Model Attributes

I'm having trouble with a model:

class Job < ActiveRecord::Base
  belongs_to :company
  belongs_to :city
  belongs_to :region
  belongs_to :country
  belongs_to :department
  belongs_to :user

  has_many :comments

  accepts_nested_attributes_for :city, :allow_destroy => :false
  accepts_nested_attributes_for :region, :allow_destroy => :false
  accepts_nested_attributes_for :country, :allow_destroy => :false
  accepts_nested_attributes_for :company, :allow_destroy => :false
  accepts_nested_attributes_for :department, :allow_destroy => :false
end

I'm trying to create a form with nested attributes but whenever I call
@job.city.build it complains that @job.city is nil.

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.build

Here is the associated controller code:

  def new
    @job = Job.new

    @job.city.build
    @job.region.build
    @job.counrty.build
    @job.department.build
    @job.company.build
  end

It would appear that I am wrong in my assumption that the relation in
the model allows me to treat city as an attribute. How would I go
about making this work?

I'm having trouble with a model:
def new
@job = Job.new

            @job\.city\.build
            @job\.region\.build
            @job\.counrty\.build
            @job\.department\.build
            @job\.company\.build

The magically created methods are @job.build_city etc.

Fred

Thank you much, that did the trick.

Fred's got the answer on this one, but holy database normalization
Batman! A 'country' string field is enough for most people...

--Matt Jones