On Sep 7, 5:37 am, Sharon Machlis <[EMAIL PROTECTED]> wrote:
> So it's easy enough to pop some :onchange JavaScript code inline for a
> collection_select drop-down list. That code adds value of what's
> selected to a couple of other text fields:
>
> <label for="venue_id">Place*:</label> <%=
> collection_select(:event, :venue_id, @venues_all, :id, :name, {:prompt
> => " Please select a location"}, {:onchange => "var id = this.value;
> document.forms[0].elements[2].value=(id);document.forms[0].elements[3].valu
> e=document.forms[0].elements[5].value"})
> %>
>
> But I don't want the venue value (id number) in the text fields; I
> want venue.phone and venue.url in those fields. After numerous hours
> the past few days, I still don't understand how I can mix JavaScript
> and Ruby so I can access the venue.phone and venue.url values and have
> them update my form's other text fields. Any advice appreciated.
One way would be to make an ajax call from the on change handler. The
remote_function helper is good for this. Something like
remote_function( :url => {...}, :with => "'id='+this.value")
Should submit the selected id to the specified action. You can then
you some rjs to update the appropriate form elements.
Fred
>
> On Sep 4, 7:49 am, Frederick Cheung <[EMAIL PROTECTED]>
> wrote:
>
> > On 4 Sep 2008, at 13:36,SharonMachliswrote:
>
> > > Before I waste more time trying to figure that out, I was wondering if
> > > it's even possible? The Rails Way says that observe_field by default
> > > will trigger changes in text fields and text areas, and on clicks for
> > > radio buttons and check boxes. So perhaps I'm using the wrong tool
> > > here? Thanks.
>
> > should do, but i'd just use an onChange handler.
>
> > Fred
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