Rails - Jun 2009 - Basic AJAX Response (Mootools)

Hi,

I''ve done AJAX calls to Rails'' Controllers before yet never
required to
generate a response back to the view. In this respect, I have tried to
keep it moronically simple and just add a node to see that it works, yet
the response doesn''t come through / isn''t interpreted as it
should. Long
story short, code :

// Have to use Mootools to integrate a Moo-specific JS Script

// @.js :

new Request(
{
 url: ''bla''
 onSuccess: function(responseText, responseXML)
  {
    console.warn(responseText);
    console.warn(responseXML);
  }
 ,
 onFailure: function(xhr)
  {
   alert(STD_ERR);
  }

}).send();

// @SomeController :

      respond_to do |format|
        format.html { head :ok }
        format.xml { render :xml => ({:foo => "bar"}.to_xml) }
      end

// Have tried format.json, with all the code involved (:json, .to_json),
yet
// nothing. The to_xml Method works in irb.

The responseText is "" and responseXML is Null on the callback. This
is
basic stuff, can''t see past my noobness :). So I just want to render
some xml back to the view, no models or anything yet. I have to mention
that Content-Length is set on the response header. I''m thinking
it''s a
no-brainer though :)

Thank you in advance !
-- 
Posted via http://www.ruby-forum.com/.

2009/6/14 Abe Ced
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>:
>
> Hi,
>
> I''ve done AJAX calls to Rails'' Controllers before yet
never required to
> generate a response back to the view. In this respect, I have tried to
> keep it moronically simple and just add a node to see that it works, yet
> the response doesn''t come through / isn''t interpreted as
it should. Long
> story short, code :
>
> // Have to use Mootools to integrate a Moo-specific JS Script
>
> // @.js :
>
> new Request(
> {
>  url: ''bla''
>  onSuccess: function(responseText, responseXML)
>  {
>    console.warn(responseText);
>    console.warn(responseXML);
>  }
>  ,
>  onFailure: function(xhr)
>  {
>   alert(STD_ERR);
>  }
>
> }).send();
>
> // @SomeController :
>
>      respond_to do |format|
>        format.html { head :ok }
>        format.xml { render :xml => ({:foo => "bar"}.to_xml)
}
>      end
>
> // Have tried format.json, with all the code involved (:json, .to_json),
> yet
> // nothing. The to_xml Method works in irb.
>
> The responseText is "" and responseXML is Null on the callback.
This is
> basic stuff, can''t see past my noobness :). So I just want to
render
> some xml back to the view, no models or anything yet. I have to mention
> that Content-Length is set on the response header. I''m thinking
it''s a
> no-brainer though :)
>
Have you proven to yourself that it is getting to your controller
action ok?  For example by breaking in with ruby-debug.

Colin

Colin Law wrote:
> 2009/6/14 Abe Ced
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>:
>>
>>  ,
>>        format.html { head :ok }
>> that Content-Length is set on the response header. I''m
thinking it''s a
>> no-brainer though :)
>>
> 
> Have you proven to yourself that it is getting to your controller
> action ok?  For example by breaking in with ruby-debug.
> 
> Colin
Yes, it is getting there - I''ll look into it now after some sleep :), 
perhaps there''s some nasty oversight. Still getting the same issues as 
before though.

-- 
Posted via http://www.ruby-forum.com/.

No-brainer after all, I was sending the request via HEAD, therefore I 
had to set a custom response header, such as :

// @Controller
respond_to do |format|
  headers["My-head"] = "abc"
  format.html { head :ok }
end

// @JS
onSuccess: function(responseText, responseXML)
{
  console.log(responseText);
  console.log(responseXML);
  alert(this.getHeader(''My-head''));
},

I changed to GET, used :

// @Controller
respond_to do |format|
  format.xml { render :xml => ({"abc" =>
"def"}.to_xml)}
end

// @JS
onSuccess: function(responseText, responseXML)
{
  console.log(responseXML);
  // Getting a XML Document, all fine.
},

Half an hour though, haha - now I can send and respond to requests, woot 
!? :) Thank you for the support !
-- 
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