Ruby on Rails

when i did it,it doesent work :s so im trying a way to do it !!
and about your function,i dont undersand it :/ it mean i add this code
to prototype.js and int the observer_fied i call it ?

On Apr 30, 5:06 pm, Walter Davis <wa...@wdstudio.com> wrote:
> On Apr 29, 2011, at 8:43 AM, Adel Mediouni wrote:
>
>
>
>
>
>
>
>
>
> > hi,
> > i would like to change a partial in my view with the change of the
> > item in a select_tag:
>
> > in the view:
>
> > <%= observe_field("payment_id", :url => {:controller
> > =>'user_admins' ,:action => 'rend_part'},:on => 'change', :frequency
> > => 0.1) %>
> > <%= select( "payment", "id", { "Visa" => "1", "Mastercard" => "2"}) %>
>
> > in controller :
>
> > def rend_part
>
> >   if params[:payment]['id']  == '1'
> >     render :partial => "patial_one"
> >   else
> >     render :partial => "patial_two"
>
> >   end
> > end
>
> And what happens when you do this? Does it work? Have you got a  
> function in place to update the page?
>
> In long-hand Prototype.js code, this would look something like this:
>
> $('my_picker').observe('change',function(evt){
>         new Ajax.Request('rend_part',{
>                 parameters:{
>                         payment_id:$F('my_picker')},
>                         onSuccess:function(transport){
>                                 $('some_div').replace(transport.responseText);
>                         }
>                 }
>         });
>
> });
>
> How you go about doing this with the Ajax helpers is an exercise for  
> the student...
>
> Walter
>
>
>
>
>
>
>
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