我正在使用Devise与Omniauth让用户通过Facebook登录我的应用程序。我使用Railscast教程来启动并运行它。
如果用户已经是我的网站的成员通过Facebook进行身份验证工作正常。在使用facebook验证新用户时会出现此问题。当它为我的用户模型创建一个新用户时,我得到“users.encrypted_password可能不是NULL”错误。我无法弄清楚如何从Facebook信息中将密码传递给用户模型。
这就是我所拥有的:
authentations_controller.rb
class AuthenticationsController < ApplicationController
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
current_user.authentications.create!(:provider => omniauth['provider'], :uid => omniauth['uid'])
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 new_user_registration_url
end
end
end
user.rb
def apply_omniauth(omniauth)
self.email = omniauth['user_info']['email'] if email.blank?
authentications.build(:provider => omniauth['provider'], :uid => omniauth['uid'])
end
def password_required?
(authentications.empty? || !password.blank?) && super
end
任何帮助都会很棒,提前谢谢!
答案 0 :(得分:15)
添加:密码=&gt;从facebook omniauth创建新用户时,Devise.friendly_token [0,20]。
我相信Devise期望在密码字段中创建一个用户。由于在做facebook oauth时没有密码(至少不在你的应用程序端),你只需要创建一个虚拟密码,如上图所示。
有关详情,请参阅此处: https://github.com/plataformatec/devise/wiki/OmniAuth:-Overview