El Wednesday 28 January 2009 22:31:48 chris escribió:
> I've been searching all day for a way to make this work and I've found
> bits and piece but I can't seem to put it all together. How do I
> filter a table dynamically using a drop down box?
>
> I've seen references to conditions_for_collection and maybe that's the
> direction I need to go any help would be greatly appreciated.
>
> --- index.html.erb ----
>
> Drop Down:
>
> <%= select("promotion", "promotion_type_id", PromotionType.find
> (:all).collect {|p| [p.promotype, p.id]}) %>
>
> Active Scaffold
>
> <%= render :active_scaffold => 'promotion_spots', :constraints =>
> {:account_id => @account.id}, :conditions => "promotion_type_id=#
> {'promotion_promotion_type_id}" %>
>
> I'm not sure how to link the drop down box to active_scaffold and have
> the table reload the content dynamically.
>
The select must be in a form and you must send the form when you change the
selected value, using a submit button or sending by ajax.
In the controller you get the value in params hash:
@promotion_id = params[:promotion]
And in the view you can use it in conditions:
<%= render :active_scaffold => 'promotion_spots', :constraints =>
{:account_id => @account.id}, :conditions => "promotion_type_id=#
{...@promotion_id}" %>
If you don't want to use render :active_scaffold you can override list.rhtml
and put the form with the select there and render :super after the form. Then
you can use conditions_for_collection:
def conditions_for_collection
"promotion_type_id=#{params[:promotion]}" if params[:promotion]
end
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