Rails drop down lists

RailsDropDownListsControllerCode.rb

if params[:category] != nil
  @category = params[:category]
  if @store == "[Uncategorized]"
    #Get all uncategorized products
  else
    category = Category.find(@category)
    #Get the products from that category
  end
end

RailsDropDownListsViewCode.rhtml

<%= select_tag('category', options_for_select(["[Uncategorized]"], @category) + options_from_collection_for_select(Category.find(:all), "id", "description", @category.to_i)) %>