Question

我尝试使用Mongoid，devise，devise_token_auth和ng-token-auth进行基于令牌的授权，该授权用于使用Mongoid和Angular作为客户端在Rails中编写的API。

问题是，当我按照安装devise_token_auth的步骤操作时，当我重新启动Rails应用程序时出现错误：undefined method table_exists？＆＃39;对于用户：Class`

我假设因为我使用Mongoid而User类没有使用table_exists?方法。

我该如何解决这个问题？或者，更重要的是我如何才能使其发挥作用？

编辑：这是我的用户类

class User

  include Mongoid::Document
  include Mongoid::Timestamps
  include Mongoid::Enum

  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  ## Database authenticatable
  field :email,              type: String, default: ""
  field :encrypted_password, type: String, default: ""

  ## Recoverable
  field :reset_password_token,   type: String
  field :reset_password_sent_at, type: Time

  ## Rememberable
  field :remember_created_at, type: Time

  ## Trackable
  field :sign_in_count,      type: Integer, default: 0
  field :current_sign_in_at, type: Time
  field :last_sign_in_at,    type: Time
  field :current_sign_in_ip, type: String
  field :last_sign_in_ip,    type: String

  ## Confirmable
  field :confirmation_token,   type: String
  field :confirmed_at,         type: Time
  field :confirmation_sent_at, type: Time
  field :unconfirmed_email,    type: String # Only if using reconfirmable

  include DeviseTokenAuth::Concerns::User

  attr_accessor :reset_token

  enum :role, [:admin, :author]

  after_initialize :set_default_role, :if => :new_record?
  before_create :set_auth_token

  field :first_name,                                        type: String
  field :last_name,                                         type: String
  field :domain,                                                type: String
  field :payment_details,                               type: Hash
  field :subscriber,                                        type: Boolean
  field :stripe_details,                                type: Hash
  field :theme,                                                 type: String

  # Validation
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(?:\.[a-z\d\-]+)*\.[a-z]+\z/i
    before_save { self.email = email.downcase }
    before_create :create_remember_token


  # Get rid of devise-token_auth issues from activerecord
  def table_exists?
    true
  end

  def columns_hash
    # Just fake it for devise-token-auth; since this model is schema-less, this method is not really useful otherwise
    {} # An empty hash, so tokens_has_json_column_type will return false, which is probably what you want for Monogoid/BSON
  end

  def set_default_role
      self.role ||= :admin
  end

end

编辑2：添加堆栈跟踪

http://pastebin.com/yMcr9mZ4

Answer 1

没有看到错误或源代码，我的猜测是你的User类看起来像：

class User
  include Mongoid::Document

  # Maybe some devise options here
end

table_exists?和columns_hash等方法由devise-token-auth使用，因为假设您的用户模型继承自ActiveRecord。例如，参见devise_token_auth/app/models/devise_token_auth/concerns/user.rb的第87-94行：

  module ClassMethods
    protected


    def tokens_has_json_column_type?
      table_exists? && self.columns_hash['tokens'] && self.columns_hash['tokens'].type.in?([:json, :jsonb])
    end
  end

一个解决方案就是通过自己的方式获得胜利。和/或您可以在User类上实现这些缺失的方法：

class User
  # Get rid of devise-token_auth issues from activerecord
  def self.table_exists?
    true
  end

  def self.columns_hash
    # Just fake it for devise-token-auth; since this model is schema-less, this method is not really useful otherwise
    {} # An empty hash, so tokens_has_json_column_type will return false, which is probably what you want for Monogoid/BSON
  end

  def self.serialize(*args)

  end

  include DeviseTokenAuth::Concerns::User


  include Mongoid::Document
  include Mongoid::Timestamps
  include Mongoid::Enum

  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  ## Database authenticatable
  field :email,              type: String, default: ""
  field :encrypted_password, type: String, default: ""

  ## Recoverable
  field :reset_password_token,   type: String
  field :reset_password_sent_at, type: Time

  ## Rememberable
  field :remember_created_at, type: Time

  ## Trackable
  field :sign_in_count,      type: Integer, default: 0
  field :current_sign_in_at, type: Time
  field :last_sign_in_at,    type: Time
  field :current_sign_in_ip, type: String
  field :last_sign_in_ip,    type: String

  ## Confirmable
  field :confirmation_token,   type: String
  field :confirmed_at,         type: Time
  field :confirmation_sent_at, type: Time
  field :unconfirmed_email,    type: String # Only if using reconfirmable



  attr_accessor :reset_token

  enum :role, [:admin, :author]

  after_initialize :set_default_role, :if => :new_record?
  before_create :set_auth_token

  field :first_name,                                        type: String
  field :last_name,                                         type: String
  field :domain,                                                type: String
  field :payment_details,                               type: Hash
  field :subscriber,                                        type: Boolean
  field :stripe_details,                                type: Hash
  field :theme,                                                 type: String

  # Validation
  valid_email_regex = /\A[\w+\-.]+@[a-z\d\-]+(?:\.[a-z\d\-]+)*\.[a-z]+\z/i
  before_save { self.email = email.downcase }
  before_create :create_remember_token




  def set_default_role
      self.role ||= :admin
  end



end

我自己使用了devise-token-auth没有ActiveRecord，我可以告诉你这是可能的。我使用相同的底层函数实现了自己的控制器，而不是使用mount_devise_token_auth_for进行路由。查看devise-token-auth中的控制器，您会发现可以遵循相同的流程，同时使用ActiveRecord方法替换Mongoid方法。祝你好运。

Answer 2

将此内容包含在您的gemfile中

gem 'rails',                      '~> 5.1.4'
gem 'mongoid',                    '~> 6.2', '>= 6.2.1'
gem 'devise_token_auth',          git: 'https://github.com/BunHouth/devise_token_auth.git', branch: 'mongoid'
gem 'mongoid-locker', '~> 0.3.4'

运行bundle install并按照master分支配置进行操作。它对我有用。

如何在Devise，Angular和Mongoid中使用devise_token_auth

2 个答案: