Facebook注册后重定向到页面 [英] Redirect to Page after Facebook Sign Up

问题描述

我想重定向到 / getstarted / welcome 在用户首次注册 之后

我的omniauth回调是：

  def facebook 
＃您需要在模型中实现以下方法（例如app / models / user.rb）
 @user || = 
 User.find_for_facebook_oauth（request.env [omniauth.auth]，current_user）
 
如果@ user.persisted？ 
＃如果@user没有被激活，这将抛出
 sign_in_and_redirect @user，event：：authentication 
 if is_navigational_format？ 
 set_flash_message（：notice，：success，kind：Facebook）
 end 
 else 
 session [devise.facebook_data] = request.env [omniauth.auth ] 
 redirect_to new_user_registration_url 
 end 
 end 
  

对于devise我使用

  def after_sign_up_path_for（来源）
'/ getstarted / welcome'
 end 
  

我的用户型号：

Facebook设置

  def self.find_for_facebook_oauth（auth，signed_in_resource = nil）
 user = User.where（provider：auth.provider，uid：auth.uid ）.first 
如果user.present？ 
 user 
 else 
 user = User.create（first_name：auth.extra.raw_info.first_name，
 last_name：auth.extra.raw_info.last_name，
 facebook_link： auth.extra.raw_info.link，
 user_name：auth.extra.raw_info.name，
 provider：auth.provider，
 uid：auth.uid，
 email：auth。 info.email，
密码：Devise.friendly_token [0,20]）
 end 
 end 
  

有人可以帮我设置吗？

解决方案

我通过添加到我的用户模型

  attr_accessor`just_signed_up` 
  

并将其设置为 User.find_for_facebook_oauth 在我创建新用户（ first_or_create 块）的块的这一部分。

编辑：更多的解释

所以在Ruby（不是Rails）中有一个类方法/宏叫做 attr_accessor （实际上theres也是 attr_reader 和 attr_writer ， attr_accessor 是一个简写调用另外两个）

如果您在用户模型中写入

  class User 
 attr_accessor：some_attribute 
  

那么你可以执行

  u = User.first 
 u.some_attribute ='asdf'
 u.some_attribute＃=> 'asdf'
  

但是这个属性不会保存到DB，所以它可以被用作在Rails模型中临时存储一些值。

另一件要知道的是，Ruby中只有两个值是false，那些是 false 和 nil 。

使用这两个技巧，您可以创建一个新的用户并临时在对象上设置此标志

u = User.create
u.just_signed_up = true
u.just_signed_up＃=> true
u.reload！ ＃从DB
u.just_signed_up＃=> nil

中获取记录，因为nil为false，所以除了刚才创建的用户之外，此检查将失败！

I'm trying to Redirect a user after successful Facebook SIGN UP (not sign in).

I want to redirect to /getstarted/welcome after a user Registers for the first time.

My omniauth callback is :

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

        if @user.persisted?
            # This will throw if @user is not activated
            sign_in_and_redirect @user, event: :authentication
            if is_navigational_format?
                set_flash_message(:notice, :success, kind: "Facebook")
            end
        else
            session["devise.facebook_data"] = request.env["omniauth.auth"]
            redirect_to new_user_registration_url
        end
    end

For devise i use

def after_sign_up_path_for(source)
  '/getstarted/welcome'
end

My User Model:

Facebook Settings

  def self.find_for_facebook_oauth(auth, signed_in_resource = nil)
    user = User.where(provider: auth.provider, uid: auth.uid).first
    if user.present?
        user
    else
        user = User.create(first_name:auth.extra.raw_info.first_name,
                                             last_name:auth.extra.raw_info.last_name,
                                             facebook_link:auth.extra.raw_info.link,
                                             user_name:auth.extra.raw_info.name,
                                             provider:auth.provider,
                                             uid:auth.uid,
                                             email:auth.info.email,
                                             password:Devise.friendly_token[0,20])
    end
end

Can someone help me set this up ?

解决方案

I solved it by adding to my User model

attr_accessor `just_signed_up`

and setting it in User.find_for_facebook_oauth in this part of the block where I create a new user (first_or_create block).

EDIT: more explanation

So in Ruby (not Rails) there is a class method/macro called attr_accessor (actually theres also attr_reader and attr_writer, attr_accessor is a shorthand for calling the other two)

If you, in your User model write

class User
  attr_accessor :some_attribute

then you're able to perform

u = User.first
u.some_attribute = 'asdf'
u.some_attribute # => 'asdf'

but this attribute is not going to be saved to DB, so it may be used as a temporary storage of some value in Rails model.

Another thing to know is that there are only two "values" that are false in Ruby, those are false and nil.

Using those two tricks you may create a new user and temporarily set this flag on the object

u = User.create u.just_signed_up = true u.just_signed_up # => true u.reload! # fetches record from DB u.just_signed_up # => nil

and since nil is false, this check will fail for every user except for ones you just created!

这篇关于Facebook注册后重定向到页面的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！