ruby-on-rails - Rails - 当 Omniauth 集成不存在时生成电子邮件地址

Question

我正在使用带有 Rails 的 omniauth 并尝试让 twitter、facebook 和 google 连接起来进行身份验证，但一直遇到此错误:

PG::Error: ERROR:  duplicate key value violates unique constraint "index_users_on_email"
DETAIL:  Key (email)=() already exists.

这是我的身份验证 Controller :

class AuthorizationsController < ApplicationController


      def create
        authentication = Authorization.find_by_provider_and_uid(auth['provider'], auth['uid'])

        if authentication
          flash[:notice] = "Signed In Successfully"
          sign_in authentication.user, event: :authentication
          redirect_to root_path
        else
          athlete = Athlete.new
          athlete.apply_omniauth(auth)

          debugger

          if athlete.save(validate: false)
            flash[:notice] = "Account created and signed in successfully"
            sign_in athlete, event: :authentication
            redirect_to finalize_profile_path
          else
            flash[:error] = "An error has occurred. Please try again."
            redirect_to root_path
          end
        end
      end

      def failure
        render json: params.to_json
      end

      private

        def auth
          request.env["omniauth.auth"]
        end

        def resource(user_type)
          user_type.downcase.to_sym
        end

    end

我认为发生的事情是，当创建运动员时，它正在创建一个带有空白电子邮件地址的运动员，并且唯一 key 失败了……我该如何解决这个问题？我想我知道如何针对 Google 集成解决此问题，但由于 Twitter 不返回电子邮件，因此此问题不会自行解决

Answer 1

这就是我如何让它工作的:

class AuthorizationsController < ApplicationController

  def create
    authentication = Authorization.find_by_provider_and_uid(auth['provider'], auth['uid'])

    if authentication
      flash[:notice] = "Signed In Successfully"
      sign_in authentication.user, event: :authentication
      redirect_to root_path
    else
      athlete = Athlete.new(email: generate_auth_email(params[:provider]) )
      athlete.apply_omniauth(auth)

      debugger

      if athlete.save(validate: false)
        flash[:notice] = "Account created and signed in successfully"
        sign_in athlete, event: :authentication
        redirect_to finalize_profile_path
      else
        flash[:error] = "An error has occurred. Please try again."
        redirect_to root_path
      end
    end
  end

  def failure
    render json: params.to_json
  end

  private

    def auth
      request.env["omniauth.auth"]
    end

    def resource(user_type)
      user_type.downcase.to_sym
    end

    def generate_auth_email(provider)
      return auth.info.try(:email) unless provider == "twitter"
      return "#{auth.uid}@twitter.com" if provider == "twitter"
    end

end

我使用 twitter uid 创建电子邮件，twitter.com 是域，因为 twitter 不返回电子邮件地址

希望这对以后的人有帮助