nested attributes with one-to-one relationship

Question

I'm sitting here now for 8 hours to figure out how that works: I'm trying to modify the example in http://asciicasts.com/episodes/196-nested-model-form-part-1 into a one-to-one relationship.

class Survey < ActiveRecord::Base
  has_one :question, :dependent => :destroy
  accepts_nested_attributes_for :question
end

class Question < ActiveRecord::Base
  belongs_to :survey
end

Controller:

def new  
  @survey = Survey.new  
  @survey.questions.build  
end

It works great if I use a one-to-many relationship like:

class Survey < ActiveRecord::Base
  has_many :questions, :dependent => :destroy
  accepts_nested_attributes_for :questions
end

What am I doing wrong?

What's failing and where? Can you post your view code or some errors? — Logan Leger
– Logan Leger, Commented Aug 30, 2011 at 20:46

Johan Hovda · Accepted Answer · 2011-10-24 12:22:41Z

2

Try @survey.build_question instead of @survey.questions.build.

I think that is the right way to build questions when you use a one-to-one relationship.

answered Oct 24, 2011 at 12:22

Johan Hovda

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