Question

在保存用户模型时，我收到（验证失败：Uid不能为空）。 Uid本身属于Identity对象-作为多种身份类型的单个身份访问点。换句话说，您将能够在应用程序内使用facebook，twitter或linkedin omniauth策略，而无需创建多个帐户。它似乎不像广告中那样起作用。鉴于我无法从该应用程序登录LinkedIn后创建用户。

我试图将env引用换成request.env。因为，它在当前范围中不存在。我试图找到错误，但是在创建用户之前找不到确切的身份模型为什么不存储身份的原因。创建User对象后，该操作立即失败，而不是检查用户是否存在带有附加的身份或应创建的身份。

服务器开发日志

Started GET "/users/auth/linkedin" for 127.0.0.1 at 2019-08-03 22:56:03 -0400
I, [2019-08-03T22:56:04.789247 #23148]  INFO -- omniauth: (linkedin) Request phase initiated.
Started GET "/users/auth/linkedin/callback?oauth_token=77--2555555-5555-4444-ssfs-dcsfsfsfsfsf93&oauth_verifier=28090" for 127.0.0.1 at 2019-08-03 22:56:31 -0400
I, [2019-08-03T22:56:32.422234 #23148]  INFO -- omniauth: (linkedin) Callback phase initiated.
Processing by OmniauthCallbacksController#linkedin as HTML
  Parameters: {"oauth_token"=>"77--2555555-5555-4444-ssfs-dcsfsfsfsfsf93", "oauth_verifier"=>"28090"}
  Identity Load (1.4ms)  SELECT  "identities".* FROM "identities" WHERE "identities"."uid" IS NULL AND "identities"."provider" = ? LIMIT ?  [["provider", "linkedin"], ["LIMIT", 1]]
  â†³ app/models/identity.rb:7
   (0.2ms)  begin transaction
  â†³ app/models/identity.rb:7
  Identity Exists (1.1ms)  SELECT  1 AS one FROM "identities" WHERE "identities"."uid" IS NULL AND "identities"."provider" = ? LIMIT ?  [["provider", "linkedin"], ["LIMIT", 1]]
  â†³ app/models/identity.rb:7
   (0.2ms)  rollback transaction
  â†³ app/models/identity.rb:7
   (0.2ms)  begin transaction
  â†³ app/models/user.rb:47
  User Exists (2.0ms)  SELECT  1 AS one FROM "users" WHERE "users"."email" = ? LIMIT ?  [["email", "change@me--linkedin.com"], ["LIMIT", 1]]
  â†³ app/models/user.rb:47
  User Create (44.3ms)  INSERT INTO "users" ("email", "encrypted_password", "created_at", "updated_at", "confirmed_at") VALUES (?, ?, ?, ?, ?)  [["email", "change@me--linkedin.com"], ["encrypted_password", "$2a"], ["created_at", "2019-08-04 02:56:33.928307"], ["updated_at", "2019-08-04 02:56:33.928307"], ["confirmed_at", "2019-08-04 02:56:33.921311"]]
  â†³ app/models/user.rb:47
   (134.0ms)  commit transaction
  â†³ app/models/user.rb:47
   (0.1ms)  begin transaction
  â†³ app/models/user.rb:54
  Identity Exists (2.1ms)  SELECT  1 AS one FROM "identities" WHERE "identities"."uid" IS NULL AND "identities"."provider" = ? LIMIT ?  [["provider", "linkedin"], ["LIMIT", 1]]
  â†³ app/models/user.rb:54
   (0.2ms)  rollback transaction
  â†³ app/models/user.rb:54
Completed 422 Unprocessable Entity in 879ms (ActiveRecord: 191.3ms)



ActiveRecord::RecordInvalid (Validation failed: Uid can't be blank):

app/models/user.rb:54:in `find_for_oauth'
(eval):3:in `linkedin'

omniauth_callbacks_controller.rb

class OmniauthCallbacksController < Devise::OmniauthCallbacksController

  def self.provides_callback_for(provider)
    class_eval %Q{
      def #{provider}
        @user = User.find_for_oauth(request.env["omniauth.auth"], current_user)

        if @user.persisted?
          sign_in_and_redirect @user, event: :authentication
          set_flash_message(:notice, :success, kind: "#{provider}".capitalize) if is_navigational_format?
        else
          session["devise.#{provider}_data"] = env["omniauth.auth"]
          redirect_to new_user_registration_url
        end
      end
    }
  end

  [:facebook, :linkedin].each do |provider|
    provides_callback_for provider
  end

  def after_sign_in_path_for(resource)
    if resource.email_verified?
      super resource
    else
      finish_signup_path(resource)
    end
  end

  def failure
    redirect_to root_path
  end
end

identity.rb

class Identity < ApplicationRecord
  belongs_to :user
  validates_presence_of :uid, :provider
  validates_uniqueness_of :uid, :scope => :provider

  def self.find_for_oauth(auth)
    find_or_create_by(uid: auth.uid, provider: auth.provider)
  end
end

user.rb

class User < ApplicationRecord
  TEMP_EMAIL_PREFIX = 'change@me'
  TEMP_EMAIL_REGEX = /\Achange@me/

  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable, :omniauthable, :trackable, :confirmable

  validates_format_of :email, :without => TEMP_EMAIL_REGEX, on: :update

  def self.find_for_oauth(auth, signed_in_resource = nil)

    # Get the identity and user if they exist
    identity = Identity.find_for_oauth(auth)

    # If a signed_in_resource is provided it always overrides the existing user
    # to prevent the identity being locked with accidentally created accounts.
    # Note that this may leave zombie accounts (with no associated identity) which
    # can be cleaned up at a later date.
    user = if signed_in_resource then
             signed_in_resource
           else
             identity.user
           end

    # Create the user if needed
    if user.nil?

      # Get the existing user by email if the provider gives us a verified email.
      # If no verified email was provided we assign a temporary email and ask the
      # user to verify it on the next step via UsersController.finish_signup
      email_is_verified = auth.info.email && (auth.info.verified || auth.info.verified_email)
      email = auth.info.email if email_is_verified
      user = User.where(:email => email).first if email

      # Create the user if it's a new registration
      if user.nil?
        user = User.new(
            name: auth.extra.raw_info.name,
            #username: auth.info.nickname || auth.uid,
            email: email ? email : "#{TEMP_EMAIL_PREFIX}-#{auth.uid}-#{auth.provider}.com",
            password: Devise.friendly_token[0,20]
        )
        user.skip_confirmation!
        user.save!
      end
    end

    # Associate the identity with the user if needed
    if identity.user != user
      identity.user = user  
      identity.save!     # Where error occurs
    end
    user
  end

  def email_verified?
    self.email && self.email !~ TEMP_EMAIL_REGEX
  end

  protected
  def confirmation_required?
    false
  end
end

预期行为：用户将成功登录自己的Linkedin帐户，并重定向到该应用以完成其注册。

实际结果：创建用户对象，然后它无法保存身份并将Uid留空。

ActiveRecord :: RecordInvalid（验证失败：Uid不能为空）Omniauth LinkedIn Devise

0 个答案: