Rails - Apr 2006 - render :partial + redirect_to :controller

This is of course disallowed, which I discovered only after nearly 
completing my spanking new ajaxified UI.  What is the motivation behind 
this, and what is the best workaround?

This UI does a scriptaculous drag-and-drop of items from a first div 
(div1) over to a second div (div2), which triggers the contents of div2 
to be updated to reflect the drop. No prob, thus far.  But then the 
contents of div1 must be re-sorted via controller (action1) based on 
what has been dropped into div2. THe re-sort of div1 must be done 
server-side. I currently update div2 via render :partial on the tail-end 
of the action (action2) that is triggered by the drop, and then re-sort 
div1 via a submit (form_remote_tag) to trigger action1 which does the 
sort and refreshes div1.

It would be nice to be able to either update both div1 and div2 from one 
of the actions, or allow action2 to update div2 via render :partial and 
then redirect_to action1, but that is not allowed, so what is the best 
recourse to having to use a submit?

Thanks - plutes

-- 
Posted via http://www.ruby-forum.com/.

are you using RJS templates?

using RJS you can update as much as you want on a page.

# action to call when element dropped into div2
def drag_item
  # do your work here
  render :update do |page|
    page.replace_html "div2", :partial => ...
    page.replace_html "div1", :partial => ...
  end
end


On 4/3/06, da plutes <pluto1@gmail.com> wrote:
>
> This is of course disallowed, which I discovered only after nearly
> completing my spanking new ajaxified UI.  What is the motivation behind
> this, and what is the best workaround?
>
> This UI does a scriptaculous drag-and-drop of items from a first div
> (div1) over to a second div (div2), which triggers the contents of div2
> to be updated to reflect the drop. No prob, thus far.  But then the
> contents of div1 must be re-sorted via controller (action1) based on
> what has been dropped into div2. THe re-sort of div1 must be done
> server-side. I currently update div2 via render :partial on the tail-end
> of the action (action2) that is triggered by the drop, and then re-sort
> div1 via a submit (form_remote_tag) to trigger action1 which does the
> sort and refreshes div1.
>
> It would be nice to be able to either update both div1 and div2 from one
> of the actions, or allow action2 to update div2 via render :partial and
> then redirect_to action1, but that is not allowed, so what is the best
> recourse to having to use a submit?
>
> Thanks - plutes
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
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Chris Hall wrote:
> are you using RJS templates?
No, just heard about them - and it seems like they''ll do the trick.

Thanks!

-- 
Posted via http://www.ruby-forum.com/.

Is there a simple way to check for the existence of a partial before 
displaying it?

I have some code that creates a dynamic partial depending on the city a 
particular object is located in.  There are some cities that do NOT have 
partials defined for them, but I still want the overall page to 
display.  Is there a way to either chefck for existence before 
displaying (enclosed in an if statement?)  or to tell the partial to 
skip if it cannot find the file?

<%= render :partial => ''listing/partials/additional_'' +
@city %>

Thanks,
Mark