cheat sheets.

--- factory_girl version 1	Thu Jul 09 23:08:54 -0700 2009
+++ factory_girl version 7	Thu Aug 18 06:58:22 -0700 2011
@@ -1,79 +1,89 @@
-Factory girl is a object factory library to be used with your tests.
+Factory girl is an object factory library to be used with your tests.
 
 Installation:
-$ [sudo] gem install thoughtbot-factory_girl --source http://gems.github.com
+$ [sudo] gem install factory_girl
 
 or with Rails >2.1 dependency management, add to environment.rb
 
-config.gem "thoughtbot-factory_girl", :lib => "factory_girl", :source =>
-"http://gems.github.com"
+config.gem "factory_girl", :lib => false
 
 Then add:
   require 'factory_girl'
 to your test_helper.rb or spec_helper.rb
 
 Defining factories:
 # This will guess the User class
 Factory.define :user do |u|
   u.first_name 'John'
   u.last_name  'Doe'
   u.admin false
 end
 
 # This will use the User class (Admin would have been guessed)
 Factory.define :admin, :class => User do |u|
   u.first_name 'Admin'
   u.last_name  'User'
   u.admin true
 end
 
 # This will copy the attributes from the parent factory to the current one with
 an ability to override them.
 Factory.define :super_user, :parent => :user do |u|
   u.super_user true
 end
 
 Lazy Attributes:
 Factory.define :user do |u|
   # ...
   u.activation_code { User.generate_activation_code }
 end
 
 Dependent Attributes:
 Factory.define :user do |u|
   u.first_name 'Joe'
   u.last_name  'Blow'
   u.email {|a| "#{a.first_name}.#{a.last_name}@example.com".downcase }
 end
 
 Associations:
 Factory.define :post do |p|
   # ...
   p.author {|author| author.association(:user, :last_name => 'Writely') }
 end
 
 # Or in short form
 Factory.define :post do |p|
   p.association :author, :factory => :user
 end
 
 Sequences:
 # Defines a new sequence
 Factory.sequence :email do |n|
   "person#{n}@example.com" 
 end
 
 #Uses the sequence
 Factory.next :email
 # => "person1@example.com"
+
+# can also be defined inline:
+Factory.define :user do |u|
+  u.sequence(:email) { |n| "persion#{n}@example.com" }
+end
+
+Callbacks:
+# Run a callback after building the record. Handy for Devise.
+Factory.define :user do |u|
+  u.after_build { |u| u.skip_confirmation! }
+end
 
 Using factories:
 # Build and save a User instance
 Factory(:user)
 
 # Build a User instance and override the first_name property
 Factory.build(:user, :first_name => 'Joe')
 
 # Return an attributes Hash that can be used to build a User instance
 attrs = Factory.attributes_for(:user)