在FactoryGirl中查找_or_initialize_by
我想知道FactoryGirl中是否存在find_or_initialize_by
的等价物来解决以下问题:
目标是该模型使用两个具有相同国家/地区的表。 我不想在国家使用序列(正如我在电子邮件中找到的那样)。
Country上有一个唯一性约束,但我的主要问题是,当我调用FactoryGirl.create(:click)时,它会创建两次相同的Country记录
因此,validation在测试中失败。
Rspec的:
# models/click_spec.rb describe Click do it "should have a valid constructor" do FactoryGirl.create(:click).should be_valid end end
工厂:
# factories/countries.rb FactoryGirl.define do factory :country do name "United States" slug "us" end end # factories/offers.rb FactoryGirl.define do factory :offer do association :country, factory: :country # Other columns end end # factories/users.rb FactoryGirl.define do factory :user do association :country, factory: :country # Other columns end end # factories/clicks.rb FactoryGirl.define do factory :click do association :offer, factory: :offer association :user, factory: :user # Other columns end end
模型:
class Country < ActiveRecord::Base validates :name, :slug, presence: true, uniqueness: { case_sensitive: false } validates :slug, length: { is: 2 } end
您应该能够使用initialize_with
来完成这项工作:
FactoryGirl.define do factory :country do name "United States" slug "us" initialize_with { Country.find_or_create_by_name(name) } end end
这将始终使用相同的国家/地区。 您可能希望嵌套工厂以允许其他工厂使用不同的名称:
FactoryGirl.define do factory :country do initialize_with { Country.find_or_create_by_name(name) } factory :united_states do name "United States" slug "us" end end end