request, this request wasn't made with post method. And the rails
> didn't understood the method used by request, as you can see bellow:
>
> The script:
> <pre>
> <script type="text/
> javascript">
> // we will add our javascript code here
> var SelectSubCat = Class.create();
> SelectSubCat.prototype = {
> initialize: function(select){
> this.category = $(select);
> this.category.onchange =
> this.request_ajax.bindAsEventListener(this);
> },
>
> request_ajax: function(e){
> new Ajax.Request("http://0.0.0.0:3000/
> search_sub_cat_and_return_option_to_select.json", {
>
> method: 'post',
>
> parameters: {id: this.category.value},
>
> onSuccess: function(transport){
>
> var json = transport.responseText.evalJSON();
>
> }
> });
> alert(json);
> }
> };
>
>
>
>
> </script>
> <form>
> <select name="cat" id="cat" size="0">
> <option value="54" >Academia</option>
> <option value="54" >Restaurante</option>
> <option value="54" >Bares</option>
> </select>
> <select name="sub" id="sub">
> <option value="">-- Selecione Sub
> Categorias --</otion>
> </select>
> </form>
> </pre>
>
> When the request was made with the ajax, the following message I see
> in the console:
>
> Started OPTIONS "/search_sub_cat_and_return_option_to_select.json" for
> 127.0.0.1 at Sat Jul 30 12:05:54 -0300 2011
> DEPRECATION WARNING: You are using the old router DSL which will be
> removed in Rails 3.1. Please check how to update your routes file at:
> http://www.engineyard.com/blog/2010/the-lowdown-on-routes-in-rails-3/.
> (called from /home/emygdio/Documentos/Projetos/GuiaDF/
> ws_guia_comercial_df/config/routes.rb:1)
>
> ActionController::RoutingError (No route matches "/
> search_sub_cat_and_return_option_to_select.json"):
>
>
> I made some test with another form post, to test the request to rails
> as you can see bellow:
> <form action="http://0.0.0.0:3000/
> search_sub_cat_and_return_option_to_select.json" method='post'>
> <select name="id" id="cat" size="0">
> <option value="54" >Academia</option>
> <option value="54" >Restaurante</option>
> <option value="54" >Bares</option>
> </select>
> <input type=submit>
> </form>
>
>
> And the result in console was:
>
> Started POST "/search_sub_cat_and_return_option_to_select.json" for
> 127.0.0.1 at Sat Jul 30 12:18:31 -0300 2011
> Processing by
> CatK2ItemController#search_sub_cat_and_return_option_to_select as JSON
> Parameters: {"id"=>"54"}
> CatK2Item Load (0.1ms) SELECT `gdf_k2_categories`.* FROM
> `gdf_k2_categories` WHERE `gdf_k2_categories`.`parent` = 54
> "[{option:'<option value='669'>Auditores </option><option
> value='670'>Contabilidade - Escritórios </option>'}]"
> Completed 200 OK in 21ms (Views: 4.1ms | ActiveRecord: 0.1ms)
>
>
> As can you see the rails understands properly the request, but the
> ajax request didn't made the request with the correct method.
> How Can I fix this?
>
> Thanks
>
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