ruby-on-rails-3 – rails 3 – FactoryGirl创建相关记录

Songs:
    has_many :song_arrangements,:dependent => :destroy
    has_many :song_arrangement_files,:through => :song_arrangements

Song Arrangements:
    belongs_to :song
    has_many :song_arrangement_files,:dependent => :destroy

Song Arrangement Files:
    belongs_to :song
    belongs_to :song_arrangement

Code in my spec file:
    before { FactoryGirl.create_list(:song,25) }

Code in the factory:
    FactoryGirl.define do
        factory :song do |s|
            s.sequence(:title) { |n| "Song Title #{n}" }
            s.sequence(:artist) { |n| "Song Artist #{n}" }
        end
    end

所以我的另一个答案帮助我做了我需要做的事情;然而,我需要基本上更深层次地进入一个级别的协会,而我正在使用该解决方案.我结束了重新阅读FactoryGirl协会的文档,并提出了适合我所有情况的解决方案.它创建歌曲,song_arrangements和song_arrangement_files.我确定代码不漂亮,但它可以工作,以后可以改进.希望这有助于任何人遇到相同类型的障碍.

FactoryGirl.define do
  factory :song do |s|
    s.sequence(:title) { |n| "Song Title #{n}" }
    s.sequence(:artist) { |n| "Song Artist #{n}" }

    factory :song_with_song_arrangements do
      ignore do
        song_arrangements_count 100
      end

      after(:create) do |song,evaluator|
        FactoryGirl.create_list(:song_arrangement,evaluator.song_arrangements_count,song: song)
      end
    end
  end

  factory :song_arrangement do |sa|
    song

    sa.sequence(:title) { |n| "Arrangement #{n}" }
    original_key 'A'
    bpm 75
    sa.sequence(:chart_content) { |n| "This is the chart content for Arrangement #{n}." }
    chart_mapping 'V1,C,V2,B,C'
    sa.sequence(:notes) { |n| "These are notes for the Arrangement #{n}." }

    factory :song_arrangement_with_song_arrangement_files do
      ignore do
        song_arrangement_files_count 100
      end

      after(:create) do |song_arrangement,evaluator|
        FactoryGirl.create_list(:song_arrangement_file,evaluator.song_arrangement_files_count,song_arrangement: song_arrangement)
      end
    end
  end

  factory :song_arrangement_file do |saf|
    song_arrangement
    song

    saf.sequence(:title) { |n| "Attachment #{n}" }
    url 'http://www.google.com'
    saf.sequence(:description) { |n| "This is the description of Attachment #{n}." }
  end
end

用于调用这些工厂的代码：

Songs:
    before(:each) { FactoryGirl.create_list(:song,25) }
Song Arrangements:
    before(:each) { FactoryGirl.create(:song_with_song_arrangements) }
Song Arrangement Files:
    before(:each) { FactoryGirl.create(:song_arrangement_with_song_arrangement_files) }