Well I Have this models
in the view events/new.html.erb
<% f.fields_for :localization do |L| %>
<%= l.text_field :country %>
<%= l.text_field :state %>
<%= l.text_field :city %>
<% end %>
the events controller is ust saving the event model.
But when I submit the page I get "Localization expected, got
HashWithIndifferentAccess" I tried to modify the controller in many
ways, but this apper to be happening before arrive in the controller.
By the way, I will use this space also to ask you if there is a better
way to associate an event with an location making easy to reuse the
same location for different events and other models I will have?