Q:

Ruby on Rails: trying to create a new object that belongs to a user... not sure how to do it... correctly

Controllor:
  def new(user)
    @address = Address.new
    @address.user_id = user.id
  end

The link I click that triggers the error
<%= link_to "Add Address", new_address_path(current_user)%>

Address model
  belongs_to :user

User Model
  has_many :addresses

New Address View
<h1>New Address</h1>

<% form_for @address, :url => new_address_path do |f| %>
  <%= f.error_messages %>
  <%= render :partial => "form", :object => f %>
  <%= f.submit "Add Address" %>
<% end %>

Schema for Addresses
  create_table "addresses", :force => true do |t|
    t.string  "number"
    t.string  "street"
    t.string  "city"
    t.string  "state"
    t.string  "zip_code"
    t.integer "user_id"
  end

my routes
  map.resources :users
  map.resources :addresses

And the error is 
uninitialized constant AddressesController
Parameters:

{"format"=>"#<user:0x105498c60>"}

A:

In what controller is this method placed:
 def new(user)
    @address = Address.new
    @address.user_id = user.id
 end

