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
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...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
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
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...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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...-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> 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