Hello folks,
Thanks very much for the suggestions - below are some comments:
On Feb 6, 4:13 am, "Richard Quadling" <[EMAIL PROTECTED]>
wrote:
> Unsure, but try this ...
>
> var searchParams = { a: 10, b: "hello", c: Object.toJSON($R(0,40)) };
This makes the ruby params hash look like this:
{"a"=>"10", "b"=>"hello", "c"=>"{\"start\": 0, \"end\": 40}",
"action"=>"get_houses", "controller"=>"browse"}
Ajax.Request can nicely send objects that do not have nested objects
to a rails controller such that the action params hash will be set
correctly. In this case you've turned the embedded object into a
string which was passed back correctly, but "c => start" and friends
cannot be accessed normally in the controller.
On Feb 6, 8:27 am, kangax <[EMAIL PROTECTED]> wrote:
> All you need is turn range object into an array by calling it's
> toArray method:
>
> new Ajax.Request('/browse/get_stuff', {
> parameters: { a: 10, b: 'helo', c: $R(0,40).toArray() },
> ...
> })
With this the query becomes:
http://localhost:3000/browse/get_houses?a=10&b=helo&c=0&c=1&c=2&c=3&c=4&c=5&c=...39&c=40
which surprised me quite a bit I must admit ;o) Of course, this makes
the ruby params hash become this:
{"a"=>"10", "b"=>"helo", "c"=>"0", "action"=>"get_houses",
"controller"=>"browse"}
which is not the intent.
One more note - the javascript object I wish to pass back to the
server is quite a bit more complicated that the example I gave, and
contains a list of sub-objects that have various parameters which
store the state for the client-side javascript application. Changing
the object itself would make my javascript significantly more
cumbersome, and I'd rather not pull out all of the sub-objects and
pass them back.
I was thinking that there was a standard way to pass JSON to rails
from the browser, one that could easily deal with nested objects.
Since the toJSON method nicely handles nested objects, I thought my
original suggestion was the obvious solution but rails will not parse
the returned parameters.
The person who filed this bug has a similar requirement to mine:
http://dev.rubyonrails.org/ticket/7494. He wanted to use
toQueryString to pass nested objects, but near the bottom of the
ticket mislav suggests that one "should seek rich data functionality
with JSON when we're not serializing forms" and closes the ticket as
"wontfix". I'm fine with using JSON, but I cannot get it to work.
Thanks again for all the help,
Mike.
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