[Rails] Re: REST requests with jQuery

Yes I have tried that, without the JSON.stringify() I don't get an
error but it doesn't work either, I get the following result:

Processing GroupingsController#update to json (for 127.0.0.1 at
2009-10-29 15:05:27) [PUT]
Parameters: {"id"=>"140", "_json"=>"_method=put&grouping=%5Bobject
+Object%5D"}
Grouping Load (0.5ms) SELECT * FROM "groupings" WHERE
("groupings"."id" = 140)
Completed in 14ms (View: 1, DB: 1) | 200 OK [http://localhost/
groupings/140.json]

On 29 Okt., 13:00, gdevore <greg.dev...@gmail.com> wrote:
> Have you tried just:
>
> $.ajax({
>     type: "PUT",
>     url:'/groupings/'+grpid+'.json',
>     data: grp_data,
>     contentType: 'application/json; charset=utf-8'
>
> });
>
> Without the JSON.stringify call?
>
> Greg
>
> On Oct 29, 5:32 am, Rainer Birkenmaier <rbirk...@googlemail.com>
> wrote:
>
>
>
> > Hi,
>
> > I'm trying to do a simple REST request to my rails app using jQuery
> > but can't get the data body right. It looks like parts are working and
> > parts aren't. I want to update a model so I have to use PUT, which I
> > emulate by using a POST request and adding the usual "_method" =>
> > "put". This seems to work, but the actual model data does not come
> > through. Here is the code:
>
> > var grpid = 138
> > var grp_data = {
> >     "_method": "put",
> >     "grouping": {
> >         "pos_x": col,
> >         "pos_y": row
> >     }}
>
> > $.post('/groupings/'+grpid+'.json', grp_data, null, 'json');
>
> > All I get in my rails app is:
>
> > Processing GroupingsController#update to json (for 127.0.0.1 at
> > 2009-10-28 12:05:33) [PUT]
> >   Parameters: {"grouping"=>"[object Object]", "id"=>"138"}
> >   Grouping Load (0.5ms)   SELECT * FROM "groupings" WHERE
> > ("groupings"."id" = 138)
> > NoMethodError (undefined method `stringify_keys!' for "[object
> > Object]":String):
> >   app/controllers/groupings_controller.rb:68:in `update'
>
> > So obviously the "_method" is interpreted correctly (I'll end up
> > seeing a PUT) but the data is not. I found a solution for now, which
> > is the following:
>
> > $.ajax({
> >     type: "PUT",
> >     url:'/groupings/'+grpid+'.json',
> >     data: JSON.stringify(grp_data),
> >     contentType: 'application/json; charset=utf-8'
>
> > });
>
> > But this solution ignores the "_method" information, so if I replace
> > "PUT" with "POST", again it doesn't work (but as far as I understand
> > "PUT" shouldn't be used for compatibility reasons).
>
> > I'm pretty sure I'm missing something fundamental, since this
> > operation should be a piece of cake and probably is being used all the
> > time, so it can't be that complicated. Especially the JSON.stringify()
> > in my solution seems clumsy ...
>
> > Anyone who sees what I'm doing wrong?
>
> > BTW: This application is running on rails 2.3.4
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