rails 3中的factory girl和nested_attributes

Question

我有2个模型,一个接受另一个的属性,我试图找到一个聪明的方法来使用Factory girl为两者设置数据.

Class Booking
has_many :booking_items
accepts_nested_attributes_for :booking_items

Class BookingItem
belong_to :booking

我的工厂

Factory.define :booking do |f|
  f.bookdate Date.today+15.days
  f.association :space
  f.nights 2
  f.currency "EUR"
  f.booking_item_attributes Factory.build(:booking_item) # doesn't work
end

Factory.define :booking_item do |f|
  f.association :room
  f.bookdate Date.today
  f.people 2
  f.total_price 20
  f.association :booking
end

booking_spec

require "spec_helper"

describe Booking do

  before(:each) do
    @booking = Factory.create(:booking)
  end

  it "should be valid" do
    #needs children to be valid
    @booking.should be_valid
  end


end

我环顾了rdocs,但似乎无法找到我想要的东西.

Answer 1

如果我理解正确,你想要这样做,但使用更简洁的语法:

booking_item = Factory(:booking_item, :people => 4)
booking = Factory(:booking, :booking_item => booking_item)

因为你可以像这样快捷方式:

def with_assocs factory, assocs_hashes = {}, attrs = {}
  assoc_models = Hash[ assocs_hash.map { |k, v| [k, Factory(k, v)] } ]
  Factory factory, attrs.merge(assoc_models)
end

并使用这样的:

@booking = with_assocs :booking, :booking_item => {:people => 3}
@booking.should be_valid

在具有类似工厂定义的active_factory插件中,它看起来像这样:

models { booking - booking_item(:people => 3) }
booking.should be_valid

不幸的是,我还没有实现与factory_girl的集成.虽然如果你感兴趣,任何意见都非常欢迎.