pier-oliviert · December 10, 2014 15:44
diff --git a/form.html.erb b/form.html.erb
 <!-- This work for a new contact, but will not for an existing contact -->
 <%= form_for [contact.client, contact] do |f| %>
 <% end %>

 <!-- This work for an existing contact, but will not for a new contact -->
 <%= form_for [contact] do |f| %>
 <% end %>
diff --git a/routes.rb b/routes.rb
 Rails.application.routes.draw do
  resources :clients do
    resources :contacts, shallow: true
  end
 end
	<!-- This work for a new contact, but will not for an existing contact -->
	<%= form_for [contact.client, contact] do \|f\| %>
	<% end %>

	<!-- This work for an existing contact, but will not for a new contact -->
	<%= form_for [contact] do \|f\| %>
	<% end %>
	Rails.application.routes.draw do
	resources :clients do
	resources :contacts, shallow: true
	end
	end