How to go about adding an image to the autocomplete, but more importantly returning an array of objects than an array of strings

_search.html.haml

- content_for :javascripts do 
  - cache('search_autocomplete') do
    :javascript
      $(function(){
        var products = JSON.parse#{auto_complete_products};
        $("#keywords").autocomplete(products,{
            appendToElement: ".autocomplete"
          });

      });

_searchTest.html.haml

- content_for :javascripts do 
  - cache('search_autocomplete') do
    :javascript
      $(function(){
        var products = JSON.parse#{auto_complete_products};
        $("#keywords").autocomplete(products,{
            appendToElement: ".autocomplete"
          });

      });

application_helper.rb

 def auto_complete_products
    product_names = Product.select('distinct products.name').active.on_hand.map(&:name)
    merchant_names = Couponcodes::Merchant.select("distinct store_name").active.by_store_name.map(&:store_name)
    (product_names + merchant_names).uniq.sort
 end