## [plain_text]
Trying to create a form that stores submitted data into more than one table
Getting the following error: undefined method `address_1' for #<Customer:0xb7c6b2b0>

## customer.rb [ruby_on_rails]
class Customer < ActiveRecord::Base
  has_many :addresses, :dependent => :destroy
  validates_presence_of :title, :forename, :surname, :company
end

## address.rb
class Address < ActiveRecord::Base
  belongs_to :customer
end

##new.html.erb
<h2>Register New Company</h2>
 <%= error_messages_for :customer %>
 <% form_for(@customer) do |f| %>
  <h3>Contact Information</h3>
  <p>
    <b>Title</b><br />
    <%= select(:customer, :title, ["Mr", "Mrs", "Miss", "Ms"]) %>
  </p>
  <p>
    <b>Forename</b><br />
    <%= f.text_field :forename %>
  </p>
  <p>
    <b>Surname</b><br />
    <%= f.text_field :surname %>
  </p>
  <p>
    <b>Company</b><br />
    <%= f.text_field :company %>
  </p>
  <p>
    <%= f.submit "Create" %>
  </p>
  <h3>Primary Address</h3>
  <p>
    <b>Address Line 1</b><br />
    <%= f.text_field :address_1 %>
  </p>
<% end %>

<%= link_to 'Back', customers_path %>