我刚刚遇到了omniauth-identity，它使用户能够在不使用Facebook、Twitter等的情况下登录和注册。
有一个步骤是你必须创建一个Identity模型（我正在关注这个Railscast）：
class Identity < OmniAuth::Identity::Models::ActiveRecord
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
end
现在，我已经有了一个User模型和一个登录和注册系统（按照Ruby on Rails 教程创建）：
用户.rb：
class User < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation
has_secure_password
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
private
def create_remember_token
self.remember_token = SecureRandom.urlsafe_base64
end
所以我有点困惑。是否应该删除与User模型中的身份验证有关的行（例如验证attr_accesible等create_remember_token以及用户表中的name和email字段）？
并删除session_helper.rb呢？
module SessionsHelper
def sign_in(user)
cookies.permanent[:remember_token] = user.remember_token
self.current_user = user
end
def signed_in?
!current_user.nil?
end
def sign_out
self.current_user = nil
cookies.delete(:remember_token)
end
def current_user=(user)
@current_user = user
end
def current_user
@current_user ||= User.find_by_remember_token(cookies[:remember_token])
end
def current_user?(user)
user == current_user
end
def signed_in_user
unless signed_in?
store_location
redirect_to signin_url, notice: "Please sign in."
end
end
def redirect_back_or(default)
redirect_to(session[:return_to] || default)
session.delete(:return_to)
end
def store_location
session[:return_to] = request.url
end
end
因为，如果我错了，请纠正我，但我认为omniauth-identity也可以处理（除了current_user部分。