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

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

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

Here is the associated controller code:

  def new
    @job =

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 =


The magically created methods are @job.build_city etc.


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