<% if object.reflections.keys.include?(:piggybak_sellable) -%>
<% if object.piggybak_sellable && object.piggybak_sellable.active -%>
<% if object.piggybak_sellable.quantity > 0 || object.piggybak_sellable.unlimited_inventory -%>
<%= form_tag piggybak.cart_add_url do -%>
<%= object.piggybak_sellable.description %>
<%= number_to_currency object.piggybak_sellable.price %>
<%= text_field_tag :quantity, "1" %>
<%= hidden_field_tag :sellable_id, object.piggybak_sellable.id %>
<%= submit_tag "Add to Cart", :id => "submit" %>
<% end -%>
<% else -%>
Sorry, out of stock.
<% end -%>
<% end -%>
<% end -%>