I\'m trying to set up a date of birth helper in my Rails app (2.3.5). At present it is like so.
<%= f.date_select :date_of_birth, :start_year => Time.n
I think that easiest way is to assign it in controller, for example for new action:
@person = Person.new(:date_of_birth => "2010-01-01".to_date)
Then in your view you will get correct date.
EDIT:
If you want to assign default value on model level, you can try do it with plugin. However I haven't try it.