导轨+设计sign_in错误

问题描述

制定抛出：

"NoMethodError (undefined method `login' for #<ActionDispatch::Request:0x00000004e42d80>):
"

我每次尝试登录的时间。
在此应用登陆字段用作认证密钥：

every time I try to log in.In this application "login" field is used as authentication key:

/config/initializers/devise.rb：

/config/initializers/devise.rb:

config.authentication_keys = [ :login ]

在session_controller.rb我用的before_filter ：

In session_controller.rb I used before_filter:

  def configure_permitted_parameters
    devise_parameter_sanitizer.for(:user) { |u| u.permit(:login, :password) }
  end

和我的的routes.rb ：

devise_for :users, :controllers => { :sessions => 'sessions', :registrations => 'registrations', :invitations => 'users/invitations'}

这个问题从Rails 3中升级到Rails的4后出现。
谁能向我解释，我在做什么错了？

This problem appeared after upgrade from Rails 3 to Rails 4.Can someone explain to me, what I'm doing wrong?

更新

我的坏。发现不对参数初始化色器件，由我的同事设置。
反正我有错误消息：

My bad. Found wrong parameter in devise initializer, set by my co-worker.Anyway i have error message:

NameError (undefined local variable or method `invitation_token' for #<User:0x0000000286c750>):
  app/controllers/sessions_controller.rb:6:in `create'

会话＃创建：

  def create
    self.resource = warden.authenticate!(auth_options)
    sign_in(resource_name, resource)

    render :json => { :user_id => resource.id }, :status => :created
  end

更新

废话。我的同事也发生了变化database.yml，以另一个数据库。所以这个数据库没有被迁移到最后的状态=。耙DB后：迁移一切工作正常。感谢所有。

Crap. My co-worker also changed database.yml to another DB. So this DB was not migrated to last state =. After rake db:migrate all works fine. Thanks to all.

推荐答案

根据这个链接，你应该创建一个登录虚拟属性。

According to this link, you should create a login virtual attribute in the User model.

由任一用户名或电子邮件结果验证#Virtual属性
＃这个是除了真正的坚持现场像用户名结果
attr_accessor中：登录

#Virtual attribute for authenticating by either username or email
#This is in addition to a real persisted field like 'username'
attr_accessor :login

同时添加登录attr_accessible钢轨3

Also add login to attr_accessible for rails 3

attr_accessible :login

您可能还需要覆盖的用户模型设计的find_for_database_authentication方法
（假设它的ActiveRecord）

You may also need to overwrite Devise's find_for_database_authentication method in User model(assuming it is activerecord)

# app/models/user.rb

    def self.find_first_by_auth_conditions(warden_conditions)
      conditions = warden_conditions.dup
      if login = conditions.delete(:login)
        where(conditions).where(["lower(username) = :value OR lower(email) = :value", { :value => login.downcase }]).first
      else
        where(conditions).first
      end
    end

您可能需要修改配置/初始化/ devise.rb有

You may need to modify config/initializers/devise.rb to have

config.reset_password_keys = [ :login ]
config.confirmation_keys = [ :login ]

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