Rails - Oct 2007 - Unique identifier on render :partial with collection

Is there any way to pass a unique identifier to each iteration of a
partial generated using the :collection option?

I have a form that contains a variable number of text fields that
collect data into an array that''s processed in the controller upon
submit.  A text field can be added to the form using an AJAX request
that adds a new blank object to a collection and re-renders the partial
using the new collection.  The thing is, I need to be able to remove
text fields also, so they need to have a unique ID.

Is there some sort of unique identifier that is passed into the partial
when you''re using the :collection option?

Andrew
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Andrew Hite wrote:
> Is there any way to pass a unique identifier to each iteration of a
> partial generated using the :collection option?
> 
> I have a form that contains a variable number of text fields that
> collect data into an array that''s processed in the controller upon
> submit.  A text field can be added to the form using an AJAX request
> that adds a new blank object to a collection and re-renders the partial
> using the new collection.  The thing is, I need to be able to remove
> text fields also, so they need to have a unique ID.
> 
> Is there some sort of unique identifier that is passed into the partial
> when you''re using the :collection option?
> 
> Andrew
Nevermind!  I just found the "free" _counter variable that is made 
available to each iteration of the partial.
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On Tue, 2007-10-16 at 00:21 +0200, Andrew Hite wrote:
> Is there any way to pass a unique identifier to each iteration of a
> partial generated using the :collection option?
> 
> I have a form that contains a variable number of text fields that
> collect data into an array that''s processed in the controller upon
> submit.  A text field can be added to the form using an AJAX request
> that adds a new blank object to a collection and re-renders the partial
> using the new collection.  The thing is, I need to be able to remove
> text fields also, so they need to have a unique ID.
> 
> Is there some sort of unique identifier that is passed into the partial
> when you''re using the :collection option?
> 
> Andrew

There is a counter by the name of <partial_name>_counter, so
render(:partial => ''foo'', :collection => array) would
have a
foo_counter.


-- 
Tore Darell
toredarell-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Trondheim, NO
http://tore.darell.no/


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