Ruby on Rails Tutorial( by Hartl) 当做 name = Faker：：Name.name encoutner 无法批量分配受保护的属性错误

Question

更新：我在Ruby 1.8上运行。存储库的链接 github.com/lauherk/sample_app

我正在学习Micheal hartl的Ruby on Rails教程，在第9章中，我遇到了使用示例用户填充数据库的问题 http://ruby.railstutorial.org/chapters/updating-showing-and-deleting-users?version=3.2#sec:sample_users

我的耙子的代码是：

namespace :db do
  desc "Fill database with sample data"
  task populate: :environment do
    User.create!(:name => "Example User",
                 :email => "[e-mail]",
                 :password => "foobar",
                 :password_confirmation => "foobar")
    99.times do |n|
      name  = Faker::Name.name
      email = "example-#{n+1}@railstutorial.org"
      password  = "password"
      User.create!(:name => name,
                   :email => email,
                   :password => password,
                   :password_confirmation => password)
    end
  end
end

运行两者后：

bundle exec rake db:reset
bundle exec rake db:populate

我从命令行收到以下错误：

rake aborted!
Can't mass-assign protected attributes: Lawrence Kertzmann
/Library/Ruby/Gems/1.8/gems/activemodel-3.2.2/lib/active_model/mass_assignment_security/sanitizer.rb:48:in `process_removed_attributes'

（每次运行耙子时都会更改特定名称）

我已经检查并确保在我的用户模型中我有代码

attr_accessible :name, :email, :password, :password_confirmation

甚至尝试过设置

  config.active_record.whitelist_attributes = false

然而，在命令行上仍然有相同的结果。

有什么技巧可以让我的数据库填充示例用户吗？

非常感谢。

Answer 1

添加

attr_accessible :name

到模型。目前，您只有:user_name（和其他值）可访问。

Answer 2

只需将authentication_token添加到attr_accessible 例如：我收到的错误

Media1s-Mac-mini：rails_apps media1$ rake clipsfree_import RAILS_ENV=发展 csvfile=/Users/media1/Desktop/clips/atemp5/demotracks2/import.csv rake 中止！无法批量分配受保护的属性：标题 /usr/local/rvm/gems/ruby-1.9.3-p194/gems/activemodel-3.2.11/lib/active_model/mass_assignment_security/sanitizer.rb：48：in process_removed_attributes' /usr/local/rvm/gems/ruby-1.9.3-p194/gems/activemodel-3.2.11/lib/active_model/mass_assignment_security/sanitizer.rb：20：indebug_protected_attribute_removal' /usr/local/rvm/gems/ruby-1.9.3-p194/gems/activemodel-3.2.11/lib/active_model/mass_assignment_security/sanitizer.rb：12：in 消毒' /usr/local/rvm/gems/ruby-1.9.3-p194/gems/activemodel-3.2.11/lib/active_model/mass_assignment_security.rb：230：insanitize_for_mass_assignment'/usr/local/rvm/gems/ruby-1.9.3-p194/gems/activerecord-3.2.11/lib/active_record/attribute_assignment.rb：75：in assign_attributes' /usr/local/rvm/gems/ruby-1.9.3-p194/gems/activerecord-3.2.11/lib/active_record/base.rb：497：ininitialize' /users/media1/Desktop/rails_apps/lib/tasks/clipsfree_import.rake：14：in 新' /Users/media1/Desktop/rails_apps/lib/tasks/clipsfree_import.rake：14：inblock （2 级）在 ' /users/media1/Desktop/rails_apps/lib/tasks/clipsfree_import.rake：5：in 每个' /Users/media1/Desktop/rails_apps/lib/tasks/clipsfree_import.rake：5：inblock 在 ' 任务中： TOP => clipsfree_import （通过运行任务查看完整跟踪 与 --跟踪）

解决方案：在 loopsfree.rb 的 models 文件夹中添加了要attr_accessible的属性标题

class Loopsfree < ActiveRecord::Base attr_accessible :ISRC, :title, :artist, :bpm, :file_name, :genre, :id, :sub_genre end

希望这对:)有所帮助快乐编码