ruby-on-rails - 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使用rails 3.1 ActiveModel::SecurePassword

最后我遇到了红灯......

用户.rb

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

工厂.rb

Factory.define :user do |f|
  f.email "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="6c0a03032c0e0d1e420f0301" rel="noreferrer noopener nofollow">[email protected]</a>"
  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 => '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="cfa9bdaea1a48fa8a2aea6a3e1aca0a2" rel="noreferrer noopener nofollow">[email protected]</a>', :password => 'secret')
    User.authenticate('<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="3a5c485b54517a5d575b535614595557" rel="noreferrer noopener nofollow">[email protected]</a>', 'secret').should == user
  end
end

我遇到了红灯...

 Failure/Error: user = Factory(:user, :email => '<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0c6a7e6d62674c6b616d6560226f6361" rel="noreferrer noopener nofollow">[email protected]</a>', :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，您需要通过迁移向模型添加一个password_digest 字段。在此之前，它会添加一个password_digest=方法，但不会保存，并且该方法不会出现在工厂等中