CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3rspecfactory-bot
Nick ONeill
Nick ONeill

Reputation: 7379

has_and_belongs_to_many associations in factory_girl 4.1

I'm new to factory_girl and trying to figure out how to effectively generate a factory for the following models:

class Company < ActiveRecord::Base
    has_and_belongs_to_many :tags
end

class Tags < ActiveRecord::Base
    has_and_belongs_to_many :companies

    validates :type , :inclusion => { :in => %w(market location) } 
end

I've taken a look at previous answers on StackOverflow (including this one), however most of them are outdated and/or don't have a proper answer to the question. Is there anybody out there that can help define factories for these two objects with Factorygirl?

Update

Here's what I've come up wtih so far

FactoryGirl.define do
factory :tag do
    id  448
        trait :market do
        type "market"
    end
    trait :location do
        type "location"
    end
    name "software"
end

factory :company do
    id  1234
    name "Apple Inc."
    factory :company_with_tags do
        #setting the default # of tags for companies
        ignore do
            tag_count   2
        end

            after(:create) do |company , evaluator|
                FactoryGirl.create_list(:tag , evaluator.tag_count , company: company)
            end 
    end
end
end

Upvotes: 4

Views: 1829

Answers (1)

zetetic
zetetic

Reputation: 47548

I think the problem is that the association name is specified incorrectly. A Tag has many companies, not one, so:

after(:create) do |company , evaluator|
  FactoryGirl.create_list(:tag , evaluator.tag_count , companies: [company])
end

As a side note, you want to avoid using type as a column name, unless you are trying to set up a polymorphic relationship.

Upvotes: 2

Related Questions