CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-4rspecfactory-bot
theDrifter
theDrifter

Reputation: 1696

Rails FactoryGirl - Create specific factories in order to meet fk dependancies

Factories are defined in multiple files under /factories/ or in the factories.rb file

spec/factories/*.rb
spec/factories.rb

The model customer test needs the customer factory. This factory has a foreign key pointing to an address factory.

Now if i run

rspec spec/model/customer_spec.rb

i get the following error

postgresql_adapter.rb:602:in `exec_prepared': PG::ForeignKeyViolation:
ERROR:  insert or update on table "customers" violates foreign key constraint "fk_rails_580b7e1bd8" (ActiveRecord::InvalidForeignKey)
DETAIL:  Key (address_id)=(1) is not present in table "addresses".
: INSERT INTO "customers" ("date_of_birth", "created_at", "updated_at", , "female_household_members", "male_household_members", "pin_code", "national_id", ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9) RETURNING "id"

FactoryGril tries to build the customer factory first and failes because of the missing entry in the address table.

How can i avoid these dependency issues? Can i somehow define to build some basic factories first ?

Upvotes: 0

Views: 571

Answers (2)

max
max

Reputation: 102036

I would really be consistent and use one file per factory (model) for consistency. Don't make others dig around. 

# spec/factories/addresses.rb
FactoryGirl.define do
  factory :address do
    # ...
  end
end

# spec/factories/customers.rb
FactoryGirl.define do
  factory :customer do
    association :address
    # or the short form
    address
  end
end

All you need to do is reference the address factory from customer. And factory_girl will create the associated record.

Upvotes: 2

Twizty
Twizty

Reputation: 112

Have you tried adding association :address to the customer factory? It would be easier to help if you showed your customer and address factories.

Upvotes: 1

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