Rails spinoffs - Dec 2007 - Prototype 1.6.0.1: reordering of ajax request params

Hello,

I''m using Ajax.Request to post array of structures from the client to
the Rails server app.
Simplified version of the request is as follows:

new Ajax.Request(''www.somesite.com'', {
    parameters:
''object_array[][field]=1&object_array[][other_field]=2&object_array[]
[field]=3&object_array[][other_field]=4''
    }
)

This works fine with prototype 1.5.1, and rails can recognize this as
nested structure:
params["object_array"] will be
[{"field" => "1", "other_field" =>
"2"}, {"field" => "3",
"other_field" => "4"}]

However, with the new Prototype version, when I invoke the code above,
the parameters string gets miraculously transformed into:
object_array[][field]=1&object_array[][field]=3&object_array[]
[other_field]=2&object_array[][other_field]=4

Notice how reordering happened, and how the two values of
''field'' are
first provided, followed by the values of ''other_field''.

This in turn breakes the behavior in Rails where:
params["object_array"] will be
[{"field" => "1"}, {"field" =>
"3", "other_field" => 2},
{"other_field" => "3"}]

Anybody has the idea why does this reordering occur, and what could I
do about it?
Obviously, I could send two arrays instead of one 2D array, but I''d
like to avoid it if possible.

Thanks in advance!

Regards,
Sasa
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I have opened a ticket for this problem:

http://dev.rubyonrails.org/ticket/8775

and there is another discussing the problem from the controller
perspective:

http://dev.rubyonrails.org/ticket/9030

and lastobelus posted a path that corrects the problem on the
controller side:

http://dev.rubyonrails.org/ticket/10101

Hope it helps.

Okada.


On Dec 14, 9:13 am, "sasa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<sasa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hello,
>
> I''m using Ajax.Request to post array of structures from the client
to
> the Rails server app.
> Simplified version of the request is as follows:
>
> new Ajax.Request(''www.somesite.com'', {
>     parameters:
>
''object_array[][field]=1&object_array[][other_field]=2&object_array[]
> [field]=3&object_array[][other_field]=4''
>     }
> )
>
> This works fine with prototype 1.5.1, and rails can recognize this as
> nested structure:
> params["object_array"] will be
> [{"field" => "1", "other_field" =>
"2"}, {"field" => "3",
> "other_field" => "4"}]
>
> However, with the new Prototype version, when I invoke the code above,
> the parameters string gets miraculously transformed into:
> object_array[][field]=1&object_array[][field]=3&object_array[]
> [other_field]=2&object_array[][other_field]=4
>
> Notice how reordering happened, and how the two values of
''field'' are
> first provided, followed by the values of ''other_field''.
>
> This in turn breakes the behavior in Rails where:
> params["object_array"] will be
> [{"field" => "1"}, {"field" =>
"3", "other_field" => 2},
> {"other_field" => "3"}]
>
> Anybody has the idea why does this reordering occur, and what could I
> do about it?
> Obviously, I could send two arrays instead of one 2D array, but
I''d
> like to avoid it if possible.
>
> Thanks in advance!
>
> Regards,
> Sasa
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