undefined method `create' for nil:NilClass when trying to create profile in user model

Question

I searched and found this Rails 3 undefined method `create' for nil:NilClass error while trying create a related object but that solution is also giving error - stack level too deep hence asking it on SO.

I have a user model and profile model with belongs_to and has_one relationship.

In my user.rb model I have

after_create :create_profile

def create_profile
  self.profile.create
end

but this is giving "undefined method `create' for nil:NilClass" at the self.profile.create line. The user is also not getting created nor the profile

Answer 1

after_create :create_profile is just enough, not necessary to define create_profile method, it's provided by rails.

Example:

class User < ActiveRecord::Base
  has_one      :profile
  after_create :create_profile
end