Prompt in select_tag

Question

In my application in user registration I have a country picker..

<%= select(:user, :country, options_for_select(@COUNTRIES)) %>

And I wan

Answer 1

collection_select(:product,
  :category_id,
  Category.all,    
  :id,    
  :title,    
  {:prompt => true}
)

collection_select(:product,    
  :category_id,    
  Category.all,    
  :id,    
  :title,    
  {:include_blank => 'Please Select'}
)

both of these result in the same html, but the first one will not include the 'Please Select' option when you return to edit the previously created Product