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我正在关注 OmniAuth railscasts，但我正面临这个问题。

当我尝试通过 Twitter 登录时收到的错误消息是

Validation failed: Password digest can't be blank, Name can't be blank, Email can't be blank, Email is invalid, Password is too short (minimum is 6 characters), Password confirmation can't be blank

我已经有了另一个身份验证，我只是想让 OmniAuth 与它一起工作。

我想从 Twitter 获取用户名并填写“名称”。但是，我想绕过其余的验证。因此，如果用户使用 Twitter 注册，则该用户将没有电子邮件或密码。

这是我的身份验证控制器

class AuthenticationsController < InheritedResources::Base

def index
    @authentications = current_user.authentications if current_user
end

def create
  omniauth = request.env['omniauth.auth']
  authentication = Authentication.find_by_provider_and_uid(omniauth['provider'], omniauth['uid'])
  if authentication
     flash[:notice] = "Signed in successfully"
     sign_in_and_redirect(:user, authentication.user)
  elsif current_user
   token = omniauth['credentials'].token
   secret = omniauth['credentials'].token
   current_user.authentications.create!(:provider => omniauth['provider'], :uid => omniauth['uid'], :token => token, :secret => token_secret)
   flash[:notice] = "Authentication successful"
   redirect_to authentications_url
   else
    user = User.new
    user.apply_omniauth(omniauth)
    if user.save!
    flash[:notice] = "Signed in successfully"
     sign_in_and_redirect(:user, user)
   else
    session[:omniauth] = omniauth.except('extra')
    redirect_to '/signup'
   end
end
end

def destroy
    @authentication = current_user.authentications.find(params[:id])
    @authentication.destroy
    flash[:notice] = "Successfully destroyed authentication"
    redirect_to authentications_url

end
end

架构数据库

 create_table "authentications", :force => true do |t|
    t.integer  "user_id"
    t.string   "provider"
    t.string   "uid"
    t.datetime "created_at", :null => false
    t.datetime "updated_at", :null => false
    t.string   "secret"
    t.string   "token"
  end

用户.rb

class User < ActiveRecord::Base
  attr_accessible :name, :email, :password, :password_confirmation
has_secure_password
  has_many :authentications
before_save { |user| user.email = user.email.downcase }
  before_save :create_remember_token
  validates_uniqueness_of :name, { case_sensitive: false }
  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, length: { minimum: 6 }
  validates :password_confirmation, presence: true

def apply_omniauth(omni)
 authentications.build(:provider => omni['provider'],
 :uid => omni['uid'],
 :token => omni['credentials'].token,
 :secret => omni['credentials'].secret)
 end

def twitter
unless @twitter_user
provider = self.authentications.find_by_provider('twitter')
@twitter_user = Twitter::Client.new(:oauth_token => provider.token, :oauth_token_secret => provider.secret) rescue nil
end
@twitter_user
end

def apply_twitter(omniauth)
if (extra = omniauth['extra']['user_hash'] rescue false)
# Example fetching extra data. Needs migration to User model:
# self.firstname = (extra['name'] rescue '')
end
end

def hash_from_omniauth(omniauth)
{
:provider => omniauth['provider'],
:uid => omniauth['uid'],
:token => omniauth['credentials']['token'],
:secret => omniauth['credentials']['secret']
}
end
end

我尝试user.save(:validation => false)在身份验证控制器中使用，但它给了我类似的错误。

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