Question

尝试使用google_oauth2 gem登录google +时出现以下错误。

undefined method `find_for_google_oauth2' for #<Class:0x007ff70a337148>

这是我为注册而更改的三个文件。

user.rb

def google_oauth2
  user = User.from_omniauth(request.env["omniauth.auth"])
  if user.persisted?
    flash.notice = "Signed in Through Google!"
    sign_in_and_redirect user
  else
    session["devise.user_attributes"] = user.attributes
    flash.notice = "You are almost Done! Please provide a password to finish setting up your account"
    redirect_to new_user_registration_url
  end
end

omniauth_callbacks_controller.rb

def google_oauth2
  # You need to implement the method below in your model (e.g. app/models/user.rb)
  @user = User.find_for_google_oauth2(request.env["omniauth.auth"], current_user)

  if @user.persisted?
    flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Google"
    sign_in_and_redirect @user, :event => :authentication
  else
    session["devise.google_data"] = request.env["omniauth.auth"]
    redirect_to new_user_registration_url
  end
end

我在devise.rb文件中添加了config.omniauth：google_oauth2。

的routes.rb

 devise_for :users, :controllers => { :registrations => "registrations", :sessions => "sessions", :omniauth_callbacks => "users/omniauth_callbacks" }

Answer 1

您正在从find_for_google_oauth2拨打omniauth_callbacks_controller，但您使用的是错误的方法名称google_oauth2。您应该将google_oauth2替换为find_for_google_oauth2。

似乎user.rb中的代码不正确，因为它包含控制器代码。您是否看到它与控制器代码完全相同？：）

更正user.rb的代码

def self.find_for_google_oauth2(access_token, signed_in_resource=nil)
    data = access_token.info
    user = User.where(:email => data["email"]).first

    # Uncomment the section below if you want users to be created if they don't exist
    # unless user
    #     user = User.create(name: data["name"],
    #        email: data["email"],
    #        password: Devise.friendly_token[0,20]
    #     )
    # end
    user
end

在此处阅读更多内容：https://github.com/zquestz/omniauth-google-oauth2#devise

Google+使用设计和导航进行注册（google_oauth2）

1 个答案: