ActiveModel::SecurePassword 未定义方法 `password_digest='

Question

我尝试按照 http:// /bcardarella.com/post/4668842452/exploring-rails-3-1-activemodel-securepassword

我结束红灯亮起...

user.rb

class User < ActiveRecord::Base
  has_secure_password
  validates :password, :presence => { :on => :create }
end

factory.rb

Factory.define :user do |f|
  f.email "[email protected]"
  f.password "foobar"
  f.password_confirmation { |u| u.password }  
end

spec_user.rb

describe User do
  it "should authenticate with matching username and password" do
    user = Factory(:user, :email => '[email protected]', :password => 'secret')
    User.authenticate('[email protected]', 'secret').should == user
  end
end

，我亮起红灯...

 Failure/Error: user = Factory(:user, :email => '[email protected]', :password => 'secret')
 NoMethodError:
   undefined method `password_digest=' for #<User:0xb383460>

我认为这是 rake db:migrate 问题，我查看了 Rails c ，但显然已经定义了 password_digest 。

ruby-1.9.2-p180 :007 > a = User.new
 => #<User id: nil, email: nil, password_digest: nil, is_admin: nil, created_at: nil, updated_at: nil> 
ruby-1.9.2-p180 :008 > a.password_digest = 3
 => 3 

Answer 1

我遇到了同样的问题，并在以下评论中找到了（我认为是）更好的解决方案：

http://bcardarella.com/post/4668842452/exploring-rails-3-1-activemodel-securepassword#comment-281584959

基本上，您需要在您的具有迁移的模型。在此之前，它会添加一个password_digest=方法，但不会被保存，并且该方法不会出现在工厂等中

Answer 2

解决了

describe User do
  it "should authenticate with matching username and password" do
    user = Factory(:user, :email => '[email protected]', :password => 'secret')
    User.find_by_email('[email protected]').try(:authenticate, 'secret').should == user
  end
end