CODEWITHSUNDEEP
ruby-on-railsrspecfactory-bot
xxjjnn
xxjjnn

Reputation: 15259

rspec factory girl pass association to association

Given these Rails models:

class Human
  has_many :pets
  has_many :vet_visits
end
class Pet
  belongs_to :human 
  has_many :vet_visits
end
class VetVisit
  belongs_to :human
  belongs_to :pet
end

I need an rspec factory to make a VetVisit. But:

FactoryGirl.define do
  factory :vet_visit, class: 'VetVisit' do 
    association :human, factory: :human
    association :pet, factory: :pet
  end
  factory :pet, class: 'Pet' do 
    association :human, factory: :human
  end
  factory :human, class: 'Human' do 
    after(:create) do | human |
      create :pet, human: human
    end
  end
end

results in a vet_visit with a human and a pet which are not each other's respective pet/human.

How do I make a factory which creates a vet_visit which has a pet with a human which is the same human as referenced by the vet_visit?

To clear any doubt, I am not in fact making a vetinary system, this is an abstract example from a more complex system, removing the human and doing vet_visit.pet.human in the code is not suitable

Upvotes: 1

Views: 1112

Answers (2)

JK Gunnink
JK Gunnink

Reputation: 153

I think you need to use inverse_of relationships in order for this to work.

When you create a human, a pet is created. That pet belongs to the human, but the human doesn't know about the pet.

Have a look here: http://guides.rubyonrails.org/association_basics.html#bi-directional-associations

Upvotes: 0

MageeWorld
MageeWorld

Reputation: 402

If you need a vet visit that refers to a specific pet and human then build it within your spec file.

let(:vet_visit) { FactoryGirl.create(:vet_visit, human: human, pet: pet) }

This presumes you've already created a human and pet within your spec file.

Upvotes: 2

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