Rails 6上的工厂Bot 5在运行build_stubbed工厂时引发验证错误

Question

我有以下工厂

function_groups.rb

FactoryBot.define do
  factory :function_group do
    factory :reports do
      # id 4
      name { "Reports" }
      functions {
        [find_or_create(:organization_report_function),
         find_or_create(:account_status_report_function)]
      }
    end
  end
end

functions.rb

FactoryBot.define do
  factory :function do
    factory :organization_report_function do
      name { "Org Report Function" }
      module_class { "organization_report_function" }
    end

    factory :account_status_report_function do
      name { "Acct Status Report" }
      module_class { "account_status_report_function" }
    end
  end
end

在我的rails_helper.rb中，我的代码看起来像这样

rails_helper.rb

require 'email_spec'
require 'capybara/rails'
require 'capybara/rspec'
require 'capybara-screenshot/rspec'

require 'capybara/poltergeist'

SERVER_PORT = 10000 + ENV.fetch('TEST_ENV_NUMBER', 0).to_i
Capybara.server = :puma, { Silent: true }
Capybara.server_port = SERVER_PORT
Capybara.javascript_driver = :poltergeist

options = { :js_errors => false, :debug => false, :phantomjs => Phantomjs.path, :phantomjs_logger => "/dev/null", timeout: 120 }

Capybara.register_driver :poltergeist do |app|
  Capybara::Poltergeist::Driver.new(app, options)
end

Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

ActiveRecord::Migration.check_pending!

RSpec.configure do |config|
  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
  # config.fixture_path = "#{::Rails.root}/spec/fixtures"
  config.render_views
  config.include Warden::Test::Helpers
  config.include EmailSpec::Helpers
  config.include EmailSpec::Matchers
  config.include LoginMacros
  config.include BaseRateMacros
  config.include Requests::JsonHelpers, type: :controller
  config.include Devise::Test::ControllerHelpers, type: :controller
  config.include LoginControllerHelpers, type: :controller
  config.include(Shoulda::Matchers::ActiveModel, type: :model)
  config.include(Shoulda::Matchers::ActiveRecord, type: :model)

  config.before(:each) do
   allow(FunctionGroup).to receive(:find_by_name).with("Reports").and_return(build_stubbed(:reports))
  end
  config.use_transactional_fixtures = false

  config.include FactoryBot::Syntax::Methods

  config.infer_base_class_for_anonymous_controllers = false

end

主要问题是当我尝试运行build_stubbed(:reports)时出现错误

ActiveRecord::RecordInvalid Exception: Validation failed: Function group must exist

不知道为什么，因为我认为build_stubbed也应该能够创建工厂的父记录。

这很好，直到我切换到Factory Bot 5和Rails6。关于如何解决此问题的任何线索？在这里挣扎了一段时间。

Answer 1

尝试检查config.active_record.belongs_to_required_by_default的值。

[我发生的事情是在升级到Rails 6之前，我没有在config.load_defaults中使用config/application.rb，并且我依赖于belongs_to关联的旧的（在Rails 5.X之前）行为，默认情况下不需要。

升级到Rails 6时，我设置了config.load_defaults 6.0，它设置了belongs_to_required_by_default = true。

有两种方法可以解决此问题：

选项1：将config.active_record.belongs_to_required_by_default = false添加到config/application.rb。

选项2：更新模型中的belongs_to行，使您不需要的关联具有optional: true。

来源：https://guides.rubyonrails.org/configuring.html#results-of-config-load-defaults