运行 build_stubbed factory 时，Rails 6 上的 Factory Bot 5 会引发验证错误

Question

我有以下工厂

函数组.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

函数.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，我的代码如下所示

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时build_stubbed(:reports)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。

在我切换到 Factory Bot 5 和 Rails 6 之前，这一直运行良好。有关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 的值config.active_record.belongs_to_required_by_default。

发生在我身上的是在升级到 Rails 6 之前，我没有使用config.load_defaultsin config/application.rb，我依赖于belongs_to默认情况下不需要的旧的（Rails 5.X 之前）关联行为。

当我升级到 Rails 6 时，我设置了config.load_defaults 6.0，其中设置了belongs_to_required_by_default = true.

有两种方法可以解决这个问题：

选项 1：添加config.active_record.belongs_to_required_by_default = false到config/application.rb.

选项 2：更新您belongs_to的模型中的行，以包含optional: true您不希望被要求的关联。

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