ruby-on-rails - Omniauth Twitter 注册会接管现有的 Devise 用户记录（如果有相同的用户名），而不是停止使用用户名的注册存在错误

Question

我正在使用 Devise (form) 和 Omniauth Twitter。我的注册表单字段是：

• 用户名（唯一，必填）
• 电子邮件（唯一，必填）
• 全名
• 密码

当没有具有相同用户名的现有记录时，两个注册都可以正常工作。用户可以通过 Twitter 或电子邮件表格进行注册。

问题是：

如果用户尝试使用现有用户名通过表单注册，则不允许。没关系。

但是当用户尝试通过 Twitter 注册并且如果 Twitter 昵称（我网站中的用户名）已经存在，它不会阻止注册，它会将现有帐户转移到新注册的 Twitter，它会使用来自的那些更新现有用户详细信息Twitter 个人资料 (API) 。我怎样才能阻止它？

谢谢！

---

omn​​iauth_callbacks_controller.rb

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
    def all
        designer = Designer.from_omniauth(request.env['omniauth.auth'])

        if designer.persisted?
            sign_in_and_redirect designer, notice: "Signed in!"
        else
            session["devise.designer_attributes"] = designer.attributes
            redirect_to new_designer_registration_url
        end

    end

    alias_method :twitter, :all

end

---

设计师.rb

class Designer < ApplicationRecord
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :omniauthable, omniauth_providers: [:twitter]

  validates_presence_of     :email
  validates_uniqueness_of   :email   
  validates_presence_of     :username
  validates_uniqueness_of   :username    
  validates_presence_of     :password, if: :password_required? # recommended
  validates_confirmation_of :password, if: :password_required? # recommended
  validates_length_of       :password, within: password_length, allow_blank: true # recommended


  extend FriendlyId
  friendly_id :username, use: [:slugged, :history]

  has_many :posts

  mount_uploader :avatar, AvatarUploader

  def self.from_omniauth(auth)
    where(provider: auth.provider, uid: auth.uid).first_or_create do |designer|
      designer.provider = auth.provider
      designer.uid = auth.uid

      designer.slug = auth.info.nickname
      designer.username = auth.info.nickname
      designer.twitter_username = auth.info.nickname

      designer.email = auth.info.email 
      designer.password = Devise.friendly_token[0, 20]
      designer.fullname = auth.info.name 
    end
  end

  def self.new_with_session(params, session)
    if session["devise.designer_attributes"]
      new(session["devise.designer_attributes"]) do |designer|
        designer.attributes = params
        designer.valid?
      end
    else
      super
    end
  end

  def password_required?
    super && provider.blank?
  end

  def update_with_password(params, *options)
    if encrypted_password.blank?
      update_attributes(params, *options)
    else
      super
    end
  end
end

---

控制器/registrations_controller.rb

class RegistrationsController < Devise::RegistrationsController


  private

  def sign_up_params
    params.require(:designer).permit(:username, :fullname, :email, :password, :password_confirmation)
  end

  def account_update_params
    params.require(:designer).permit(:username, :fullname, :email, :location, :website, :twitter, :bio, :password, :password_confirmation, :current_password)
  end


  protected

  def after_sign_up_path_for(resource)
    edit_designer_path(current_designer) if current_designer
  end

end

---

设计/注册/new.html.erb

<%= simple_form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
      <%= f.error_notification %>

      <div class="form-inputs">
        <%= f.input :fullname, required: true, placeholder: "Fullname", label: false, input_html: { maxlength: 120 } %>
        <%= f.input :username, unique: true, required: true, placeholder: "Username", label: false, input_html: { maxlength: 120 } %>
        <%= f.input :email, required: true, placeholder: "Email", label: false, input_html: { maxlength: 120 } %>
        <% if f.object.password_required? %>
          <%= f.input :password, required: true, placeholder: "Password (minimum 6 chars)", label: false, input_html: { maxlength: 120 } %>
        <% end %>
        </div>

      <div class="form-actions tl pl1">
        <%= f.button :submit, "Sign up" %>
      </div>
    <% end %>

从这里我重定向到配置文件编辑以获取其他配置文件信息，即设计器/edit.html.erb

Answer 1

我通过将以下代码添加到 Designer.rb ‍♂️</p> 来修复它

  def should_generate_new_friendly_id?
    slug.blank? || username_changed?
  end