Ruby on Rails: how do I use a default placeholder thing in a select_tag?

Question

 <%= select_tag(:services, 
                       options_from_collection_for_select(Service.all, :id, :name))%>

And it displays all the ser

Answer 1

The better way to do this would be to use the :prompt parameter. Something like:

select("post", "person_id", Person.all.collect {|p| [ p.name, p.id ] }, {:prompt => 'Select Person'})

http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html