Rails - Sep 2008 - Easy way to redirect to "Please Wait" page while JSON request completes?

Hello friends -

I have a rails app that uses JSON to send requests to another server. That
server processes the request and sends a JSON response back to the rails
app.

At first I was sending the requests using AJAX but the requests may take up
to 30 seconds, and users double-submitted, reloaded, etc. So, I was thinking
that upon submitting a request, I could then have rails forward to a
"Please
wait while we are processing your request" page. From there, rails will
send
the request and wait for a response. When the response is received (or a
timeout of 45 seconds is reached), I can redirect appropriately to the
result page.

My question is, I am not sure how to achieve this effect of having a
"Please
wait" page while asynchronously checking another server for a result. Does
anyone have any tutorials/advice/links on how to achieve this?

Alternatively, I have seen (using prototype or jquery) sites where when you
press the submit button, the screen greys out and a window is tiled on top
informing the user that the request is being processed. Is it possible to
utilize this method using ajax?

Thanks,
Jin

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You can just use a loading panel (that is also modal) to keep the user
from double submiting ->
http://thecodecentral.com/2008/01/17/a-yui-loading-panel-widget

On Thu, Sep 4, 2008 at 7:26 PM, Jin Lee
<jinslee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hello friends -
>
> I have a rails app that uses JSON to send requests to another server. That
> server processes the request and sends a JSON response back to the rails
> app.
>
> At first I was sending the requests using AJAX but the requests may take up
> to 30 seconds, and users double-submitted, reloaded, etc. So, I was
thinking
> that upon submitting a request, I could then have rails forward to a
"Please
> wait while we are processing your request" page. From there, rails
will send
> the request and wait for a response. When the response is received (or a
> timeout of 45 seconds is reached), I can redirect appropriately to the
> result page.
>
> My question is, I am not sure how to achieve this effect of having a
"Please
> wait" page while asynchronously checking another server for a result.
Does
> anyone have any tutorials/advice/links on how to achieve this?
>
> Alternatively, I have seen (using prototype or jquery) sites where when you
> press the submit button, the screen greys out and a window is tiled on top
> informing the user that the request is being processed. Is it possible to
> utilize this method using ajax?
>
> Thanks,
> Jin
>
> >
>


-- 
Maurício Linhares
http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/ (en)
João Pessoa, PB, +55 83 8867-7208

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