FactoryGirl + Ancestry with two level deep

Question

Basically:

• I have a Structure model that has many Subjects.
• Each subject has a parent and it can be 2-levels deep.
• A Structure has to have one Subject at_depth 0 and one Subject at_depth 2.

The problem:

• I can't figure out how to build my Subject Factory and how to make the association in the Structure Factory.

I'm on Rails 4, factory_girl_rails 4.2.1 and Ruby 2.0.0

Here is what I tried for the subject factory:

factory :subject_grand_parent do |f|
  name Forgery(:name).company_name

  factory :subject_parent do |s|
    f.parent { Factory.create(:subject_grand_parent) }

    factory :subject do |s|
      f.parent { Factory.create(:subject_parent) }
    end
  end
end

But I can't define parent two times.

And in the Structure factory I'm not sure how to define multiple subjects for my association. Here what I have now:

factory :structure do
  subjects {|structure| [structure.association(:subject)] }
  ...
end

Thanks in advance

Answer 1

Have you considered using after(:build) blocks ?

Answer 2

Alright, this seems to work:

Subject Factory:

factory :subject do name Forgery(:name).company_name

factory :subject_children do
  name Forgery(:name).company_name + ' child'

  after :build do |subject|
    subject_grand_parent   = Subject.create(name: Forgery(:name).company_name)
    subject_parent         = subject_grand_parent.children.create(name: Forgery(:name).company_name)
    subject.parent         = subject_parent
    subject.ancestry_depth = 2
  end
end

end

Structure Factory:

after(:build) do |structure|
  structure.subjects << FactoryGirl.build(:subject)
  structure.subjects << FactoryGirl.build(:subject_children)
end