当新用户提交新用户注册表时，他们会收到以下错误消息。我怀疑是因为 devise/registrations_controller.rb 不存在。

我是否需要创建此文件夹结构和 Controller ，或者我是否可以修改 routes.rb 以避免搜索不存在的 Controller ？

错误:

 ArgumentError in Devise::RegistrationsController#create

 wrong number of arguments (0 for 1)
 Rails.root: C:/Users/COMPAQ/Documents/NetBeansProjects/RailsBlog

 Parameters:

 {"utf8"=>"✓",
  "authenticity_token"=>"xxxxxxxxxxxxxxxxxxxxxx/c=",
  "user"=>{"email"=>"foo@bar.com",
  "password"=>"[FILTERED]",
  "password_confirmation"=>"[FILTERED]"},
  "commit"=>"Sign up"}

路线.rb:

RailsBlog::Application.routes.draw do

  devise_for :users

User.rb(模型):

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

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me
  attr_accessible :name, :email, :password, :password_confirmation
  has_secure_password

  #has_many :microposts, dependent: :destroy
  #has_many :relationships, foreign_key: "follower_id", dependent: :destroy
  #has_many :followed_users, through: :relationships, source: :followed

  #has_many :reverse_relationships, foreign_key: "followed_id",
           #class_name:  "Relationship",
           #dependent:   :destroy
  #has_many :followers, through: :reverse_relationships, source: :follower

  before_save { |user| user.email = email.downcase }
  before_save :create_remember_token

  validates :name, presence: true, length: { maximum: 50 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, presence:   true,
            format:     { with: VALID_EMAIL_REGEX },
            uniqueness: { case_sensitive: false }
  validates :password, presence: true, length: { minimum: 6 }
  validates :password_confirmation, presence: true

  def feed
    Micropost.from_users_followed_by(self)
  end

  def following?(other_user)
    relationships.find_by_followed_id(other_user.id)
  end

  def follow!(other_user)
    relationships.create!(followed_id: other_user.id)
  end

  def unfollow!(other_user)
    relationships.find_by_followed_id(other_user.id).destroy
  end

  private

  def create_remember_token
    self.remember_token = SecureRandom.urlsafe_base64
  end

end

追溯 - 我看过但无法确定问题出在哪里:

devise (2.1.2) lib/devise/models/database_authenticatable.rb:109:in `password_digest'
activemodel (3.2.1) lib/active_model/errors.rb:254:in `block in add_on_blank'
activemodel (3.2.1) lib/active_model/errors.rb:253:in `each'
activemodel (3.2.1) lib/active_model/errors.rb:253:in `add_on_blank'
activemodel (3.2.1) lib/active_model/validations/presence.rb:9:in `validate'
activesupport (3.2.1) lib/active_support/callbacks.rb:310:in `_callback_before_185'
activesupport (3.2.1) lib/active_support/callbacks.rb:484:in `_run__875543711__validate__219075599__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_validate_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
activemodel (3.2.1) lib/active_model/validations.rb:212:in `run_validations!'
activemodel (3.2.1) lib/active_model/validations/callbacks.rb:53:in `block in run_validations!'
activesupport (3.2.1) lib/active_support/callbacks.rb:425:in `_run__875543711__validation__219075599__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_validation_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
activemodel (3.2.1) lib/active_model/validations/callbacks.rb:53:in `run_validations!'
activemodel (3.2.1) lib/active_model/validations.rb:179:in `valid?'
activerecord (3.2.1) lib/active_record/validations.rb:69:in `valid?'
activerecord (3.2.1) lib/active_record/validations.rb:77:in `perform_validations'
activerecord (3.2.1) lib/active_record/validations.rb:50:in `save'
activerecord (3.2.1) lib/active_record/attribute_methods/dirty.rb:22:in `save'
activerecord (3.2.1) lib/active_record/transactions.rb:241:in `block (2 levels) in save'
activerecord (3.2.1) lib/active_record/transactions.rb:295:in `block in with_transaction_returning_status'
activerecord (3.2.1) lib/active_record/connection_adapters/abstract/database_statements.rb:190:in `transaction'
activerecord (3.2.1) lib/active_record/transactions.rb:208:in `transaction'
activerecord (3.2.1) lib/active_record/transactions.rb:293:in `with_transaction_returning_status'
activerecord (3.2.1) lib/active_record/transactions.rb:241:in `block in save'
activerecord (3.2.1) lib/active_record/transactions.rb:252:in `rollback_active_record_state!'
activerecord (3.2.1) lib/active_record/transactions.rb:240:in `save'
devise (2.1.2) app/controllers/devise/registrations_controller.rb:15:in `create'
actionpack (3.2.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.1) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.1) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.1) lib/active_support/callbacks.rb:436:in `_run__853675117__process_action__862668662__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.1) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.1) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.1) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
activerecord (3.2.1) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.1) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.1) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.1) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.1) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.1) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `dispatch'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:30:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/mapper.rb:40:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:589:in `call'
warden (1.2.1) lib/warden/manager.rb:35:in `block in call'
warden (1.2.1) lib/warden/manager.rb:34:in `catch'
warden (1.2.1) lib/warden/manager.rb:34:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.1) lib/rack/etag.rb:23:in `call'
rack (1.4.1) lib/rack/conditionalget.rb:35:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/cookies.rb:338:in `call'
activerecord (3.2.1) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:443:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `_run__805649291__call__219075599__callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.1) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.1) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.1) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.1) lib/rack/lock.rb:15:in `call'
actionpack (3.2.1) lib/action_dispatch/middleware/static.rb:53:in `call'
railties (3.2.1) lib/rails/engine.rb:479:in `call'
railties (3.2.1) lib/rails/application.rb:220:in `call'
rack (1.4.1) lib/rack/content_length.rb:14:in `call'
railties (3.2.1) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
C:/RUBY/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/server.rb:191:in `block in  start_thread'

最佳答案

Devise::RegistrationsController 存在 within the Devise gem ，因此您无需创建它。

更新: 发生错误是因为您使用的是 has_secure_password，它用于自制身份验证解决方案。 Devise 不需要它(它处理密码本身的加密)。摆脱那条线!

它导致您的应用崩溃的原因是它希望 password_digest 成为您模型上的一个属性，并且 validates its presence .当它进行验证时，它会尝试读取属性，但它得到的却是 Devise 的 password_digest 方法(它希望接收密码作为参数，因此引发了一个 ArgumentError 当它没有得到一个)。

关于ruby-on-rails - 设计和 Rails - 设计中的 ArgumentError::RegistrationsController#create，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/12715627/