User can place a bid on a product.

@cgruppioni @SherrySeibel  - Please take a look.  The feature is limited to being able to place the bid.  No work has been done to display the bid in the views.  New user stories are in place for those items.
So the short answer is that this just won't work any other way.  If we pass it an object, render will call .to_partial on it, or look for the view by that name.  But if we want to send it to another controller's view, we have to pass it a string explicitly telling it which view to render.  In this case "the products/show".