Factory_girlとhas_many 'through'モデルを正しく使用する方法

Question

Factory Girlのコールバックモデルと方法論を少し苦にしています。この投稿を使用してhttp://robots.thoughtbot.com/post/254496652/aint-no-calla-back-girl私はそれを与えることを始めた、今私は仕様で誤りです。私はRailsを初めて使っているので、本当に根本的なものが欠けているかもしれません。

エラーは次のとおりです。 失敗/エラー：@user =工場（：ADMIN_USER） 未定義のメソッド 'はそれぞれ' ＃

モデルの：

class User < ActiveRecord::Base 
    # Include default devise modules. Others available are: 
    # :token_authenticatable, :confirmable, :lockable and :timeoutable 
    devise :database_authenticatable, :registerable, :lockable, 
     :recoverable, :rememberable, :trackable, :validatable, :token_authenticatble 

    # Setup accessible (or protected) attributes for your model 
    attr_accessible :username, :email, :role_ids, :password, :password_confirmation, :remember_me 
    has_many :userroles 
    has_many :roles, :through=>:userroles 


    def role?(role) 
    return !!self.roles.find_by_name(role.to_s.camelize) 
    end 
end 

class Role < ActiveRecord::Base 
    attr_accessible :name 

    validates :name, :presence=>true, 
        :length=>{:minimum=>4, :maximum=>30} 

    has_many :userroles 
    has_many :users, :through=>:userroles 
end 

class Userrole < ActiveRecord::Base 
    attr_accessible :user_id, :role_id 
    belongs_to :user 
    belongs_to :role 
end 

工場：

Factory.define :user do |f| 
    f.email 'someone@somecompany.com' 
    f.username 'foo' 
    f.password '123456' 
end 

Factory.define :role do |r| 
    r.name 'testrole' 
end 

Factory.define :userrole do |ur| 
    ur.association(:role) 
    ur.userrole{|ur| ur.userrole(:user)} 
end 
Factory.define :admin_role, :class => 'Role' do |userrole| 
    userrole.role { |role| role.association(:role, :name => "Admin") } 
end 

Factory.define :admin_user, :parent => :user do |user| 
    user.after_create { |u| Factory(:admin_role, :userroles => u) } 
end 

最後にシンプルな仕様：

require File.dirname(__FILE__) + '/../spec_helper' 

describe RolesController do 
    fixtures :all 
    include Devise::TestHelpers 
    render_views 

before (:each) do 
    @user = Factory(:admin_user) 
    sign_in @user 
    end 

    it "index action should render index template" do 
    get :index 
    response.should render_template(:index) 
    end 
end 

更新：スタックトレース

ruby-1.9.2-p136 :001 > u=Factory(:admin_user) 
NoMethodError: undefined method `each' for #<User:0x00000004d737d8> 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/activemodel-3.0.3/lib/active_model/attribute_methods.rb:364:in `method_missing' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/activerecord-3.0.3/lib/active_record/attribute_methods.rb:46:in `method_missing' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/activerecord-3.0.3/lib/active_record/associations/association_collection.rb:352:in `replace' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/activerecord-3.0.3/lib/active_record/associations.rb:1524:in `block in collection_accessor_methods' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/proxy/build.rb:13:in `set' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:320:in `block in run' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:320:in `each' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:320:in `run' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:270:in `create' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:301:in `default_strategy' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl.rb:20:in `Factory' 
    from /home/ryan/Sites/Holocron/spec/factories/users.rb:22:in `block (2 levels) in <top (required)>' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/proxy.rb:29:in `call' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/proxy.rb:29:in `block in run_callbacks' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/proxy.rb:28:in `each' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/proxy.rb:28:in `run_callbacks' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/proxy/create.rb:7:in `result' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:327:in `run' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:270:in `create' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl/factory.rb:301:in `default_strategy' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/factory_girl-1.3.2/lib/factory_girl.rb:20:in `Factory' 
    from (irb):1 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/railties-3.0.3/lib/rails/commands/console.rb:44:in `start' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/railties-3.0.3/lib/rails/commands/console.rb:8:in `start' 
    from /home/ryan/.rvm/gems/ruby-1.9.2-p136@Holocron/gems/railties-3.0.3/lib/rails/commands.rb:23:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>' 

Answer 1

を追加するには、私はあなたがあなた自身を混同してきたと信じています。

Factory.define :admin_role, :class => 'Role' do |userrole|はRoleと定義されていますが、工場ではUserroleのように扱います。 Rolehas_many :userroles以来user.after_create { |u| Factory(:admin_role, :userroles => [u]) }： - （。Rubyの規則が強調使用ところで、そうUSERROLEはのUserRole/USER_ROLEになります）また

を、あなたのuser.after_create { |u| Factory(:admin_role, :userroles => u) }はおそらくあるべき。