Rails - Dec 2007 - Update a page from the database as changes happen

Hello all,

Could someone point me towards a recipe for getting the content of a
page to update based on changes in the database (versus updates to
controls on the page, for example), please?

Ideally I''d like fields on the page to change colour as activity
occurs asynchronously in the database, so perhaps updates would happen
in response to a timed event on the server side.

Thanks in advance,

Henry
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Look at periodically_call_remote.

http://api.rubyonrails.org

-Bill

Henry Collingridge wrote:
> Hello all,
>
> Could someone point me towards a recipe for getting the content of a
> page to update based on changes in the database (versus updates to
> controls on the page, for example), please?
>
> Ideally I''d like fields on the page to change colour as activity
> occurs asynchronously in the database, so perhaps updates would happen
> in response to a timed event on the server side.
>
> Thanks in advance,
>
> Henry
> >
>   
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On Dec 3, 2007 6:51 PM, Henry Collingridge
<henry.collingridge-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Ideally I''d like fields on the page to change colour as activity
> occurs asynchronously in the database, so perhaps updates would happen
> in response to a timed event on the server side.
If you already know when stuff is to change without re-querying the db
you can use simple javascript:

var seconds = 100
document.content.fieldFoo.value = ''100''
function display()
{
    document.content.fieldFoo.value = seconds
    if( seconds > 0 ) seconds -= 1
    if( seconds <= 0 ) window.location.reload( true );
    setTimeout( ''display()'', 1000 )
}
display()


-- 
Greg Donald
http://destiney.com/

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