Rails - Jul 2005 - arrays of form parameters

I''ve got one form where someone there is an array of text fields,
allowing the
user to enter a several foos.  I''d like to process these parameters as
an
array.  I''ve noticed that if the field is named foo[x], then I can
reference
it as "params[:foo][''x'']".

I was just wondering if there was someway to tell Rails I''d like
params[:foo]
to be an array not a hash.

Thanks.

On 8-jul-2005, at 10:53, David Corbin wrote:
> I''ve got one form where someone there is an array of text fields,
> allowing the
> user to enter a several foos.  I''d like to process these
parameters
> as an
> array.  I''ve noticed that if the field is named foo[x], then I can
> reference
> it as "params[:foo][''x'']".
>
> I was just wondering if there was someway to tell Rails I''d like  
> params[:foo]
> to be an array not a hash.
Yes. Use the [] notation instead of specifying a key (i.e. foo[]).  
However, I use numbers as hash keys and then just remap them in the  
controller.

-- 
Julian "Julik" Tarkhanov

On Saturday 09 July 2005 09:07 pm, Julian ''Julik'' Tarkhanov
wrote:
> On 8-jul-2005, at 10:53, David Corbin wrote:
> > I''ve got one form where someone there is an array of text
fields,
> > allowing the
> > user to enter a several foos.  I''d like to process these
parameters
> > as an
> > array.  I''ve noticed that if the field is named foo[x], then
I can
> > reference
> > it as "params[:foo][''x'']".
> >
> > I was just wondering if there was someway to tell Rails I''d
like
> > params[:foo]
> > to be an array not a hash.
>
> Yes. Use the [] notation instead of specifying a key (i.e. foo[]).
> However, I use numbers as hash keys and then just remap them in the
> controller.
What I think you''re saying, is write this method:

def foo
	input = []
	params[:foo].each {|k,v| input[k.to_i] = v}
	input
end

Is that correct?
David

On 10-jul-2005, at 3:25, David Corbin wrote:
>>
>
> What I think you''re saying, is write this method:
>
> def foo
>     input = []
>     params[:foo].each {|k,v| input[k.to_i] = v}
>     input
> end
>
> Is that correct?
> David
Yes. I just don''t think it does deserve a method. Actually I even  
think ActiveSupport must include some handy method for this, but  
(surely enough) I don;t know about it and it''s too late to go all  
over the AS source. But if you look you might find it readymade there.


-- 
Julian "Julik" Tarkhanov