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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