Rails - Dec 2005 - Ruby Hash wierdness

Hi

I''m having problems with using a hash.  I put in a class and when I 
retrieve it, it''s automagically become a string

ie

  <%= button_link _("Export CSV"),
        SearchParams.get_url_hash({ :action => :export_csv, :klass => 
Customer }, params, @search_fields) %>

Customer is a class that is available to my view


def export_csv
    klass = params[:klass]
    cond = SearchParams.get_search_conditions(klass, params, @search_fields)
    set_csv_headers(klass)
    csv_export(klass, cond)
  end

but here klass (and params[:klass]) is a string?  What I really want to 
do is

  <%= button_link _("Export CSV"),
        SearchParams.get_url_hash({ :action => :export_csv(Customer) }, 
params, @search_fields) %>

Any ideas why my lovely Customer class is being butchered into a string :(

Kev

My guess is (and I am new to rails myself) is that the browser is not  
smart enough to send an object, it only knows how to post strings  
back to you. I have never tried to send a class back and forth I  
always just sent the ID and looked up that particular Customer in the  
action.

If you can send back a class than this would definitely be more DRY  
and I will have to go back and do some code cleanup if I am told  
differently in this thread. (only been on rails for about 1.5 months  
now)

Andrew

On Dec 15, 2005, at 5:16 AM, Kev Jackson wrote:
> Hi
>
> I''m having problems with using a hash.  I put in a class and when
I
> retrieve it, it''s automagically become a string
>
> ie
>
>  <%= button_link _("Export CSV"),
>        SearchParams.get_url_hash({ :action => :export_csv, :klass  
> => Customer }, params, @search_fields) %>
>
> Customer is a class that is available to my view
>
>
> def export_csv
>    klass = params[:klass]
>    cond = SearchParams.get_search_conditions(klass, params,  
> @search_fields)
>    set_csv_headers(klass)
>    csv_export(klass, cond)
>  end
>
> but here klass (and params[:klass]) is a string?  What I really  
> want to do is
>
>  <%= button_link _("Export CSV"),
>        SearchParams.get_url_hash({ :action => :export_csv 
> (Customer) }, params, @search_fields) %>
>
> Any ideas why my lovely Customer class is being butchered into a  
> string :(
>
> Kev
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